--- title: No More Gaps Exterior - Flexible Gap Filler by canonical_url: https://directory.selleys.com.au/putty-fillers/gap-filler/no-more-gaps-exterior-flexible-gap-filler-by/ category: description: geography: city: state: country: metadata: phone: email: website: publishedAt: productInfo: stock: True productFeedItemId: 79721e55-4758-4d41-8c11-db5081b5caf4 --- # No More Gaps Exterior - Flexible Gap Filler by ## AI Summary **Product:** Selleys No More Gaps Exterior **Brand:** Selleys **Category:** Exterior Gap Sealant **Primary Use:** Fills and seals exterior building gaps where materials expand, contract, and move with temperature changes, weather exposure, and structural settlement. ### Quick Facts - **Best For:** Trade professionals and homeowners sealing exterior gaps around weatherboards, window frames, door jambs, eaves, and external trim work - **Key Benefit:** Remains flexible after curing, moving with the gap to maintain a weatherproof seal through seasonal temperature changes - **Form Factor:** Paste in cartridge (130g — Product Code 102092; 430g — Product Code 101904) - **Application Method:** Dispense directly from cartridge using a standard caulking gun — no mixing or dilution required ### Common Questions This Guide Answers 1. Is Selleys No More Gaps Exterior safe to use? → It carries a GHS Skin Sensitisation Category 1 classification (H317 — May cause an allergic skin reaction) due to isothiazolone preservatives; wear nitrile gloves, protective clothing, and eye protection during use 2. What surfaces can No More Gaps Exterior be used on? → Timber, fibre cement, masonry, and metal substrates — suitable for expansion joints, weatherboard junctions, and gaps around window and door frames 3. How do you clean up No More Gaps Exterior? → Before curing, clean up with water only — no solvents required; once curing begins, water cleanup becomes progressively less effective --- ## Product overview and applications Selleys No More Gaps Exterior is a flexible gap sealant built for the outdoors, formulated specifically for exterior use (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). It fills and seals gaps where building materials expand, contract, and move with temperature changes, weather exposure, and structural settlement. It comes under the commercial name "No More Gaps Exterior" in two sizes: a 130g cartridge (Product Code 102092) and a 430g cartridge (Product Code 101904) (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Rigid fillers crack under stress. No More Gaps Exterior stays flexible after application, moving with the gap rather than against it and keeping the seal intact through every season. That flexibility matters on the exterior, where temperature swings drive real movement in timber, fibre cement, masonry, and metal substrates. This is a purpose-built gap sealant — not a structural adhesive, not an interior caulk, not a decorative filler. The formulation comes ready to use straight from the cartridge. No mixing, no dilution, no preparation beyond a standard caulking gun. That makes it practical for trade professionals running multiple exterior sealing jobs and for homeowners tackling maintenance around weatherboards, window frames, door jambs, eaves, and external trim work. ## Chemistry and composition No More Gaps Exterior is an aqueous-based formulation — water is the primary carrier and solvent system (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). That water-based chemistry has real practical advantages: cleanup before curing needs nothing more than water, VOC emissions stay low compared to solvent-based alternatives, and application in occupied spaces raises no significant odour concerns. Three isothiazolone biocides handle product preservation, stopping microbial growth during storage and after application — critical for a water-based product exposed to ongoing moisture. The formulation contains 1,2-Benzisothiazol-3(2H)-one (BIT, CAS 2634-33-5) at less than 0.05% by weight, 2-Methyl-2H-isothiazol-3-one (MIT, CAS 2682-20-4) at less than 0.05% by weight, and 2-Octyl-2H-isothiazol-3-one (OIT, CAS 26530-20-1) at less than 0.05% by weight (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). The rest of the formulation consists of ingredients confirmed as non-hazardous or below reporting limits. These isothiazolone compounds are industry-standard preservatives, proven effective at very low concentrations. Their presence is what drives the product's skin sensitization classification, covered in full in the hazard section below. The combined concentration of all three stays below 0.15% by weight — enough to protect the product throughout its shelf life and defend the cured sealant against fungal and bacterial degradation in humid exterior environments. The non-hazardous ingredients making up the bulk of the formulation include polymeric binders that deliver flexibility and adhesion, fillers that build body and gap-filling capacity, and additives that control flow properties, skin-over time, and weathering resistance. The specific proprietary blend isn't disclosed by the manufacturer. What matters is the result: as the product cures, water evaporates from the surface inward, leaving behind a polymer matrix that forms a tough, flexible seal. ## Hazard classification and what it means No More Gaps Exterior carries a hazard classification under Safe Work Australia GHS 7 criteria — Sensitisation, Skin, Category 1 (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). That classification requires the "Warning" signal word and the hazard statement H317: "May cause an allergic skin reaction" (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Understanding this before you start work is worth the time. Skin sensitization means repeated or prolonged skin contact can cause an individual to develop an allergic response. This isn't the same as immediate irritation from a single exposure. Sensitization is an acquired condition — the first few exposures may produce no reaction at all, but the immune system can become sensitized to the isothiazolone preservatives. After that, subsequent exposures trigger allergic contact dermatitis: redness, itching, swelling, or blistering (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Not everyone who contacts the product will develop a reaction. Genetics, exposure duration, concentration, and existing sensitivities all play a role. The Category 1 classification confirms that scientific evidence establishes a clear potential for sensitization in susceptible individuals, and that warrants precautionary measures during every application. On the transport side, the product is not classified as a dangerous good under the Australian Code for the Transport of Dangerous Goods by Road & Rail or New Zealand NZS5433 (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). No special shipping documentation, placarding, or dangerous cargo handling is required. The product carries no Poison Schedule classification in Australia (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf) — it's not regulated as a scheduled poison under the Standard for the Uniform Scheduling of Medicines and Poisons. On fire hazards: the product is classified non-combustible (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). However, once the aqueous component evaporates, residual material can burn if ignited (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). As dispensed, the product won't support combustion — its water content prevents that. Fully dried product could contribute fuel to an existing fire under direct flame exposure, but this presents no meaningful fire risk under normal conditions. ## Safe handling and personal protection The precautionary statements for No More Gaps Exterior set clear guidelines for safe handling. Avoid breathing dust, fume, gas, mist, vapours or spray during application (P261) (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). The product applies as a paste rather than a spray, but this precaution covers any mist generation during vigorous dispensing or cleanup. Contaminated work clothing must not leave the workplace (P272) (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). This prevents cross-contamination of home environments and protects family members from secondary exposure. Contaminated clothing must be removed and washed before reuse (P362+P364) (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Given the skin sensitization hazard, residual product on clothing creates prolonged skin contact that increases sensitization risk. Keep the product out of reach of children (P102) and read and follow all instructions carefully (P103) (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Gap sealants are often used in domestic settings where children can access work areas, so this matters in practice. PPE requirements are clear: protective gloves, protective clothing, and eye/face protection (P280) (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). For first aid responders, the documentation recommends safety shoes, overalls, gloves, and safety glasses (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Nitrile rubber gloves are identified as suitable for intermittent contact, though the documentation notes that variations in glove construction and local conditions mean users need to make a final assessment (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). That guidance on nitrile gloves is worth taking seriously. Not all glove materials protect equally against aqueous formulations containing preservatives. Nitrile rubber delivers strong resistance to water-based products while keeping the dexterity needed for precise application work. Glove thickness, brand-specific differences, and work duration all influence protection — factor these in before you start. Wash hands before smoking, eating, drinking, or using the toilet. Wash contaminated clothing and protective equipment before storing or re-using (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). This hygiene protocol prevents ingestion of product residues and cuts cumulative skin exposure that could lead to sensitization over time. ## Application and usage guidelines No More Gaps Exterior is designed for straightforward application straight from the cartridge. The safety data sheet focuses on handling parameters, but these directly influence how well the job goes. Dispense from the cartridge using a standard caulking gun. The paste consistency lets you tool the product into gaps and smooth it with the right tool or a wet finger. Because this is an aqueous-based formulation, cleanup before the product skins over needs nothing more than water (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Excess product on tools, surrounding surfaces, or hands wipes away with a damp cloth — no solvents needed. Timing matters, though. As the water-based carrier evaporates and the surface begins to cure, water cleanup becomes progressively less effective. Keep a damp cloth within reach during application and address any overrun immediately rather than waiting until the full gap-filling task is complete. During application, stay aware of the skin sensitization hazard. Even with gloves on, avoid unnecessary skin contact. If product contacts skin, remove contaminated clothing and flush skin with running water (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Effects may be delayed (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf) — sensitization reactions may not appear immediately but can develop hours after exposure in previously sensitized individuals. The product's recommended use as a gap sealant (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf) means it fills gaps, not bonds substrates under stress. Apply it to fill voids where it can achieve adhesion to both sides of the gap, rather than as a thin adhesive layer between two surfaces under load. Exterior gaps that suit this flexible sealant include expansion joints, junctions between dissimilar materials such as timber against masonry, weatherboard junctions, and gaps around window and door frames where seasonal movement occurs. ## Storage requirements Proper storage protects product performance and extends shelf life. Store in a cool, dry, well-ventilated place out of direct sunlight (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Each element of that requirement addresses a specific degradation risk. Cool storage prevents accelerated curing or component separation that elevated temperatures can trigger. The product is built to perform in hot exterior conditions once applied, but prolonged storage heat exposure compromises unused product in the cartridge. Dry storage prevents moisture infiltration that could affect the cartridge seal or introduce contamination. Well-ventilated storage allows any minor vapour emissions from cartridges to disperse rather than accumulate. Protection from direct sunlight prevents heat buildup and UV degradation of both the cartridge materials and the product itself. Keep the product away from foodstuffs (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Store away from incompatible materials as described in Section 10 of the safety data sheet (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf), though this non-reactive, aqueous-based product presents minimal compatibility concerns. Keep the product away from heat sources and ignition (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). While non-combustible as dispensed, this precaution prevents exposure to conditions that could evaporate the water carrier and leave behind combustible residual material — particularly if a cartridge were to rupture near a heat source. Store containers upright (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). This stops product from contacting seals and closures where it could harden and block the cartridge from dispensing properly, and keeps the formulation evenly distributed within the cartridge. Keep containers closed when not in use and check regularly for spills (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). An open cartridge allows water evaporation from the product surface, leading to skinning and eventually blocking dispensing. Cap or clean the nozzle tip after every use — hardened product in the opening is a preventable problem. ## Emergency response and first aid For any poisoning concern, contact a doctor or the Poisons Information Centre — Phone 131 126 in Australia or 0800 764 766 in New Zealand (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). **Inhalation exposure**: If someone is overcome by fumes or vapours — unusual with this water-based product but possible in a confined space — remove the person from exposure without becoming a casualty yourself (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Remove contaminated clothing and loosen remaining clothing. Allow the patient to rest in the most comfortable position and keep them warm until fully recovered. Seek medical advice if effects persist (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). **Skin contact**: Effects may be delayed (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). If skin or hair contact occurs, remove contaminated clothing and flush skin and hair with running water. If swelling, redness, blistering, or irritation develops, seek medical assistance (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). The delayed effects note is particularly important given the skin sensitization hazard — an allergic reaction may not appear immediately but can develop over subsequent hours, especially in individuals previously sensitized to isothiazolone preservatives. **Eye contact**: If the product enters the eyes, flush immediately with water (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Seek medical advice in all cases of eye contamination (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Flush continuously for at least 15 minutes while holding the eyelids open to ensure thorough removal. The product isn't classified as an eye irritant, but the preservatives present can cause discomfort, and any foreign material in the eye warrants professional assessment. **Ingestion**: If the product is swallowed, rinse the mouth with water — do not induce vomiting (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Give a glass of water to drink. Never give anything by mouth to an unconscious patient (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). If vomiting occurs naturally, give additional water (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Seek medical advice for all ingestion incidents. The prohibition against inducing vomiting matters here — bringing up a paste-consistency material creates aspiration risk that could cause more serious complications than the ingestion itself. For treating physicians: treat symptomatically and remain alert to the fact that effects may be delayed (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). This alerts medical professionals to monitor patients beyond initial presentation, particularly for delayed allergic reactions to the isothiazolone preservatives. ## Spill management Accidental spills need a fast, methodical response. The product creates slippery conditions when spilt, so immediate cleanup is essential to prevent accidents (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). **Small spills**: Put on protective equipment to prevent skin and eye contact and avoid inhalation of vapours or dust (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Wipe up the product with absorbent materials such as clean rags or paper towels. Collect contaminated materials and seal them in properly labelled containers or drums for disposal (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). This handles minor cartridge leaks, dropped material during application, or small dispensing accidents cleanly and efficiently. **Large spills**: Clear the area of all unprotected personnel immediately (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). The slip hazard is real — securing the area prevents injuries from personnel walking through the spill. Wear full protective equipment to prevent skin and eye contact and inhalation of dust (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Work upwind or increase ventilation throughout cleanup (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Cover the spill with damp absorbent material — inert substances like sand or soil work well (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). The dampness binds the water-based product to the absorbent rather than allowing it to spread. Sweep or vacuum up the absorbed material, keeping dust generation to a minimum (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Collect all material and seal it in properly labelled containers or drums for disposal (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). If the spill reaches crops, sewers, or waterways, contact local emergency services immediately (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). The product is water-based, but the preservatives present environmental concerns in concentrated form in waterways. Regulatory authorities need to be informed of such releases to assess ecological impact and put appropriate mitigation in place. The product carries no assigned Dangerous Goods Initial Emergency Response Guide number (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf), confirming it doesn't require the emergency response protocols applicable to dangerous goods in transport incidents. ## Fire response No More Gaps Exterior is classified non-combustible (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf), but understanding fire response procedures remains important for any workplace or storage facility. The product carries no assigned Hazchem Code (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf), confirming it doesn't require the special fire-fighting or hazard identification protocols that apply to dangerous goods. If the product is involved in a fire, use water fog, fine water spray, alcohol-resistant foam, standard foam, dry agent (carbon dioxide), or dry chemical powder (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). The range of suitable extinguishing options reflects the product's compatibility with standard firefighting approaches — no special concerns exist around adverse reactions with common extinguishing agents. While the product itself is non-combustible, residual material remaining after evaporation of the aqueous component can burn if ignited (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Cartridges stored in a fire won't be a source of ignition or drive fire spread in their manufactured state. Only under sustained, intense fire conditions — sufficient to evaporate all water content — would the remaining polymeric material contribute to combustion. This is not a primary fire risk under normal storage or use conditions. ## Disposal considerations No More Gaps Exterior must be disposed of in accordance with local, regional, national, and international regulations (P501) (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf). Disposal regulations vary by jurisdiction and change over time — check current requirements in your area before disposing of any quantity of product or packaging. In Australia, disposal falls under state and territory environmental protection legislation. The product isn't classified as hazardous waste under transport regulations, but the presence of isothiazolone preservatives means it shouldn't go into ordinary household waste in large quantities. Small consumer quantities from fully used cartridges — with only residual product remaining — may be acceptable in household waste streams depending on local council regulations. Trade quantities and partially full cartridges generally require disposal through approved waste management contractors. The water-based formulation means the cured product itself is relatively inert, but uncured product must not be released directly into sewers, waterways, or onto soil where it could migrate into groundwater. The preservatives, while present at very low concentrations, are included specifically for their biocidal activity — in concentrated form, they present real environmental concerns. Check with local waste management authorities for specific disposal requirements in your area. Many areas run hazardous household waste collection days or operate dedicated facilities that accept construction and trade waste products. Trade users who need to demonstrate environmental compliance should maintain clear documentation of all disposal activity. ## References - SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf (canonical) --- ## Frequently Asked Questions What is Selleys No More Gaps Exterior: A flexible gap sealant for exterior use Is it suitable for interior use: No, formulated specifically for exterior use What is the small cartridge size: 130g What is the large cartridge size: 430g What is the product code for the 130g cartridge: 102092 What is the product code for the 430g cartridge: 101904 Is the formulation water-based: Yes, aqueous-based Does it require mixing before use: No, ready to use straight from the cartridge Does it require dilution: No What tool is needed to apply it: A standard caulking gun Is it flexible after curing: Yes, remains flexible after application Why does flexibility matter for exterior use: Temperature changes cause building materials to expand and contract Can it be used on timber: Yes Can it be used on fibre cement: Yes Can it be used on masonry: Yes Can it be used on metal substrates: Yes Is it a structural adhesive: No Is it an interior caulk: No Is it a decorative filler: No What is its primary purpose: Filling and sealing gaps in exterior building materials Is it suitable for window frames: Yes Is it suitable for door jambs: Yes Is it suitable for weatherboards: Yes Is it suitable for eaves: Yes Is it suitable for external trim work: Yes Is it suitable for expansion joints: Yes What chemical system preserves the product: Three isothiazolone biocides What is the first preservative: 1,2-Benzisothiazol-3(2H)-one (BIT), CAS 2634-33-5 What is the second preservative: 2-Methyl-2H-isothiazol-3-one (MIT), CAS 2682-20-4 What is the third preservative: 2-Octyl-2H-isothiazol-3-one (OIT), CAS 26530-20-1 What is the concentration of each isothiazolone preservative: Less than 0.05% by weight each What is the combined preservative concentration: Below 0.15% by weight Why are preservatives included: To prevent microbial growth during storage and after application What is the GHS hazard classification: Sensitisation, Skin, Category 1 What is the signal word: Warning What is the hazard statement code: H317 What does H317 mean: May cause an allergic skin reaction What causes the skin sensitization classification: Isothiazolone preservatives Does sensitization occur after a single exposure: No, requires repeated or prolonged contact Can sensitization develop without an initial reaction: Yes, early exposures may produce no reaction What are symptoms of allergic contact dermatitis: Redness, itching, swelling, or blistering Does everyone who contacts the product develop a reaction: No, varies by individual Is it classified as a dangerous good for transport: No Does it require special shipping documentation: No Is it assigned a Poison Schedule in Australia: No Is the product combustible as dispensed: No, classified non-combustible Can dried residual product burn: Yes, if ignited after water evaporates What is the Hazchem Code: Not assigned What PPE is required for skin protection: Protective gloves and protective clothing What PPE is required for eye protection: Eye and face protection What glove material is recommended: Nitrile rubber Are nitrile gloves suitable for prolonged contact: Users must make a final assessment based on conditions What is precautionary statement P261: Avoid breathing dust, fume, gas, mist, vapours or spray What is precautionary statement P272: Contaminated work clothing must not leave the workplace Must contaminated clothing be washed before reuse: Yes Should hands be washed before eating or drinking: Yes What is the cleanup method before curing: Water only, no solvents needed What is the cleanup method after curing begins: Water becomes progressively less effective What is the first aid response for skin contact: Remove clothing and flush skin with running water Can skin contact effects be delayed: Yes, reactions may develop hours after exposure What is the first aid response for eye contact: Flush immediately with water How long should eyes be flushed: At least 15 minutes Should medical advice be sought for eye contact: Yes, in all cases What is the first aid response for ingestion: Rinse mouth with water, do not induce vomiting Why should vomiting not be induced after ingestion: Risk of aspiration of paste-consistency material What is the first aid response for inhalation: Remove person from exposure, allow to rest What is the Poisons Information Centre number in Australia: 131 126 What is the Poisons Information Centre number in New Zealand: 0800 764 766 How should small spills be cleaned: Wipe with absorbent materials such as clean rags or paper towels How should large spills be covered: With damp absorbent material such as sand or soil Does a spill create a slip hazard: Yes Should authorities be contacted if product reaches waterways: Yes, contact local emergency services immediately What extinguishing agents are suitable: Water fog, foam, dry agent, or dry chemical powder What storage temperature condition is required: Cool storage, away from heat sources What storage light condition is required: Out of direct sunlight What storage moisture condition is required: Dry place What ventilation is required for storage: Well-ventilated place Should containers be stored upright: Yes Should containers be kept closed when not in use: Yes Should product be stored near food: No, keep away from foodstuffs How should used cartridges be disposed of: In accordance with local, regional, and national regulations Can uncured product be released into waterways: No Can uncured product be released into sewers: No Is the cured product relatively inert: Yes Is it assigned a Dangerous Goods Emergency Response Guide number: No --- --- ## Label Facts Summary > **Disclaimer:** All facts and statements below are general product information, not professional advice. Consult relevant experts for specific guidance. ### Verified label facts **Product identity** - Product name: Selleys No More Gaps Exterior - Commercial name: No More Gaps Exterior - Intended use: Gap sealant, formulated specifically for exterior use - Not classified as: structural adhesive, interior caulk, or decorative filler **Pack sizes and product codes** - 130g cartridge — Product Code 102092 - 430g cartridge — Product Code 101904 **Formulation** - Base: Aqueous (water-based) - Ready to use: No mixing, no dilution required - Application tool: Standard caulking gun - Cleanup before curing: Water only, no solvents required **Declared ingredients / composition** - 1,2-Benzisothiazol-3(2H)-one (BIT) — CAS 2634-33-5 — less than 0.05% by weight - 2-Methyl-2H-isothiazol-3-one (MIT) — CAS 2682-20-4 — less than 0.05% by weight - 2-Octyl-2H-isothiazol-3-one (OIT) — CAS 26530-20-1 — less than 0.05% by weight - Combined isothiazolone preservative concentration: below 0.15% by weight - Remaining ingredients: confirmed non-hazardous or below reporting limits **Hazard classification (GHS 7 — Safe Work Australia)** - Classification: Sensitisation, Skin, Category 1 - Signal word: Warning - Hazard statement: H317 — May cause an allergic skin reaction - Fire classification: Non-combustible as dispensed; residual dried material can burn if ignited **Regulatory status** - Transport classification (Australia ADG / New Zealand NZS5433): Not a dangerous good - Australian Poison Schedule: Not assigned - Hazchem Code: Not assigned - Dangerous Goods Emergency Response Guide number: Not assigned **Precautionary statements (GHS)** - P102: Keep out of reach of children - P103: Read and follow all instructions - P261: Avoid breathing dust, fume, gas, mist, vapours or spray - P272: Contaminated work clothing must not leave the workplace - P280: Wear protective gloves, protective clothing, and eye/face protection - P362+P364: Remove and wash contaminated clothing before reuse - P501: Dispose of in accordance with local, regional, national, and international regulations **Personal protective equipment** - Required: Protective gloves, protective clothing, eye/face protection - Recommended glove material: Nitrile rubber (suitable for intermittent contact; final assessment required by user based on conditions) - First aid responder PPE: Safety shoes, overalls, gloves, safety glasses **First aid responses** - Skin contact: Remove contaminated clothing; flush skin and hair with running water; seek medical assistance if swelling, redness, blistering, or irritation develops; effects may be delayed - Eye contact: Flush immediately with water for at least 15 minutes; seek medical advice in all cases - Ingestion: Rinse mouth with water; do not induce vomiting; give a glass of water; never give anything by mouth to an unconscious patient; seek medical advice - Inhalation: Remove person from exposure; remove contaminated clothing; allow to rest in comfortable position; keep warm; seek medical advice if effects persist - Poisons Information Centre — Australia: 131 126 - Poisons Information Centre — New Zealand: 0800 764 766 **Spill response** - Small spills: Wipe up with absorbent materials (clean rags or paper towels); seal in labelled containers for disposal - Large spills: Clear area; wear full PPE; cover with damp absorbent material (sand or soil); sweep or vacuum; seal in labelled containers for disposal; work upwind or increase ventilation - Spill creates slip hazard: Yes - If product reaches crops, sewers, or waterways: Contact local emergency services immediately **Fire response** - Suitable extinguishing agents: Water fog, fine water spray, alcohol-resistant foam, standard foam, dry agent (carbon dioxide), dry chemical powder **Storage requirements** - Temperature: Cool, away from heat sources and ignition - Light: Out of direct sunlight - Moisture: Dry place - Ventilation: Well-ventilated - Orientation: Store containers upright - Closure: Keep containers closed when not in use; check regularly for spills - Segregation: Keep away from foodstuffs; store away from incompatible materials per SDS Section 10 **Disposal** - Must comply with local, regional, national, and international regulations (P501) - Uncured product must not be released into sewers, waterways, or soil - Cured product is relatively inert **Source documentation** - SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf (canonical SDS) --- ### General product claims - Remains flexible after application, moving with the gap rather than against it - Flexibility keeps the seal intact through every season - Purpose-built for temperature swings that drive movement in timber, fibre cement, masonry, and metal substrates - Suitable for trade professionals running multiple exterior sealing jobs and for homeowners tackling maintenance - Suitable application areas cited: weatherboards, window frames, door jambs, eaves, external trim work, expansion joints, junctions between dissimilar materials - Water-based chemistry delivers practical advantages: low VOC emissions, no significant odour concerns in occupied spaces - Isothiazolone preservatives are industry-standard and proven effective at very low concentrations - Polymeric binders deliver flexibility and adhesion; fillers build body and gap-filling capacity - Cured sealant forms a tough, flexible seal - Get the application right and the seal performs for the long term ## Related Products & Brand Context **No More Gaps Exterior** sits within Selleys' gap filler range, categorised under **Home & Garden > Caulking & Gap Fillers**. Selleys is an Australian home maintenance brand with a broad product portfolio spanning sealants, adhesives, fillers, and cleaning products. The "No More Gaps" naming signals that this product belongs to a dedicated gap-filling line within that portfolio — one specifically extended here for exterior use, distinguishing it from other formulations in the Selleys gap filler range that may be intended for interior or mixed-use applications. Within the gap filler category, the defining characteristic of this product is its weather and UV resistance, combined with a polymer system that keeps the cured filler flexible rather than rigid. This positions it clearly for outdoor substrates that expand and contract with temperature — such as weatherboards, aluminium window frames meeting timber, door frames, and eaves — where a hard-setting filler would be likely to crack over seasonal cycles. Its water-based formulation also makes it straightforward to clean up before curing, which is a practical consideration for exterior work where access and clean-up conditions are less controlled than indoors. From a use-case standpoint, anyone applying No More Gaps Exterior is likely to need complementary products from adjacent categories. Surface preparation items — such as primers for porous substrates or cleaning solutions to degrease frames before application — would typically be used beforehand to ensure adhesion. A standard caulking gun is required for the 430g cartridge size, and masking tape is commonly used alongside gap fillers to achieve clean, straight sealant lines on exterior trims. Paint compatibility is also worth considering, as the product's white finish may need to be overcoated to match exterior colour schemes. The knowledge graph references Selleys guides covering both gap fillers and bathroom sealants, suggesting the brand maintains a range of application-specific sealant products. No More Gaps Exterior is the outdoor-rated member of that gap-filler family, engineered specifically for the harsher conditions typical of Australian exterior environments.