No More Gaps Exterior - Flexible Gap Filler by Selleys

AI Summary

Product: Selleys No More Gaps Exterior vs. No More Gaps Timber Floors Brand: Selleys Category: Acrylic gap sealant Primary Use: Two purpose-specific acrylic gap sealants — one built for outdoor weather exposure, one for interior timber flooring.

Quick Facts

• Best For: No More Gaps Exterior: outdoor cladding, masonry, window perimeters; No More Gaps Timber Floors: floorboard gaps, skirting joints, timber stair repairs
• Key Benefit: Exterior uses a three-preservative system (BIT, MIT, OIT) for outdoor microbial resistance; Timber Floors offers four timber-matched colours (Baltic, Hardwood, Jarrah, Walnut) for invisible interior repairs
• Form Factor: Paste/sealant in cartridge — Exterior in 130g or 430g; Timber Floors in 380g only
• Application Method: Cartridge-applied with nitrile gloves and eye protection required for both

Common Questions This Guide Answers

1. What is the difference between No More Gaps Exterior and No More Gaps Timber Floors? → Exterior is formulated for outdoor weather exposure with OIT-inclusive preservatives; Timber Floors is formulated for interior wood flooring with colour-matched options and no OIT.
2. What colours does No More Gaps Timber Floors come in? → Baltic, Hardwood, Jarrah, and Walnut — all 380g.
3. Do the safety datasheets confirm cure time, UV resistance, or movement tolerance? → No — those specifications are absent from the supplied GHS safety datasheets; full technical datasheets or direct contact with Selleys is required.

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Product Guide: Selleys No More Gaps Exterior vs. No More Gaps Timber Floors

Introduction

This guide compares two gap-filling products from Selleys: No More Gaps Exterior and No More Gaps Timber Floors. Both are acrylic-based gap sealants built for different jobs — one for outdoor exposure, the other for interior timber flooring. The datasheets referenced here are safety (GHS) documents, not full technical specifications. They confirm product identity, chemical composition, and safety requirements, but say nothing about cure time, movement accommodation, or substrate adhesion. This comparison sticks to facts drawn directly from those safety datasheets, clearly flagging where technical specifications are missing and calling out the key differences in formulation, packaging, and intended use. For specification-grade decisions, get the full technical datasheets or contact Selleys directly.

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At-a-glance comparison

Dimension	No More Gaps Exterior	No More Gaps Timber Floors
Intended use	Gap sealant (SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf)	Gap sealant (SELLEYS_NO_MORE_GAPS_TIMBER_FLOORS-AUS_GHS.pdf)
Weather/exposure rating	Not specified in supplied safety datasheet; product name indicates outdoor use	Not specified in supplied safety datasheet; product name indicates interior use
Substrate	Not specified in supplied safety datasheet	Not specified in supplied safety datasheet; product name indicates timber floors
UV/movement tolerance	Not specified in supplied safety datasheet	Not specified in supplied safety datasheet
Pack sizes	130g, 430g (per SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf)	380g only (per SELLEYS_NO_MORE_GAPS_TIMBER_FLOORS-AUS_GHS.pdf)
Colour variants	Not specified in supplied safety datasheet	Baltic, Hardwood, Jarrah, Walnut (per SELLEYS_NO_MORE_GAPS_TIMBER_FLOORS-AUS_GHS.pdf)
Preservative system	BIT, MIT, OIT — each <0.05% w/w (per SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf)	BIT, MBIT — each <0.05% w/w (per SELLEYS_NO_MORE_GAPS_TIMBER_FLOORS-AUS_GHS.pdf)
Hazard classification	Skin sensitization Category 1 (H317) per both datasheets	Skin sensitization Category 1 (H317) per both datasheets

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Weather/exposure rating

No More Gaps Exterior

The safety datasheet identifies this product as "No More Gaps Exterior" — a name that points clearly to outdoor applications. The SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf confirms the material is non-combustible and should be stored out of direct sunlight, but it includes no weatherability data, UV resistance ratings, or temperature cycling specifications. For quantified performance data on rain resistance, freeze-thaw cycling, or UV degradation, consult the full technical datasheet or contact Selleys directly.

No More Gaps Timber Floors

The SELLEYS_NO_MORE_GAPS_TIMBER_FLOORS-AUS_GHS.pdf identifies this product as a Timber Floors sealant, built for protected indoor environments. The datasheet carries no reference to outdoor exposure, weatherability, or UV resistance. Storage instructions match those of the Exterior variant (cool, dry, well-ventilated, away from sunlight), but these govern shelf stability rather than in-service durability.

Comparison: The Exterior formulation is built for external weather exposure. The Timber Floors variant is designed for the controlled conditions of interior spaces. Neither safety datasheet provides quantifiable exposure ratings. Users who need specific weatherability data — such as ASTM G154 UV hours or water immersion resistance — must source full technical datasheets or speak with Selleys directly.

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Substrate

No More Gaps Timber Floors

The product name makes the application clear: timber floors. The SELLEYS_NO_MORE_GAPS_TIMBER_FLOORS-AUS_GHS.pdf reinforces this with four colour variants — Baltic, Hardwood, Jarrah, and Walnut — matched to common Australian timber species. This confirms both the formulation and pigmentation are purpose-built for wood substrates. The safety datasheet does not specify adhesion test results, substrate preparation requirements, or compatibility with sealed versus unsealed timber; full technical documentation covers those details.

No More Gaps Exterior

The SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf does not identify specific substrates. The Exterior designation points to compatibility with masonry, weatherboards, and other outdoor building materials, but the safety document includes no adhesion data, priming requirements, or lists of compatible and incompatible surfaces.

Comparison: The Timber Floors variant is purpose-built for wood flooring, with colour-matching options that deliver clean visible results. The Exterior product's substrate scope requires confirmation through technical documentation. For interior timber gaps, No More Gaps Timber Floors is the right tool. For external cladding, masonry, or mixed outdoor materials, No More Gaps Exterior is the product to reach for — verify substrate compatibility through the full technical datasheet.

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UV/movement tolerance

Neither the SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf nor the SELLEYS_NO_MORE_GAPS_TIMBER_FLOORS-AUS_GHS.pdf documents UV stability, Shore A hardness, elongation-at-break, or joint movement accommodation (typically expressed as ±X%). Both datasheets confirm the materials are non-combustible and that residual material can burn after evaporation of the aqueous component — confirming an acrylic-water base — but physical flexibility and UV ageing performance are not covered in safety documentation.

Comparison: The Exterior product name points to UV resistance suited to outdoor service. The Timber Floors variant operates in interior conditions where UV exposure is indirect at most. Movement tolerance — critical for timber expansion and contraction as well as building movement — cannot be quantified from the supplied documents alone. Users requiring specific movement class ratings, such as ISO 11600 classifications, must source full technical datasheets from Selleys.

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Application

No More Gaps Exterior

The SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf provides safety-focused application guidance:

• Handling: Avoid eye contact and skin contact. Avoid inhalation of dust.
• PPE: Wear protective gloves and protective clothing including eye and face protection. Nitrile gloves are recommended for intermittent contact.
• Spill cleanup: Wipe small spills with an absorbent rag. For larger spills, cover with damp absorbent material and sweep or vacuum.

Application temperature, cure time, tooling window, paintability, and cleanup solvent are not specified in the safety document. Full technical datasheets carry these details.

No More Gaps Timber Floors

The SELLEYS_NO_MORE_GAPS_TIMBER_FLOORS-AUS_GHS.pdf provides the same safety-based application guidance:

• Handling: Avoid eye contact and skin contact. Avoid inhalation of dust.
• PPE: Protective gloves (nitrile), clothing, and eye and face protection.
• Response: If on skin, wash with plenty of water and soap. If skin irritation or rash occurs, get medical advice and attention.

Like the Exterior variant, this datasheet does not cover working time, joint depth and width ratios, primer requirements, or post-application foot traffic timings.

Comparison: Safety protocols during application are identical for both products. The Timber Floors variant includes an additional precautionary statement (P302+P352, P333+P313) for skin contact response, reflecting labelling emphasis rather than a performance difference. Both products contain skin sensitisers (Category 1, H317), making glove use mandatory for both. Application-specific guidance — such as whether the Timber Floors product requires gap pre-cleaning or whether the Exterior product needs primer on porous substrates — is available through full technical documentation.

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Pack sizes and colour options

No More Gaps Exterior

The SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf confirms two pack sizes:

• 130g (product code 102092, barcode 9300697129819)
• 430g (product code 101904, barcode 9300697125668)

No colour variants are listed in the safety datasheet.

No More Gaps Timber Floors

The SELLEYS_NO_MORE_GAPS_TIMBER_FLOORS-AUS_GHS.pdf lists a single size (380g) across four timber-matched colours:

• Baltic (codes 100473, 101906, N2190281-UNIT; barcode 9300697125484)
• Hardwood (codes 100472, 101905, N2190282-UNIT; barcode 9300697125477)
• Jarrah (codes 100474, 101907, N2190283-UNIT; barcode 9300697125491)
• Walnut (codes 100475, 101908; barcode 9300697125507)

Comparison: The Exterior product gives you a choice of pack size — 130g for smaller repairs, 430g for larger jobs. The Timber Floors variant is standardised at 380g but delivers strong colour matching for seamless integration with Australian timber species. Where the Exterior product has no specified colour variants and suits applications where the filler will be painted over, the Timber Floors colour range is built specifically for visible interior flooring repairs where colour matching matters.

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Chemical composition and safety

No More Gaps Exterior

The SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf lists three biocidal preservatives:

1. 1,2-Benzisothiazol-3(2H)-one (BIT) — CAS 2634-33-5, <0.05% w/w
2. 2-Methyl-2H-isothiazol-3-one (MIT) — CAS 2682-20-4, <0.05% w/w
3. 2-Octyl-2H-isothiazol-3-one (OIT) — CAS 26530-20-1, <0.05% w/w

This three-preservative system includes OIT, widely used in exterior coatings for mould and algae resistance — an important advantage in exposed outdoor conditions.

No More Gaps Timber Floors

The SELLEYS_NO_MORE_GAPS_TIMBER_FLOORS-AUS_GHS.pdf lists two preservatives:

1. 1,2-Benzisothiazol-3(2H)-one (BIT) — CAS 2634-33-5, <0.05% w/w
2. 2-Methyl-1,2-benzisothiazol-3(2H)-one (MBIT) — CAS 2527-66-4, <0.05% w/w

Both products share BIT but differ in secondary preservatives. The Timber Floors formulation drops OIT — the broad-spectrum exterior fungicide — in favour of MBIT, which suits the lower microbial challenge of interior environments.

Comparison: Both formulations carry the same H317 skin sensitisation hazard and require identical PPE: nitrile gloves and eye protection. The Exterior product's three-preservative system, including OIT, delivers stronger microbiological protection for damp outdoor environments. The Timber Floors preservative system is appropriate for climate-controlled interior spaces where extreme UV, water immersion, and heavy fungal growth are not factors. Anyone with isothiazolinone sensitivities should avoid both products. Neither datasheet discloses a preservative-free alternative — contact Selleys directly for guidance.

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When to choose No More Gaps Exterior

Choose this product when:

1. Filling gaps in outdoor building elements — The product name and OIT-inclusive preservative system (per SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf) point to strong performance on exterior cladding, window perimeters, masonry joints, and other weather-exposed applications. Confirm full weatherability data through the technical datasheet before specification-grade use.

2. Pack size flexibility matters — The 130g cartridge handles small repairs and touch-ups. The 430g cartridge suits larger projects. This choice is not available with the 380g-only Timber Floors variant.

3. The finish will be painted over — Without specified colour matching, this product suits applications where the gap filler goes under paint or where colour matching to the substrate is not a requirement.

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When to choose No More Gaps Timber Floors

Choose this product when:

1. Filling gaps in timber flooring — The product name, purpose-built formulation, and four timber-species colour options (Baltic, Hardwood, Jarrah, Walnut per SELLEYS_NO_MORE_GAPS_TIMBER_FLOORS-AUS_GHS.pdf) make this the clear choice for floorboard gaps, skirting joints, and timber stair repairs.

2. Invisible repairs are the goal — Four colour options deliver near-invisible results when matched to timber species. No post-application staining or painting required.

3. The environment is indoor and climate-controlled — The targeted preservative system (BIT and MBIT, without the exterior-focused OIT) is built for interior spaces where extreme UV, water immersion, and heavy fungal growth are not factors.

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Summary

No More Gaps Exterior and No More Gaps Timber Floors are both acrylic gap sealants from Selleys. Both carry identical skin sensitisation hazards (H317) and handling requirements (nitrile gloves, eye protection). The supplied safety datasheets confirm that the Exterior variant uses a three-preservative system (BIT, MIT, OIT) built for outdoor microbial challenge, and is available in 130g and 430g packs. The Timber Floors variant uses a two-preservative blend (BIT, MBIT), comes in a single 380g size, and offers four timber-matched colours — Baltic, Hardwood, Jarrah, and Walnut — for interior flooring applications.

The practical trade-off is straightforward: the Exterior product's formulation and name point to weather durability for outdoor gaps, but the supplied datasheet includes no UV resistance, movement tolerance, or substrate compatibility data. The Timber Floors product is built for interior wood flooring with colour matching, and is not intended for external exposure. Neither datasheet provides the technical performance data — cure time, elongation, adhesion strength — needed for specification-grade project selection. Get the full technical datasheets or contact Selleys directly to confirm suitability for your specific gap width, substrate, and exposure conditions.

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Frequently Asked Questions

What is No More Gaps Exterior: A gap sealant designed for outdoor applications

What is No More Gaps Timber Floors: A gap sealant designed for interior timber flooring

Who manufactures both products: Selleys

What base chemistry do both products use: Acrylic-based formulation

Is No More Gaps Exterior acrylic-based: Yes

Is No More Gaps Timber Floors acrylic-based: Yes

What is the intended environment for No More Gaps Exterior: Outdoor/exterior applications

What is the intended environment for No More Gaps Timber Floors: Indoor/interior applications

Can No More Gaps Timber Floors be used outdoors: No, it is designed for interior use only

Can No More Gaps Exterior be used on timber floors: Not recommended; use the Timber Floors variant for that

What pack sizes does No More Gaps Exterior come in: 130g and 430g

What pack size does No More Gaps Timber Floors come in: 380g only

Does No More Gaps Exterior come in a 130g size: Yes

Does No More Gaps Exterior come in a 430g size: Yes

Does No More Gaps Timber Floors come in multiple sizes: No, only 380g

What colour options does No More Gaps Timber Floors offer: Baltic, Hardwood, Jarrah, and Walnut

Does No More Gaps Timber Floors come in a Baltic colour: Yes

Does No More Gaps Timber Floors come in a Hardwood colour: Yes

Does No More Gaps Timber Floors come in a Jarrah colour: Yes

Does No More Gaps Timber Floors come in a Walnut colour: Yes

How many colour variants does No More Gaps Timber Floors have: Four

Does No More Gaps Exterior come in colour variants: Not specified in the safety datasheet

Is No More Gaps Exterior suitable for painting over: Yes, colour matching is not a specified feature

Does No More Gaps Timber Floors require painting after application: No, colour-matched options provide invisible results

What preservatives does No More Gaps Exterior contain: BIT, MIT, and OIT

What preservatives does No More Gaps Timber Floors contain: BIT and MBIT

Do both products contain BIT: Yes

Does No More Gaps Exterior contain OIT: Yes

Does No More Gaps Timber Floors contain OIT: No

What is OIT used for in sealants: Broad-spectrum exterior mould and algae resistance

Does No More Gaps Timber Floors contain MIT: No

Does No More Gaps Exterior contain MIT: Yes

Does No More Gaps Timber Floors contain MBIT: Yes

Does No More Gaps Exterior contain MBIT: No

What concentration is each preservative in both products: Less than 0.05% w/w

Why does No More Gaps Exterior include OIT: For enhanced microbiological protection in outdoor environments

Why does No More Gaps Timber Floors omit OIT: Interior environments have lower microbial challenge

What is the hazard classification for No More Gaps Exterior: Skin sensitisation Category 1 (H317)

What is the hazard classification for No More Gaps Timber Floors: Skin sensitisation Category 1 (H317)

Do both products share the same hazard classification: Yes, both are H317 skin sensitisation Category 1

Are both products safe to handle without gloves: No, gloves are mandatory for both

What type of gloves are recommended for both products: Nitrile gloves

Is eye protection required when using No More Gaps Exterior: Yes

Is eye protection required when using No More Gaps Timber Floors: Yes

Should skin contact with either product be avoided: Yes

What should you do if No More Gaps Timber Floors contacts skin: Wash with plenty of water and soap

What should you do if skin irritation occurs after contact: Seek medical advice and attention

Should inhalation of dust be avoided for both products: Yes

Is No More Gaps Exterior combustible: No, it is non-combustible

Is No More Gaps Timber Floors combustible: No, it is non-combustible

Can residual dried material from either product burn: Yes, after evaporation of the aqueous component

What does the burnability of dried residue confirm about the base: Acrylic-water base

How should No More Gaps Exterior be stored: Cool, dry, well-ventilated area away from direct sunlight

How should No More Gaps Timber Floors be stored: Cool, dry, well-ventilated area away from sunlight

Are storage requirements the same for both products: Yes

Do the datasheets specify cure time for either product: No

Do the datasheets specify movement accommodation for either product: No

Do the datasheets specify UV resistance ratings: No

Do the datasheets specify adhesion strength: No

Do the datasheets specify substrate compatibility lists: No

Do the datasheets specify application temperature range: No

Do the datasheets specify tooling window or working time: No

Do the datasheets specify primer requirements: No

Do the datasheets specify foot traffic timing after application: No

What type of documents are the referenced datasheets: Safety (GHS) documents, not full technical specifications

Where can full technical performance data be obtained: From Selleys directly or full technical datasheets

Is No More Gaps Timber Floors suitable for floorboard gaps: Yes

Is No More Gaps Timber Floors suitable for skirting joints: Yes

Is No More Gaps Timber Floors suitable for timber stair repairs: Yes

Is No More Gaps Exterior suitable for exterior cladding gaps: Yes, based on product name and formulation

Is No More Gaps Exterior suitable for window perimeter gaps: Yes, based on product name and formulation

Is No More Gaps Exterior suitable for masonry joints: Yes, based on product name and formulation

Are people with isothiazolinone sensitivities safe to use either product: No, both contain isothiazolinones

Does Selleys offer a preservative-free alternative: Not disclosed by manufacturer

How do I confirm substrate compatibility for No More Gaps Exterior: Obtain full technical datasheet or contact Selleys

How do I confirm movement tolerance ratings: Obtain full technical datasheet or contact Selleys

What is the product code for No More Gaps Exterior 130g: 102092

What is the barcode for No More Gaps Exterior 130g: 9300697129819

What is the product code for No More Gaps Exterior 430g: 101904

What is the barcode for No More Gaps Exterior 430g: 9300697125668

What is the barcode for No More Gaps Timber Floors Baltic: 9300697125484

What is the barcode for No More Gaps Timber Floors Hardwood: 9300697125477

What is the barcode for No More Gaps Timber Floors Jarrah: 9300697125491

What is the barcode for No More Gaps Timber Floors Walnut: 9300697125507

How should small spills of No More Gaps Exterior be cleaned: Wipe with an absorbent rag

How should large spills of No More Gaps Exterior be cleaned: Cover with damp absorbent material, then sweep or vacuum

Which product is better for invisible floor repairs: No More Gaps Timber Floors

Which product is better for large outdoor gap-filling jobs: No More Gaps Exterior 430g

Does No More Gaps Exterior offer flexible pack sizing: Yes, 130g for small repairs and 430g for larger jobs

Are the safety handling protocols different between the two products: No, they are identical

Does No More Gaps Timber Floors have an additional skin contact precautionary statement: Yes, P302+P352 and P333+P313

Does the additional precautionary statement indicate a performance difference: No, it reflects labelling emphasis only

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Label Facts Summary

Disclaimer: All facts and statements below are general product information sourced from Selleys safety (GHS) datasheets, not full technical specifications or professional advice. Performance data not present in the supplied datasheets must be confirmed via full technical documentation or directly with Selleys.

Verified Label Facts

Product Identity

• No More Gaps Exterior: acrylic-based gap sealant (source: SELLEYS_NO_MORE_GAPS_EXTERIOR-AUS_GHS.pdf)
• No More Gaps Timber Floors: acrylic-based gap sealant (source: SELLEYS_NO_MORE_GAPS_TIMBER_FLOORS-AUS_GHS.pdf)
• Manufacturer: Selleys

Pack Sizes and Product Codes

• No More Gaps Exterior 130g — product code 102092, barcode 9300697129819
• No More Gaps Exterior 430g — product code 101904, barcode 9300697125668
• No More Gaps Timber Floors: single size, 380g only

Colour Variants — No More Gaps Timber Floors

• Baltic — codes 100473, 101906, N2190281-UNIT; barcode 9300697125484
• Hardwood — codes 100472, 101905, N2190282-UNIT; barcode 9300697125477
• Jarrah — codes 100474, 101907, N2190283-UNIT; barcode 9300697125491
• Walnut — codes 100475, 101908; barcode 9300697125507
• No More Gaps Exterior: no colour variants specified in safety datasheet

Chemical Composition — No More Gaps Exterior

• 1,2-Benzisothiazol-3(2H)-one (BIT) — CAS 2634-33-5, <0.05% w/w
• 2-Methyl-2H-isothiazol-3-one (MIT) — CAS 2682-20-4, <0.05% w/w
• 2-Octyl-2H-isothiazol-3-one (OIT) — CAS 26530-20-1, <0.05% w/w

Chemical Composition — No More Gaps Timber Floors

• 1,2-Benzisothiazol-3(2H)-one (BIT) — CAS 2634-33-5, <0.05% w/w
• 2-Methyl-1,2-benzisothiazol-3(2H)-one (MBIT) — CAS 2527-66-4, <0.05% w/w

Hazard Classification (both products)

• Skin sensitisation Category 1, H317 (per both datasheets)
• Both products are non-combustible
• Dried residual material can burn after evaporation of the aqueous component (confirms acrylic-water base)

PPE and Handling Requirements (both products)

• Nitrile gloves required
• Eye and face protection required
• Protective clothing required
• Avoid skin contact, eye contact, and inhalation of dust
• No More Gaps Timber Floors carries additional precautionary statements P302+P352 and P333+P313 (wash skin with water and soap; seek medical advice if irritation or rash occurs)

Spill Response — No More Gaps Exterior

• Small spills: wipe with absorbent rag
• Large spills: cover with damp absorbent material, then sweep or vacuum

Storage Requirements (both products)

• Store in cool, dry, well-ventilated area away from direct sunlight

Data Confirmed Absent from Supplied Safety Datasheets (both products)

• Cure time: not specified by manufacturer
• Tooling window / working time: not specified by manufacturer
• UV resistance ratings: not specified by manufacturer
• Movement accommodation / joint movement class: not specified by manufacturer
• Elongation-at-break / Shore A hardness: not specified by manufacturer
• Adhesion strength: not specified by manufacturer
• Substrate compatibility lists: not specified by manufacturer
• Primer requirements: not specified by manufacturer
• Application temperature range: not specified by manufacturer
• Post-application foot traffic timing: not specified by manufacturer
• Weatherability data (e.g., ASTM G154, freeze-thaw cycling): not specified by manufacturer

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General Product Claims

• No More Gaps Exterior is built for outdoor weather exposure based on product name and OIT-inclusive preservative system
• No More Gaps Timber Floors is purpose-built for interior timber flooring based on product name and colour variants matched to Australian timber species
• OIT in the Exterior formulation provides enhanced microbiological protection for damp, outdoor environments
• MBIT in the Timber Floors formulation suits the lower microbial challenge of interior environments
• Timber Floors colour variants deliver near-invisible results when matched to timber species
• No More Gaps Exterior 130g cartridge suits small repairs; 430g cartridge suits larger projects
• No More Gaps Exterior is recommended where gap filler will be painted over or colour matching is not a priority
• No More Gaps Timber Floors is suitable for floorboard gaps, skirting joints, and timber stair repairs
• No More Gaps Exterior is suitable for exterior cladding, window perimeters, and masonry joints
• Persons with isothiazolinone sensitivities should avoid both products
• No preservative-free alternative is disclosed; contact Selleys directly for guidance
• The additional precautionary statement on No More Gaps Timber Floors reflects labelling emphasis, not a performance difference between the two products
• Selleys is described as a heritage brand with 80+ years of performance history (not verifiable from supplied datasheets)

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Related Products & Brand Context

No More Gaps Exterior sits within Selleys' No More Gaps range, a family of purpose-built acrylic gap fillers designed to address distinct sealing scenarios rather than offering a single all-purpose product. The closest sibling covered in this guide is No More Gaps Timber Floors, which targets interior timber surfaces such as tongue and groove flooring, hardwood boards, skirting boards, and architraves. Both products share the same parent range and brand, but their formulations diverge significantly based on where and how they are used.

Selleys is an Australian sealant and adhesive brand with a broad catalogue spanning gap fillers, adhesives, putties, and surface preparation products. Within that catalogue, the No More Gaps range occupies the caulking and gap filler category, sitting under the broader Home & Garden classification. No More Gaps Exterior is positioned as the outdoor-specific entry in this range — formulated with a unique polymer system and titanium compound to handle UV exposure and harsh Australian weather conditions, and protected against microbial growth via a three-preservative system (BIT, MIT, OIT). This makes it the appropriate choice when the gap is on an exterior surface such as weatherboards, eaves, door frames, or exterior window surrounds, rather than an interior one.

What separates No More Gaps Timber Floors from its sibling is the inclusion of real wood fibres in its formulation, which allows it to be sanded, stained, and varnished to blend with surrounding timber. It is available in specific timber-matched colour variants — Jarrah, Hardwood, Walnut, and Baltic — making it a finishing product as much as a sealing one. No More Gaps Exterior carries none of these aesthetic features; its priority is weatherproofing and long-term flexibility outdoors.

Someone using No More Gaps Exterior would typically also need a caulking gun for application, as the product is supplied in a cartridge format. Surface preparation — cleaning and drying the substrate before application — is also an expected adjacent step, and Selleys' broader range includes surface cleaners suited to that task. Buyers tackling exterior renovation projects may also find themselves considering Selleys' other exterior sealants or primers depending on the specific surface material involved.

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