Comparing Selleys No More Cracks Exterior Powder Filler, Selleys No More Cracks Exterior Wood Filler - 450g and Selleys No More Cracks Interior Powder Filler - 1kg product guide

AI Summary

Replace all references to 'Selleys No More Cracks Exterior Wood Filler (450g)' in the Related Products section with 'Selleys No More Cracks RTU Plaster Filler'. Update the description of this product to reflect that it is an interior plaster filler (ready-mixed, interior use, plaster substrate) rather than an exterior wood filler. Remove the claim that it is 'aimed at timber surfaces outdoors'. Category: Crack and hole repair fillers Primary Use: Repair of cracks and holes across exterior masonry, interior plaster, and general interior surfaces depending on product selected.

Quick Facts

• Best For: Exterior Powder — professionals and prepared DIYers repairing outdoor masonry; RTU Plaster Filler — quick cosmetic interior plaster repairs; Interior Powder — general indoor repairs across varied surfaces in residential, educational, or healthcare settings
• Key Benefit: Each product is purpose-matched to its environment: water-resistant cement-based performance outdoors, ready-mixed convenience for interior plaster, and a non-hazardous profile for broad interior use
• Form Factor: Exterior Powder and Interior Powder — dry powder requiring water mixing; RTU Plaster Filler — ready-mixed liquid paste
• Application Method: Powder products — mix with water then apply; RTU Plaster Filler — open and apply directly with no mixing required

Common Questions This Guide Answers

1. Which product is suitable for outdoor masonry repair? → Selleys No More Cracks Exterior Powder Filler — the only product of the three explicitly formulated as water resistant for cement, brick, and masonry
2. Which product is classified as non-hazardous? → Selleys No More Cracks Interior Powder Filler — not classified as hazardous per Safe Work Australia GHS 7, with no GHS labeling, locked storage, or SDS distribution requirements
3. What PPE is required for each product? → Exterior Powder Filler requires respirator, gloves, and eye protection; RTU Plaster Filler requires protective gloves; Interior Powder Filler recommends gloves, safety glasses, and a dust mask as basic precaution despite its non-hazardous classification

Selleys No More Cracks: Exterior Powder vs RTU Plaster vs Interior Powder

Selleys has been solving repair problems for over 80 years. This guide compares three products from the No More Cracks range: an Exterior Powder Filler built for masonry, a ready-mixed plaster filler (note: the supplied datasheet describes an RTU Plaster Filler, not the "Exterior Wood Filler" named in the comparison brief), and an Interior Powder Filler for general interior surfaces. All three repair cracks and holes, but they work differently — different substrates, different chemistry, different hazard profiles, different formats. Picking the right one means success on the first attempt.

At-a-glance comparison table

*The supplied datasheet describes "Selleys No More Cracks RTU Plaster Filler," not an exterior wood filler as named in the comparison brief.

Best-fit application

Exterior Powder Filler: masonry and brickwork

The Exterior Powder Filler is built for one purpose — professional results on cement, brick, and masonry. The datasheet describes it as a "water resistant filler for cement, brick and masonary." Its portland cement formulation, at 10-30% by weight, is designed for structural substrates that face weather and moisture daily. Standard interior fillers fail in these conditions; this one holds.

RTU Plaster Filler: interior plaster surfaces

The RTU Plaster Filler takes a different approach. Its datasheet identifies its use as "ready mixed interior filler for plaster" — smooth interior plaster walls, not rough outdoor masonry. The ready-mixed formulation is consistent and convenient for smaller cosmetic plaster repairs where speed matters more than volume.

Interior Powder Filler: general interior surfaces

The Interior Powder Filler covers the widest interior range of the three. Its datasheet states it is a "filler for patching holes and cracks in most interior surfaces" — broader than the plaster-specific RTU product, without venturing outdoors. It handles everyday interior repairs reliably.

The right call: Exterior brickwork needs the Exterior Powder — it is the only one of the three explicitly formulated for that environment. Interior plaster walls get better results with the RTU Plaster Filler and its application-specific chemistry. For varied interior repairs across multiple surface types, the Interior Powder has the widest reach.

Substrate compatibility

Exterior vs. interior environments

The Exterior Powder Filler's water-resistant formulation makes it the right tool for outdoor cement, brick, and masonry where moisture is constant. Neither the RTU Plaster Filler nor the Interior Powder Filler claims water resistance or exterior suitability — both datasheets are clear that these are interior products. Using them outside puts the repair at risk.

Substrate material range

The RTU Plaster Filler is purpose-built for plaster, making it the most focused of the three. The Interior Powder Filler's datasheet states compatibility with "most interior surfaces," giving it broader reach across drywall, wood, and other interior substrates beyond plaster. The Exterior Powder works on "cement, brick and masonary" — the right chemistry for outdoor mineral substrates, but not suited to softer interior materials.

The right call: Cement-based filler on interior plaster is a chemistry mismatch. Interior products used outdoors will not hold up against moisture. Match the product to the environment and substrate — that is how you get repairs that last.

Cure and drying behaviour

Powder products: mixing and water evaporation

Both the Exterior Powder Filler and Interior Powder Filler require water mixing before application. Cure time depends on water evaporation, which shifts with temperature, humidity, and application thickness. The Exterior Powder contains 10-30% portland cement per its SDS, meaning it cures through hydration over days. Gypsum-based interior powder fillers typically set faster. The datasheets do not list exact cure times, but understanding the chemistry helps with job planning.

RTU Plaster Filler: ready-mixed formulation

The RTU Plaster Filler arrives ready to use — no mixing, no guesswork, consistent formulation every time. Its SDS lists water-based ingredients including surfactants (alcohols, C12-C14, ethoxylated, 1-10%) and preservatives. It dries through water evaporation without the hydration cure that cement requires, making it a fast option for interior plaster repairs.

The right call: The RTU Plaster Filler gets you straight to work — open, apply, done. The powder products suit larger volumes and give you control over consistency. Neither datasheet lists specific dry-to-paint or full-cure times, so factor in site conditions and test on your specific repair before committing to a full application.

Gap size and depth

None of the three datasheets specify maximum gap size, depth limits, or minimum application thickness. This dimension cannot be compared from the supplied documents. Consult the technical data sheets or product packaging for fill depth guidance, or run site trials on deep repairs before proceeding.

Hazard classification and safety requirements

Exterior Powder Filler: high hazard, cement-based

The Exterior Powder Filler is classified as hazardous with a "Danger" signal word. It causes skin irritation (H315), serious eye damage (H318), and may cause respiratory irritation (H335) — all linked to its 10-30% portland cement content. The SDS is clear: avoid breathing dust (P261), wear full PPE, and store locked up (P405). Respiratory protection, gloves, eye protection, and good ventilation are required during mixing and application. Follow those requirements and you can handle this product safely and get strong performance on tough exterior jobs.

RTU Plaster Filler: moderate hazard, sensitisation risk

The RTU Plaster Filler carries a "Warning" signal word, a step below the Exterior Powder's hazard level. The risks are allergic skin reaction (H317) and serious eye irritation (H319), driven by preservatives including four isothiazolinones (BIT, CMIT, MIT, OIT at <0.05-0.1%). The SDS requires avoiding skin contact, wearing protective gloves, and keeping contaminated clothing out of the workplace (P272). This is a sensitisation concern, not a corrosive one — manage it with the right gloves and you are in control.

Interior Powder Filler: non-hazardous

The Interior Powder Filler is "not classified as hazardous according to criteria of Safe Work Australia GHS 7" — the datasheet is explicit on this. Its composition lists only "ingredients determined to be non-hazardous or below reporting limits." Basic PPE — gloves, safety glasses, a dust mask — is still worth wearing, but this product carries no GHS labelling requirements, no storage lock-up obligations, and no SDS distribution burden.

The right call: For residential DIY users or workplaces keeping hazardous materials to a minimum, the Interior Powder Filler removes GHS compliance overhead entirely. Professionals working outdoors on masonry accept the Exterior Powder's higher hazard profile as part of the job — the right PPE makes it manageable. The RTU Plaster Filler sits between the two but introduces a sensitisation risk the other products do not carry.

Pack sizes and format

The Exterior Powder Filler and Interior Powder Filler offer identical pack size options: 500g, 1kg, and 2kg. Scale your purchase to the project and get the economy of powder format at volume. The RTU Plaster Filler datasheet documents a 100g pack — significantly smaller, consistent with its ready-mixed format and focus on quick, targeted plaster touch-ups.

The right call: The powder products deliver better economy for larger projects — up to 2kg versus 100g — while the RTU Plaster Filler's compact size reflects its role as a precision, convenience-first solution for minor repairs. The larger powder packs also account for the volume added when mixing with water.

When to choose Selleys No More Cracks Exterior Powder Filler

This is your product when:

1. You are repairing exterior masonry, brickwork, or cement surfaces where water resistance is non-negotiable and the substrate is mineral-based. The datasheet's explicit "water resistant filler for cement, brick and masonary" positioning and portland cement formulation make this the clear choice for outdoor structural repairs — nothing else in the range matches it for this job.

2. You are working on large-scale repairs where the 2kg pack size and powder format deliver real economy. You have the right PPE — respirator, gloves, eye protection — and proper ventilation to handle the cement dust safely during mixing. This is a product for professionals and prepared DIYers who take the job seriously.

3. Your project calls for a cement-compatible filler that bonds with concrete or masonry through shared hydration chemistry. With 10-30% portland cement per the SDS, this product works with the same chemistry as the substrate it repairs.

When to choose Selleys No More Cracks RTU Plaster Filler

This is your product when:

1. You need quick cosmetic repairs on interior plaster walls and the ready-mixed format means you go straight to application — no mixing, no mess. The datasheet's "ready mixed interior filler for plaster" description targets exactly this scenario. Open it, use it, get clean visible results.

2. A small-volume, grab-and-go solution fits the job — the 100g pack per the datasheet is sized for minor plaster cracks or nail holes where convenience is the priority and per-gram cost takes a back seat to speed.

3. Your work environment calls for no powder dust but you can manage the sensitisation risk from isothiazolinone preservatives by wearing gloves as the SDS requires (H317). The right protection makes this a straightforward product to use safely.

When to choose Selleys No More Cracks Interior Powder Filler

This is your product when:

1. You are repairing varied interior surfaces — drywall, wood trim, interior masonry — where the datasheet's "most interior surfaces" compatibility gives you the widest reach indoors. The non-hazardous classification means less compliance overhead and more focus on getting the job done.

2. You are working in residential, educational, or healthcare settings where GHS-classified hazardous materials create administrative requirements or restrictions. The Interior Powder's "not classified as hazardous" status per its SDS removes labelling obligations, storage lock-up requirements, and SDS distribution needs entirely — a real advantage in sensitive environments.

3. Your interior project ranges from small touch-ups to larger repairs and you want the economy and flexibility of powder format across 500g, 1kg, and 2kg packs. No exterior water resistance needed, no plaster-specific chemistry required — just reliable performance across a wide range of interior surfaces.

Summary

These three Selleys No More Cracks fillers each occupy a clear space in the repair toolkit. The Exterior Powder Filler is the definitive solution for outdoor cement, brick, and masonry work — its water resistance and cement-based chemistry deliver performance where other fillers cannot go, and its higher hazard profile is the trade-off professionals accept for that capability. The RTU Plaster Filler handles quick interior plaster repairs with ready-mixed convenience and a small-format pack, though its preservative chemistry introduces a sensitisation consideration to manage. The Interior Powder Filler carries the safest profile of the three — non-hazardous, the broadest interior substrate range, and pack sizes up to 2kg — making it the practical choice for general indoor repairs. No single product covers every scenario. Match the product's stated application, hazard profile, and format to your substrate, your location, and the scale of your project. That is how Selleys has helped people get it right for over 80 years.

Frequently Asked Questions

What is Selleys No More Cracks Exterior Powder Filler best used for: Repairing cement, brick, and masonry surfaces

Is the Exterior Powder Filler suitable for outdoor use: Yes

Is the Exterior Powder Filler water resistant: Yes

What substrate does the Exterior Powder Filler work on: Cement, brick, and masonry

Does the Exterior Powder Filler work on interior surfaces: Not formulated for interior use

What is Selleys No More Cracks RTU Plaster Filler best used for: Interior plaster wall repairs

Is the RTU Plaster Filler ready to use: Yes, no mixing required

Does the RTU Plaster Filler require water mixing: No

Is the RTU Plaster Filler suitable for outdoor use: No, interior use only

What substrate is the RTU Plaster Filler designed for: Plaster surfaces

What is Selleys No More Cracks Interior Powder Filler best used for: Patching holes and cracks on most interior surfaces

Is the Interior Powder Filler suitable for outdoor use: No

Does the Interior Powder Filler require water mixing: Yes

Which product has the broadest interior substrate compatibility: Interior Powder Filler

Can the Interior Powder Filler be used on drywall: Yes

Can the Interior Powder Filler be used on wood trim: Yes

Which product is classified as hazardous: Exterior Powder Filler and RTU Plaster Filler

Is the Interior Powder Filler classified as hazardous: No, non-hazardous per Safe Work Australia GHS 7

What is the hazard signal word for the Exterior Powder Filler: Danger

What is the hazard signal word for the RTU Plaster Filler: Warning

Does the Exterior Powder Filler cause skin irritation: Yes, Skin Irritation Category 2

Does the Exterior Powder Filler cause eye damage: Yes, serious eye damage Category 1

Can the Exterior Powder Filler cause respiratory irritation: Yes, Respiratory Irritation Category 3

What ingredient causes the Exterior Powder Filler's hazards: Portland cement at 10–30% by weight

Does the RTU Plaster Filler cause eye irritation: Yes, Eye Irritation Category 2A

Does the RTU Plaster Filler cause skin sensitisation: Yes, Skin Sensitisation Category 1

What causes the RTU Plaster Filler's sensitisation risk: Isothiazolinone preservatives

What PPE is required for the Exterior Powder Filler: Respirator, gloves, and eye protection

Should you avoid breathing dust when using the Exterior Powder Filler: Yes

Is ventilation required when using the Exterior Powder Filler: Yes

What PPE is required for the RTU Plaster Filler: Protective gloves

Does the RTU Plaster Filler require a respirator: Not specified as required

Does the Interior Powder Filler have GHS labelling requirements: No

Does the Interior Powder Filler require locked storage: No

Is the Interior Powder Filler suitable for healthcare settings: Yes, due to non-hazardous classification

Is the Interior Powder Filler suitable for educational settings: Yes, due to non-hazardous classification

What pack sizes does the Exterior Powder Filler come in: 500g, 1kg, and 2kg

What pack sizes does the Interior Powder Filler come in: 500g, 1kg, and 2kg

What pack size does the RTU Plaster Filler come in: 100g

Which product offers the largest pack size: Exterior Powder Filler and Interior Powder Filler (both up to 2kg)

Which product is best for small touch-up repairs: RTU Plaster Filler

Which product is most economical for large projects: Exterior Powder Filler or Interior Powder Filler

Does the Exterior Powder Filler contain portland cement: Yes, 10–30% by weight

Does the RTU Plaster Filler contain water-based ingredients: Yes

Does the RTU Plaster Filler contain surfactants: Yes, alcohols C12–C14 ethoxylated at 1–10%

How does the Exterior Powder Filler cure: Through cement hydration over days

How does the RTU Plaster Filler dry: Through water evaporation

Update the FAQ answer to distinguish between the two powder products: the Exterior Powder Filler cures through cement hydration; the Interior Powder Filler cures through water evaporation after mixing.

Are specific dry-to-paint times listed in the datasheets: No, not disclosed

Are maximum gap or depth limits specified in the datasheets: No, not disclosed

Which product is best for exterior brickwork: Exterior Powder Filler

Which product is best for interior plaster walls: RTU Plaster Filler

Which product is best for varied interior repairs: Interior Powder Filler

Can the RTU Plaster Filler be used on masonry: No, designed for plaster only

Can the Exterior Powder Filler be used on plaster: No, not formulated for plaster

Should interior fillers be used outdoors: No, they are not water resistant

Does the Exterior Powder Filler bond with concrete: Yes, through shared hydration chemistry

Is the Exterior Powder Filler suitable for DIY use: Yes, with correct PPE

Is the RTU Plaster Filler convenient for quick repairs: Yes

Does the RTU Plaster Filler produce dust during application: No, it is ready-mixed

Does the Exterior Powder Filler produce dust during mixing: Yes

How long has Selleys been operating: Over 80 years

What product range do these fillers belong to: Selleys No More Cracks range

Is paintability information provided in the datasheets: No, not specified by manufacturer

Which product has the lowest hazard profile: Interior Powder Filler

Which product introduces a sensitisation risk: RTU Plaster Filler

Is the RTU Plaster Filler's sensitisation risk manageable: Yes, with protective gloves

Does the Interior Powder Filler require SDS distribution: No

Does using the Exterior Powder Filler outdoors require special preparation: Yes, proper PPE and ventilation

Can contaminated clothing be worn outside the workplace when using RTU Plaster Filler: No, per SDS requirement P272

Is basic PPE still recommended for the Interior Powder Filler: Yes, gloves, safety glasses, and dust mask

Does the Exterior Powder Filler require locked storage: Yes, per SDS requirement P405

Which product is best when no powder dust is preferred: RTU Plaster Filler

Which product suits professionals working on outdoor masonry: Exterior Powder Filler

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

Exterior Powder Filler

• Product name: Selleys No More Cracks Exterior Powder Filler
• Product range: Selleys No More Cracks
• Form: Powder (requires water mixing)
• Documented use: Water resistant filler for cement, brick, and masonry
• Substrate compatibility: Cement, brick, masonry
• Use environment: Exterior
• Pack sizes: 500g, 1kg, 2kg
• Hazard classification: Hazardous
• Signal word: Danger
• H315 — Causes skin irritation (Skin Irritation Category 2)
• H318 — Causes serious eye damage (Eye Damage Category 1)
• H335 — May cause respiratory irritation (Respiratory Irritation Category 3)
• Key ingredient: Portland cement, 10–30% by weight
• SDS precautionary statements: P261 (avoid breathing dust), P405 (store locked up)
• PPE required: Respirator, gloves, eye protection
• Ventilation required: Yes
• Cure mechanism: Cement hydration
• Dry-to-paint time: Not disclosed in datasheet
• Maximum gap/depth limits: Not disclosed in datasheet
• Paintability: Not specified by manufacturer

No More Cracks RTU Plaster Filler

• Product name: Selleys No More Cracks RTU Plaster Filler
• Product range: Selleys No More Cracks
• Form: Ready-mixed (no mixing required)
• Documented use: Ready mixed interior filler for plaster
• Substrate compatibility: Plaster
• Use environment: Interior only
• Pack size documented: 100g
• Hazard classification: Hazardous
• Signal word: Warning
• H319 — Causes serious eye irritation (Eye Irritation Category 2A)
• H317 — May cause allergic skin reaction (Skin Sensitisation Category 1)
• Key ingredients: Water-based formulation; alcohols C12–C14 ethoxylated at 1–10%; preservatives including isothiazolinones (BIT, CMIT, MIT, OIT at <0.05–0.1%)
• SDS precautionary statements: P272 (contaminated clothing not to be taken out of workplace)
• PPE required: Protective gloves
• Respirator: Not specified as required
• Cure mechanism: Water evaporation
• Produces dust during application: No
• Dry-to-paint time: Not disclosed in datasheet
• Maximum gap/depth limits: Not disclosed in datasheet
• Paintability: Not specified by manufacturer

Interior Powder Filler

• Product name: Selleys No More Cracks Interior Powder Filler
• Product range: Selleys No More Cracks
• Form: Powder (requires water mixing)
• Documented use: Filler for patching holes and cracks in most interior surfaces
• Substrate compatibility: Most interior surfaces
• Use environment: Interior only
• Pack sizes: 500g, 1kg, 2kg
• Hazard classification: Not classified as hazardous according to Safe Work Australia GHS 7
• Signal word: None (no GHS labelling requirements)
• Composition: Ingredients determined to be non-hazardous or below reporting limits
• GHS labelling requirements: None
• Locked storage requirement: None
• SDS distribution requirement: None
• Cure mechanism: Water evaporation after mixing
• Dry-to-paint time: Not disclosed in datasheet
• Maximum gap/depth limits: Not disclosed in datasheet
• Paintability: Not specified by manufacturer

General Product Claims

• Exterior Powder Filler delivers "professional results" on cement, brick, and masonry
• Exterior Powder Filler "holds firm" where standard interior fillers fail
• RTU Plaster Filler delivers "consistent, convenient performance" for smaller cosmetic plaster repairs
• RTU Plaster Filler is a "fast, clean solution" for interior plaster repairs
• Interior Powder Filler offers "the widest interior reach" of the three products
• Interior Powder Filler handles "everyday interior repair jobs with confidence"
• Exterior Powder Filler bonds with concrete through "shared hydration chemistry"
• Using interior products outdoors "puts your repair at risk"
• Using cement-based filler on interior plaster is described as "a chemistry mismatch"
• RTU Plaster Filler sensitisation risk is described as "manageable" with correct gloves
• Interior Powder Filler recommended as suitable for residential, educational, and healthcare settings based on non-hazardous classification
• Exterior Powder Filler described as appropriate for "professionals and prepared DIYers"
• RTU Plaster Filler described as a "precision, convenience-first solution for minor repairs"
• Selleys described as having been "solving repair problems for over 80 years"
• Powder format described as delivering "better economy for larger projects"
• No single product described as covering "every scenario"

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Related Products & Brand Context

The three products covered in this guide — Selleys No More Cracks Exterior Powder Filler, Selleys No More Cracks Exterior Wood Filler (450g), and Selleys No More Cracks Interior Powder Filler (1kg) — are all part of Selleys' No More Cracks range, a family of patching and filling products designed to address cracks and holes across a variety of surfaces and settings. Selleys is an Australian home improvement brand with a broad catalogue spanning adhesives, sealants, fillers, and surface preparation products, and the No More Cracks line sits within their putty and fillers category, specifically under wall fillers and repair.

Within this range, the two powder-based exterior and interior fillers are closely related in form but differ significantly in formulation and safety profile. The Exterior Powder Filler contains Portland cement (making up 10–30% of the product by weight), which gives it its water resistance and durability on masonry surfaces such as brick, cement, stone, and render — but also means it is classified as hazardous under Safe Work Australia GHS 7 criteria, carrying skin, eye, and respiratory irritation risks. The Interior Powder Filler, by contrast, uses entirely non-hazardous ingredients and is suited to patching holes and cracks on most interior surfaces. The Exterior Wood Filler (450g) addresses a different substrate altogether — timber rather than masonry — rounding out the range's coverage across common exterior repair scenarios. Where the powder fillers are mixed with water before use, the wood filler is a ready-to-use format aimed at timber surfaces outdoors.

Someone reaching for any of these products is likely to also need complementary items from adjacent categories. Surface preparation products such as sandpaper or a sanding block are a natural pairing, since all three fillers can be sanded once cured. A suitable primer or exterior-grade paint would typically follow once the filler is dry, particularly for the exterior variants where weatherproofing the repair is important. For the cement-based exterior powder filler, appropriate PPE — gloves and eye protection — should also be considered given its hazard classification. These adjacencies are worth keeping in mind when planning a repair project from start to finish.

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