AI Summary

Product: Selleys No More Cracks RTU Plaster Filler Brand: Selleys, a division of DuluxGroup Australia Pty Ltd Category: Interior wall repair compound / plaster filler Primary Use: Ready-to-use, pre-mixed filler for repairing cracks, holes, and surface imperfections in interior plaster walls and ceilings — no mixing, measuring, or water addition required.

Quick Facts

Best For: DIYers and professional tradespeople performing targeted interior plaster repairs (hairline cracks, nail holes, screw holes, surface chips, minor settlement cracks)
Key Benefit: Zero preparation time — factory pre-mixed to exact working consistency; open container and apply immediately
Form Factor: White paste, 100g sealed container
Application Method: Apply directly from container using a flexible filling knife; press firmly into void; leave slightly proud of surface; sand smooth with 120–180 grit sandpaper once fully dry

Common Questions This Guide Answers

Does Selleys No More Cracks RTU require mixing or water? No — RTU (Ready to Use) means no mixing, no water, and no measuring required
Is this product safe to transport and store without special handling? Yes — not classified as a hazardous substance or Dangerous Goods for transport by road, rail, sea, or air in Australia and New Zealand
What PPE is required when using this product? Nitrile rubber gloves (during active handling), safety glasses, overalls, and safety shoes, per SDS Version 5.0 issued 20 October 2025
Can deep repairs be filled in a single application? No — repairs deeper than approximately 5mm should be built up in multiple layers, allowing each layer to dry fully before applying the next
Why does the painted surface look patchy after repair? Filler absorbs paint differently to surrounding plaster; apply a primer or mist coat over the repaired area before full painting to ensure a uniform finish

Selleys No More Cracks RTU Plaster Filler — complete product guide

Product overview

Selleys No More Cracks RTU Plaster Filler is a ready-mixed interior wall repair compound for filling cracks, holes, and surface imperfections in plaster walls and ceilings. Manufactured by Selleys, a division of DuluxGroup Australia Pty Ltd, it has a long track record in the Australian home repair market and works equally well for tradespeople and first-time DIYers.

The product comes in a 100g container — a white paste with a mild characteristic odour. Its main practical advantage is zero preparation time. No powder to mix, no water to add, no waiting around to get the consistency right. Open the container and apply directly to the surface.

This guide covers everything you need to use Selleys No More Cracks RTU Plaster Filler safely and effectively — from understanding what the product is, to applying it with precision and storing it properly for the next job.

What "Ready to Use" actually means

RTU stands for Ready to Use, and understanding this matters for getting good results from the first application. Many plaster fillers are sold as dry powder that must be measured and mixed with water before use. That process introduces variables — too much water produces a runny, weak filler; too little makes it hard to spread and prone to cracking as it dries.

Selleys No More Cracks RTU cuts out that uncertainty entirely. The filler is pre-mixed at the factory to the exact working consistency and supplied in a sealed container. Open it, and the product is ready to go.

For any user — professional or first-timer — this means no guesswork around mixing ratios, no wasted material from failed mixes, and a faster start, which is particularly useful for small incidental repairs that need to look perfect.

The 100g size suits targeted, precise repairs rather than large-scale filling jobs, where a bulk powder product may be more economical. For minor repairs, it's the practical, high-quality choice.

Intended surface and application scope

Selleys No More Cracks RTU Plaster Filler is formulated for interior plaster surfaces. It is not designed for exterior use, and applying it outdoors or in moisture-exposed areas — bathrooms or laundries, for example — falls outside its intended scope.

Typical applications include:

Hairline cracks in plaster walls or ceilings
Small holes left by nails, screws, or picture hooks
Surface chips and gouges in plaster
Minor settlement cracks in interior plaster

The 100g container reflects the product's purpose: precise, targeted repairs rather than whole-wall resurfacing. For context, 100g of paste filler covers multiple small nail holes or a short run of hairline cracking with ease, leaving a clean, invisible repair.

How to apply Selleys No More Cracks RTU Plaster Filler

Surface preparation

A quality repair starts with a clean surface. Before applying filler, make sure the surface is clean, dry, and free from loose material. For cracks, use a scraper or filling knife edge to remove any flaking plaster or paint around the crack edges, then brush out dust and debris from inside the crack. A properly prepared surface gives the filler something solid to bond to — no lifting, no shrinking away from edges as it dries.

Application method

Apply the filler directly from the container using a flexible filling knife or putty knife. Work it firmly into the crack or hole, pressing to fill the full depth of the void. For deeper repairs, build up the filler in layers rather than attempting to fill the full depth in a single pass — thick single applications increase the risk of cracking or shrinkage as the product cures.

Draw the filling knife across the surface at a slight angle, leaving the filler marginally proud — raised slightly above the surrounding wall surface. This accounts for the minor shrinkage that occurs during drying and sets you up for a flush finish after sanding.

Drying and finishing

Allow the filler to dry fully before sanding. Drying time varies depending on the depth of the repair, ambient temperature, and humidity. Once dry, sand smooth with fine-grit sandpaper — 120 to 180 grit — until the repair is flush with the surrounding surface. Wipe away dust before painting.

For deeper repairs requiring a second coat, let the first coat dry completely before applying the next layer. That patience pays off in the final result.

Safety considerations and required PPE

Selleys No More Cracks RTU Plaster Filler is not classified as a hazardous substance or Dangerous Goods for transport by road, rail, sea, or air in Australia and New Zealand. That said, using appropriate personal protective equipment is standard practice.

The manufacturer's Safety Data Sheet (SDS) specifies the following PPE:

PPE Item	Purpose
Safety shoes	Protection against dropped containers or tools
Overalls	Skin and clothing protection during application
Nitrile rubber gloves (for intermittent contact)	Hand protection when handling the product
Safety glasses	Eye protection against splashes during application

Understanding "intermittent contact" for gloves

The SDS specifies nitrile rubber gloves for intermittent contact — meaning gloves are recommended whenever you are actively handling the product. The risk associated with brief or incidental skin contact is low, but wearing the right gear is always the sensible call. Nitrile rubber resists a wide range of chemicals and provides reliable barrier protection for this type of task.

Ventilation

The product has only a mild characteristic odour and carries no hazardous classification. Working in a well-ventilated space is still the sensible standard when using any filler or coating product indoors.

Non-Dangerous Goods classification

The confirmation that this product is not classified as Dangerous Goods under Australian and New Zealand transport regulations is relevant for tradespeople and retailers managing storage and transport. No special handling, labelling, or transport restrictions apply — just standard safe handling practices.

Storage and product care

Seal the container tightly after every use. Exposure to air causes the paste surface to dry out and form a skin, which can affect smooth application next time.

Key storage guidance:

Seal the container immediately after use
Store in a cool, dry location away from direct sunlight and heat sources
Keep out of reach of children
Do not allow the product to freeze — freezing can alter the consistency and affect performance

If a skin forms on the surface after storage, it can often be removed carefully with a spatula, with usable product beneath. If the product has dried significantly throughout the container, replace it. Starting fresh ensures the quality of your repair holds up.

Tips for better results

These are the techniques that separate a good repair from one that's invisible once painted.

Build depth in layers, not one pass. For any repair deeper than approximately 5mm, apply two or more layers, allowing each to dry fully. This eliminates cracking and shrinkage and produces a repair that lasts.

Dampen very dry or porous plaster before applying filler. This slows moisture absorption from the filler into the wall, giving the product more time to bond and reducing the risk of it drying too fast.

Use a flexible filling knife. Flexibility gives you control — it lets you feather the edges of the repair cleanly, making the final sanding stage faster and the result sharper.

Sand lightly between coats when applying multiple layers. A light pass with fine-grit paper between coats helps the next layer bond smoothly and evenly to the first.

Prime before painting. Filler absorbs paint differently to surrounding plaster, which can create a patchy finish. A coat of primer or diluted paint — a mist coat — over the repaired area before full painting ensures a consistent result across the whole wall.

Work in moderate temperatures. Very cold or very hot conditions affect drying time and final finish. Consistent results come from working between 10°C and 30°C.

Troubleshooting common issues

Even with the right product, surfaces can present their own challenges. Here's how to handle the most common ones.

The filler is cracking as it dries

The repair was likely too deep for a single application, or the filler dried too fast on a very dry or porous surface. Let the cracked filler dry fully, remove any loose material, and re-apply in thinner, controlled layers.

The filler is shrinking below the wall surface

Minor shrinkage is a normal part of the drying process. Apply a second thin coat once the first has dried fully, building the repair back up to flush or slightly proud of the surface, then sand smooth.

The filler won't sand smoothly

Check that the filler is completely dry before sanding. Sanding while the filler is still damp tears the surface rather than abrading it cleanly. If the filler is dry but still resisting, start with a slightly coarser grit — around 80 to 100 — before finishing with fine grit.

The surface looks patchy after painting

This usually comes from painting directly over filler without a primer coat. Sand the area lightly, apply a primer or mist coat over the repair, and repaint.

References

Frequently asked questions

What is Selleys No More Cracks RTU Plaster Filler: A ready-to-use interior wall repair compound

Who manufactures Selleys No More Cracks RTU: Selleys, a division of DuluxGroup Australia Pty Ltd

What does RTU stand for: Ready to Use

Does RTU mean no mixing is required: Yes, no mixing required

Does it require water to be added: No, no water needed

Does it require measuring before use: No, no measuring required

What colour is the product: White paste

What is the container size: 100g

What is the odour of the product: Mild characteristic odour

Is it suitable for interior use: Yes, interior use only

Is it suitable for exterior use: No, not formulated for exterior use

Is it suitable for bathroom use: No, not for moisture-exposed areas

Is it suitable for laundry areas: No, not for moisture-exposed areas

What surfaces is it designed for: Interior plaster walls and ceilings

Can it fill hairline cracks: Yes

Can it fill nail holes: Yes

Can it fill screw holes: Yes

Can it fill picture hook holes: Yes

Can it fill surface chips in plaster: Yes

Can it fill minor settlement cracks: Yes

Is it suitable for whole-wall resurfacing: No, designed for targeted repairs

Does it require surface preparation before application: Yes

What surface preparation is required: Surface must be clean, dry, and free from loose material

Should loose plaster be removed before applying: Yes

What tool is recommended for application: A flexible filling knife or putty knife

Should filler be pressed firmly into the crack: Yes, press firmly to fill full depth

Should the filler be applied flush or proud of the surface: Slightly proud of the surface

Why should filler be left slightly proud: To account for minor shrinkage during drying

Can deep repairs be filled in a single pass: No, build up in layers

What is the recommended maximum single-layer depth: Approximately 5mm

Should each layer dry before applying the next: Yes, fully dry between layers

Should the filler be sanded after drying: Yes

What sandpaper grit is recommended for finishing: 120 to 180 grit fine sandpaper

Should dust be wiped away before painting: Yes

Should a primer be applied before painting: Yes, recommended before painting

Why is priming recommended over filler: Filler absorbs paint differently to surrounding plaster

What is a mist coat: A diluted paint coat applied before full painting

Does the product need to be primed to avoid patchiness: Yes

Is the product classified as a hazardous substance: No

Is it classified as Dangerous Goods for transport: No

Does the non-hazardous classification apply to road transport: Yes

Does the non-hazardous classification apply to sea transport: Yes

Does the non-hazardous classification apply to air transport: Yes

Does the non-hazardous classification apply to rail transport: Yes

Is PPE required when using the product: Yes, PPE is recommended

What gloves are recommended: Nitrile rubber gloves

When are gloves recommended: During active handling of the product

Are safety glasses required: Yes

Are overalls recommended: Yes

Are safety shoes recommended: Yes

What is the purpose of safety glasses during use: Protection against splashes

Is ventilation required during use: Yes, work in a well-ventilated space

How should the container be stored after use: Sealed tightly

Where should the product be stored: Cool, dry location away from sunlight and heat

Should the product be kept away from children: Yes

Can the product be allowed to freeze: No, freezing alters consistency

What happens if a skin forms on the stored product: Remove carefully with a spatula

When should the product be replaced: If dried significantly throughout the container

What causes filler to crack during drying: Repair too deep for a single application

What else causes filler to crack during drying: Filler drying too fast on a porous surface

How to fix cracking filler: Remove loose material and re-apply in thinner layers

Is minor shrinkage below the wall surface normal: Yes

How to fix shrinkage below wall surface: Apply a second thin coat once first coat is dry

Why does filler resist smooth sanding: Filler may still be damp

What grit sandpaper to start with on resistant filler: 80 to 100 grit

What causes a patchy finish after painting over filler: Painting directly over filler without primer

How to fix a patchy painted finish: Sand lightly, apply primer, then repaint

Should very dry or porous plaster be dampened before filling: Yes

Why dampen porous plaster before filling: Slows moisture absorption from filler into wall

What type of filling knife delivers best results: A flexible filling knife

Should layers be sanded between coats: Yes, lightly sand between coats

What is the ideal working temperature range: Between 10°C and 30°C

Does very cold temperature affect drying: Yes, affects drying time and finish

Does very hot temperature affect drying: Yes, affects drying time and finish

What country is this product primarily marketed in: Australia

Is this product suitable for first-time DIYers: Yes

Is this product suitable for professional tradespeople: Yes

What SDS version covers this product: Version 5.0

When was the current SDS issued: 20 October 2025

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 name: Selleys No More Cracks RTU Plaster Filler
Manufacturer: Selleys, a division of DuluxGroup Australia Pty Ltd
RTU designation: Ready to Use — no mixing, no water addition, no measuring required
Container size: 100g
Form/colour: White paste
Odour: Mild characteristic odour
Intended use: Interior plaster walls and ceilings only
Not suitable for: Exterior use, bathrooms, laundry areas, or moisture-exposed areas
Hazardous substance classification: Not classified as a hazardous substance
Dangerous Goods classification: Not classified as Dangerous Goods for transport by road, rail, sea, or air (Australia and New Zealand)
Recommended PPE (per SDS): Nitrile rubber gloves (intermittent contact), safety glasses, overalls, safety shoes
Glove use timing: During active handling of the product
Ventilation requirement: Work in a well-ventilated space
Storage: Seal tightly after use; store in a cool, dry location away from direct sunlight and heat sources; keep out of reach of children; do not allow to freeze
Application tool: Flexible filling knife or putty knife
Application method: Apply directly from container; press firmly into full depth of void; leave slightly proud of surface
Layer depth guidance: Build up repairs deeper than approximately 5mm in multiple layers; allow each layer to dry fully before applying the next
Finishing sandpaper grit: 120 to 180 grit fine sandpaper
Primer recommendation: Apply primer or mist coat over repair before full painting
Ideal working temperature range: 10°C to 30°C
SDS version: Version 5.0
SDS issue date: 20 October 2025
Primary market: Australia

General product claims

Delivers professional wall repair results
Eliminates mixing uncertainty by supplying pre-mixed filler at the factory
100g size is suited to targeted, precise repairs rather than large-scale filling jobs
Suitable for first-time DIYers and professional tradespeople
A flexible filling knife gives better control and cleaner feathered edges
Dampening very dry or porous plaster before application slows moisture absorption and improves bonding
Lightly sanding between coats improves adhesion of subsequent layers
Applying a mist coat before full painting ensures a consistent finish
Minor shrinkage below the wall surface during drying is a normal part of the process
If a skin forms on stored product, usable filler may remain beneath and can be recovered with a spatula

Selleys No More Cracks Plaster Filler - 100g 09 product guide