AI Summary

Product: Selleys No More Cracks™ Large Cracks & Holes Brand: Selleys (manufactured by DuluxGroup Pty Ltd) Category: Ready-to-use acrylic surface filler Primary Use: Filling and repairing large cracks and holes up to 6mm deep across interior and exterior surfaces including plaster, mortar, concrete, timber, and primed metal.

Quick Facts

Best For: Large cracks and holes requiring strong adhesion and minimal shrinkage; suitable for tradies and homeowners
Key Benefit: Superior adhesion with minimal shrinkage — professional results in a single application for repairs up to 6mm deep
Form Factor: Smooth, workable paste (available as tub or squeezable tottle)
Application Method: Press into crack or hole with a filling blade or scraper; sand smooth once fully dry

Common Questions This Guide Answers

What is the maximum single-layer repair depth? → 6mm; deeper repairs require multiple layers, each fully dried before the next
Can it be used on moving or active cracks? → No; it cures rigid and is not suitable where substrate movement occurs — use Selleys No More Gaps® instead
What are the dry times? → Under 2mm: 2–3 hours; up to 6mm: 24 hours (at approximately 23°C and 50% relative humidity)

Product Overview

Selleys No More Cracks™ Large Cracks & Holes is a ready-to-use, water-based acrylic filler built for serious surface repair. When standard fillers fall short, this one steps up — engineered for cracks and holes that need real performance. Manufactured by DuluxGroup Pty Ltd under the Selleys name, it bonds well and shrinks minimally across a broad range of interior and exterior surfaces: plaster, mortar, concrete, timber, and primed metal.

Most fillers handle hairline cracks and cosmetic touch-ups. This one handles the tough jobs — gaps and voids that need genuine body, reliable bonding strength, and the versatility to work across multiple substrates. Whether you're a tradie on site or a homeowner tackling a weekend repair, No More Cracks Large Cracks & Holes gets you a professional result the first time.

Key Features and What They Mean in Practice

Water-based acrylic formula

No More Cracks Large Cracks & Holes uses a water-based acrylic formula, delivered as a smooth, workable paste. That means real advantages from the moment you open the tub:

Ease of application: The smooth paste consistency spreads evenly with a filling blade or scraper. Working material into deep or irregular voids takes less effort and delivers a cleaner result.
Cleanup: Clean tools and surfaces with water before the product dries — no solvents needed.
Low odour: Water-based formulas produce far less fume than solvent-based alternatives. Interior use stays comfortable without heavy ventilation.
Paintability: Once cured, the surface takes standard interior and exterior paints without lifting or reacting. Your topcoat goes on clean and stays put.

Superior adhesion with minimal shrinkage

These two properties define what this product actually delivers on the wall. Adhesion is how well the filler bonds to the surrounding substrate — poor adhesion means fillers that pop out, crack at the edges, or let the topcoat down when you paint over them. Shrinkage is how much the material contracts as it dries. All fillers shrink as moisture leaves, but excessive shrinkage in a large repair leaves a sunken, uneven surface, or pulls the filler away from the edges entirely.

For repairs up to 6mm deep, this product holds its bond and maintains its volume through the drying process. Less sink. Less likelihood of a second application. A solid result the first time.

Multi-surface compatibility

No More Cracks Large Cracks & Holes performs across the surfaces you actually work on:

Plaster — the most common interior wall substrate in Australian homes
Mortar — brick joints, render, and masonry repairs
Concrete — floors, walls, and structural surfaces
Timber — interior framing, skirting, architraves, and joinery
Primed metal — note the requirement for priming; bare metal is not a suitable substrate

That range of compatibility makes this a practical, single-product solution for whole-of-house repair work. One tub, multiple surfaces, no compromises on performance.

Dry Times and Repair Depth

Getting the dry time right is the difference between a repair that lasts and one that lets you down. Sand or paint too early and you undo the work. Here's what to plan for:

Repair Depth	Approximate Dry Time
Under 2mm	2–3 hours
Up to 6mm	24 hours

These times are based on standard conditions — approximately 23°C and 50% relative humidity. Cooler temperatures, higher humidity, or poor air circulation will extend dry times. Do not apply below 5°C. At that temperature, the acrylic cannot cure properly, which puts both adhesion and long-term stability at risk.

For repairs deeper than 6mm, build up the filler in multiple layers. Let each layer dry fully before applying the next. Filling a deep void in a single pass traps moisture beneath the surface — that leads to cracking and unpredictable dry times.

Suitable Applications

Interior use

No More Cracks Large Cracks & Holes handles the full range of interior repair work where damage goes beyond a hairline crack:

Filling holes left by removed wall anchors, screws, or picture hooks that have enlarged over time
Repairing cracked or broken plaster around door frames and window reveals
Patching damaged sections of rendered interior walls
Filling gaps and cracks in timber joinery, skirting boards, and architraves before repainting

Exterior use

This product is rated for exterior use. To get the best results outdoors, follow these steps:

Prime the surface first. Exterior substrates, particularly concrete and masonry, need priming before application to ensure the adhesion holds.
Protect from rain until painted. The filler must be fully dry and painted over before exposure to rain or sustained moisture. A dried but unpainted filler on an exterior surface is not a finished, weather-resistant surface.
Avoid exterior timber prone to excessive water absorption. Timber that regularly saturates — horizontal surfaces exposed to pooling water, or highly porous species — is not a recommended substrate for this product outdoors.

Limitations and When to Use a Different Product

Knowing when to reach for a different product is part of getting the job done right. Here's where this product's limits sit.

Not suitable where movement occurs

This is the most important limitation to understand. No More Cracks Large Cracks & Holes cures to a rigid finish. It is not designed to flex or move with the substrate. Cracks caused by ongoing structural movement — seasonal expansion and contraction, building settlement, or vibration — will reopen through a rigid filler. For those situations, Selleys recommends No More Gaps®, a flexible sealant built to accommodate movement.

If you're not certain whether a crack is active (still moving) or static (historical damage that has stabilised), monitor it over several weeks before filling. Mark the ends of the crack with pencil and check whether the marks shift or the crack extends. Filling an active crack with a rigid product means the repair will not hold.

Temperature restriction

Do not apply below 5°C. This applies to both the ambient air temperature and the surface temperature of the substrate. Cold surfaces prevent proper adhesion and curing. Wait for the right conditions.

Exterior timber with high water absorption

Timber species or conditions where the wood absorbs significant amounts of water are not appropriate for this product outdoors. Repeated swelling and contraction from saturation stresses the bond and will cause the repair to break down prematurely.

Application Guide

What you will need

Filling blade or scraper (a flexible filling knife works best for pressing material into voids)
Fine sandpaper (for finishing once dry)
Primer (for exterior surfaces and bare metal)
Clean water (for tool cleanup)

Step-by-step process

1. Prepare the surface. Remove all loose material, dust, flaking paint, and debris from the crack or hole. The filler bonds to a clean, sound substrate — anything that compromises that surface puts the repair at risk. For exterior surfaces or primed metal, apply the appropriate primer and let it dry fully before you start.

2. Apply the filler. Using a filling blade or scraper, press the filler firmly into the crack or hole. Work the material in — don't just spread it across the surface. Full contact with the substrate walls and the base of the void is what gives you the adhesion and the lasting result.

3. Scrape off excess. Draw the blade across the repair to remove excess filler and leave the surface as flush as possible. Less material sitting proud of the surface means less sanding once it's dry, and a cleaner finish.

4. Allow to dry fully. Refer to the dry time table above. This step is non-negotiable. Sanding or painting over filler that hasn't fully cured drags the material, leaves an uneven surface, and puts the adhesion of your topcoat at risk. Let it dry.

5. Sand smooth. Once fully dry, sand with fine sandpaper until the repair sits flush with the surrounding surface. Wipe away dust before painting.

6. Paint. Apply your chosen topcoat. For exterior repairs, painting over the filler is essential — it provides the weather protection the filler itself does not offer. A painted repair is a finished repair.

Available Formats

No More Cracks Large Cracks & Holes comes in four pack sizes to suit the scale of your job:

230g Tub — ideal for small, targeted repairs
450g Tub — a practical mid-size option for single-room projects
1kg Tub — suited to larger repair jobs or trade use where multiple repairs are planned
230g Tottle — a squeezable tube format that gives you more controlled dispensing for precise application, particularly useful for narrow cracks

Choose the right pack size for the job. It reduces waste and keeps the product fresh. Once opened, store with the lid firmly sealed.

Storage and Shelf Life

Store in a cool, dry location away from direct sunlight and frost. Do not allow the product to freeze — freezing permanently alters the consistency and performance of the acrylic formula. After every use, close the lid or cap tightly to prevent the surface from skinning over or the product drying out in the container.

Safety Considerations

As a water-based acrylic product, No More Cracks Large Cracks & Holes carries a lower hazard profile than solvent-based fillers. Standard precautions still apply:

Avoid prolonged skin contact; wash hands thoroughly after use
Keep out of reach of children
In case of eye contact, rinse immediately with water
Ensure adequate ventilation when working in enclosed spaces, even with low-odour water-based products

For full safety information, refer to the Safety Data Sheet (SDS) available from Selleys or DuluxGroup.

References

Additional technical detail based on manufacturer specifications provided in the product data sheet (Version 2, DuluxGroup Pty Ltd).

Frequently Asked Questions

What is Selleys No More Cracks Large Cracks & Holes: A ready-to-use acrylic filler for large cracks and holes

Who manufactures this product: DuluxGroup Pty Ltd under the Selleys brand

Is this product water-based: Yes, water-based acrylic formula

Is this product ready to use: Yes, no mixing required

What consistency is the product: Smooth, workable paste

What is the maximum single-layer repair depth: 6mm

What is the dry time for repairs under 2mm: 2–3 hours

What is the dry time for repairs up to 6mm: 24 hours

Are dry times based on standard conditions: Yes, approximately 23°C and 50% relative humidity

Does cold weather extend dry times: Yes, cooler temperatures extend dry times

Does high humidity extend dry times: Yes, higher humidity extends dry times

What is the minimum application temperature: 5°C

Can it be applied below 5°C: No

Why can't it be applied below 5°C: Cold prevents proper curing and adhesion

Does it work on plaster: Yes

Does it work on mortar: Yes

Does it work on concrete: Yes

Does it work on timber: Yes

Does it work on bare metal: No, metal must be primed first

Does it work on primed metal: Yes

Is it suitable for interior use: Yes

Is it suitable for exterior use: Yes

Does exterior use require priming: Yes, prime exterior surfaces before application

Must exterior repairs be painted: Yes, paint provides weather protection

Is an unpainted exterior repair weather-resistant: No

Can it flex with substrate movement: No, it cures to a rigid finish

Is it suitable for active cracks: No

What product is recommended for moving cracks: Selleys No More Gaps®

How do I check if a crack is active: Mark ends with pencil and monitor for movement over weeks

Does it shrink excessively when drying: No, minimal shrinkage is a key feature

Does it have strong adhesion: Yes, superior adhesion is a key feature

Can repairs deeper than 6mm be filled: Yes, in multiple layers

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

Why must layers dry fully before adding the next: Trapping moisture causes cracking

Is solvent needed for cleanup: No, clean with water only

When must tools be cleaned: Before the product dries

Is it low odour: Yes, low odour formula

Does it require heavy ventilation indoors: No, but adequate ventilation is still recommended

Is it paintable once cured: Yes

Does it react with topcoat paint: No, topcoat goes on cleanly

What tool is recommended for application: Filling blade or scraper

Is a flexible filling knife suitable: Yes, works best for pressing into voids

What sandpaper grade is recommended for finishing: Fine sandpaper

Should surface dust be removed before painting: Yes, wipe away dust before painting

What is the smallest pack size available: 230g tub

What is the largest pack size available: 1kg tub

How many pack sizes are available: Four

What pack sizes are available: 230g tub, 450g tub, 1kg tub, and 230g tottle

What is the tottle format: A squeezable tube for controlled dispensing

What is the tottle best used for: Precise application in narrow cracks

Should the lid be sealed after use: Yes, seal tightly after every use

What happens if the lid is left open: Surface skins over or product dries out

How should the product be stored: Cool, dry location away from sunlight and frost

Can the product freeze: No, freezing permanently damages the formula

What does freezing do to the product: Permanently alters consistency and performance

Is it safe compared to solvent-based fillers: Yes, lower hazard profile

Should prolonged skin contact be avoided: Yes

How should skin contact be handled: Wash hands thoroughly after use

What should be done if product contacts eyes: Rinse immediately with water

Should it be kept away from children: Yes

Where can the Safety Data Sheet be found: Selleys or DuluxGroup website

Is it suitable for exterior timber prone to water absorption: No

Why is highly absorbent exterior timber unsuitable: Repeated swelling stresses and breaks the bond

Is it suitable for filling screw holes: Yes

Is it suitable for repairing cracked plaster around door frames: Yes

Is it suitable for filling gaps in skirting boards: Yes

Is it suitable for patching rendered interior walls: Yes

Does the product require primer on all surfaces: No, only exterior surfaces and bare metal

What is the brand name of this product: Selleys No More Cracks™ Large Cracks & Holes

Is this product designed for hairline cracks only: No, designed for large cracks and holes

Is this a single-product solution for multiple surfaces: Yes

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

Brand: Selleys
Product Name: No More Cracks™ Large Cracks & Holes
Manufacturer: DuluxGroup Pty Ltd (under the Selleys brand)
Formula Type: Water-based acrylic
Ready to Use: Yes, no mixing required
Consistency: Smooth, workable paste
Maximum Single-Layer Repair Depth: 6mm
Dry Time (repairs under 2mm): 2–3 hours
Dry Time (repairs up to 6mm): 24 hours
Dry Time Reference Conditions: Approximately 23°C and 50% relative humidity
Minimum Application Temperature: 5°C
Compatible Substrates: Plaster, mortar, concrete, timber, primed metal
Not Suitable For: Bare metal (must be primed); exterior timber prone to excessive water absorption; active/moving cracks
Interior Use: Yes
Exterior Use: Yes (priming required on exterior surfaces before application)
Exterior Repair Painting Requirement: Must be painted over to provide weather protection
Repairs Deeper Than 6mm: Apply in multiple layers; each layer must dry fully before the next
Cleanup: Water only; no solvents required; clean tools before product dries
Cured Finish: Rigid (not flexible; not suitable where substrate movement occurs)
Recommended Alternative for Moving Cracks: Selleys No More Gaps®
Recommended Application Tool: Filling blade or scraper (flexible filling knife preferred)
Finishing: Fine sandpaper once fully dry; remove dust before painting
Available Pack Sizes: 230g tub, 450g tub, 1kg tub, 230g tottle
Tottle Format: Squeezable tube for controlled dispensing; suited to narrow cracks
Storage: Cool, dry location; away from direct sunlight and frost
Freezing: Must not be allowed to freeze — permanently alters consistency and performance
Lid/Cap After Use: Must be sealed tightly to prevent skinning or drying in container
Odour: Low odour
Hazard Profile: Lower than solvent-based fillers (water-based)
Skin Contact: Avoid prolonged contact; wash hands thoroughly after use
Eye Contact: Rinse immediately with water
Keep Out of Reach of Children: Yes
Ventilation: Adequate ventilation recommended even for indoor use
Safety Data Sheet (SDS): Available from Selleys or DuluxGroup website

General Product Claims

Engineered specifically for cracks and holes that demand real performance
Superior adhesion with minimal shrinkage
Suitable as a single-product solution for whole-of-house repair work
Professional results achievable on first application
Performs where standard fillers fall short
Smooth paste consistency makes application straightforward
Spreading into deep or irregular voids takes less effort and delivers a cleaner result
Minimal shrinkage reduces the likelihood of a second application
Topcoat applies cleanly and stays put once filler is cured
Interior use stays comfortable without need for heavy ventilation
Suitable for tradies on site and homeowners undertaking weekend repairs
Tottle format provides more controlled dispensing for precise application
Choosing the correct pack size reduces waste and keeps the product fresh

Selleys No More Cracks Large Cracks & Holes 15 product guide