Dulux Interior Crackfiller | White, 2kg overview
Dulux Interior Crackfiller | White, 2kg is a high‑quality filler formulated to repair cracks, holes, ceiling joints, and gaps around doors. It mixes easily to a smooth, creamy paste, adheres strongly to substrates, and sands down effortlessly for a professional finish. Designed for interior use, it ensures surfaces are perfectly prepared for priming and painting.
Dulux Interior Crackfiller | White, 2kg benefits and features
- Smooth consistency: Mixes easily into a creamy paste.
- Strong adhesion: Special binders ensure reliable grip.
- Shrink‑resistant: Long‑lasting fill that won’t shrink or crack.
- Easy sanding: Produces a smooth finish ready for painting.
- Quick drying: Touch‑dry in 6 hours at 23°C.
- Versatile use: Works on plaster, fibre cement, composite boards, and wood.
- DIY‑friendly: Excellent results achievable by average users.

Step to follow for using the Dulux Interior Crackfiller | White, 2kg
Preparation
- Ensure surfaces are sound, dry (≤12% moisture), and free from dust, oil, grease, or debris.
- Remove loose plaster, old paint, or wallpaper.
- Widen narrow cracks into a “V” shape with a sharp tool for better adhesion.
How to use the Dulux Interior Crackfiller | White, 2kg
- Mix 2 parts powder with 1 part water to form a stiff, workable paste.
- Apply with a wet scraper or trowel, pressing firmly into cracks or cavities.
- For deep cavities (up to 5 mm), apply in layers, allowing each to harden before the next.
- Smooth off while wet, then allow to set completely (overnight for deep fills).
Cleanup
- Clean tools immediately with warm water or Dulux Sugar Soap solution.
- Store unused powder sealed in a cool, dry place.
A few scenarios where the product can be used
- Filling cracks in interior plaster walls.
- Repairing ceiling joints.
- Smoothing gaps around doors and windows.
- Preparing fibre cement boards before painting.
Other products you might like for your painting preparation
Health and safety
Contains Portland cement and calcium dihydroxide. Causes serious eye damage, skin irritation, and may cause respiratory irritation. Avoid contact with skin and eyes. Use in well‑ventilated areas. Wear gloves, eye protection, and a dust mask when mixing or sanding. Keep out of reach of children. Dispose of contents responsibly according to local regulations.
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Shipping Info
Shipping & Delivery
We deliver nationwide across South Africa for a flat rate of R150. Terms and conditions apply.
Delivery times are normally 5–7 working days, but it might be quicker depending on your location
With fast and secure checkout, order today and enjoy reliable delivery to your door.
You will also be able to book your own courier at checkout.

FAQ
FAQs – Dulux Interior Crackfiller | White, 2kg
- How thick can I apply it?
Up to 5 mm per layer, with multiple applications for deeper cavities. - Do I need to prime after filling?
Yes, spot prime filled areas with Dulux Plaster Primer before top coating. - How long does it take to dry?
Approximately 6 hours at 23°C, longer in cold or humid conditions. - Can I sand it?
Yes, once dry it sands easily to a smooth finish. - Is it suitable for exterior use?
No, it is designed for interior applications only. - What surfaces can I use it on?
Cement plaster, gypsum plaster, fibre cement, composite boards, and wood. - How should I mix it?
Combine 2 parts powder with 1 part water until smooth and lump‑free. - Is it safe to use?
Yes, with precautions: wear gloves, eye protection, and avoid inhaling dust.
Out of Stock?
Feel free to contact us via the WhatsApp widget on this page, or send us an email at online@habitatpotch.co.za . We’ll gladly assist with availability, alternatives, or bulk orders.






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