
Zinsser
Firecoat 4L White Interior Fire-Retardant Undercoat is a water-based coating that adds fire-retardant protection to internal surfaces.
Coverage depends on the timber substrate, at 300g/m2 to achieve 1mm DFT and 1.6mm WFT. Suited to internal timber and building surfaces during construction and fit-out.
Firecoat 4l White Interior Fire Retardant Undercoat is a water-based fire-resistant coating designed for internal finishes, offering high flame-retardant protection for various applications.
This innovative undercoat provides exceptional fire protection for both residential and commercial spaces, including kitchens, bedrooms, and utility areas. Developed in collaboration with experts from the University of New South Wales Sydney, it is free from halogenated flame retardants and forms a protective char layer when exposed to flames or heat. This barrier helps prevent ignition of the underlying surface, slows flame spread, and reduces smoke generation, thereby enhancing safety and minimising property damage. Firecoat 4l is easy to apply using a brush, roller, or sprayer, making it suitable for both professionals and DIY enthusiasts.
| Dimensions (W x H x D) | 176mm x 192mm x 176mm |
| Weight | 5.8kg |
| Colour | White |
| Model Number | FCT0001 |
| Volume/Size | 4L |
The Firecoat 4l White Interior Fire Retardant Undercoat enhances fire safety in various indoor environments.
Indoor - it is an interior fire-retardant undercoat.
By brush, roller or airless spray.
10C.
Great value for money
Spent a while looking for the right Firecoat 4L and this kept coming up as the best value. I can see why — quality is impressive for the price. Delivery took just 2 days to Townsville which is great. Packaging was solid and everything intact. My partner and I both use it daily now. Highly recommended.
One of my best online buys
Quality product at a fair price. Delivered quickly. Happy.
Happy with SuperSaver AU
Have bought Firecoat before and always been happy. Great price on SuperSaver AU and delivery was fast. Arrived perfectly packaged. Works flawlessly from day one.
Fast delivery and perfect condition
Fast delivery and exactly what I ordered. Very happy with this.
Outstanding value
Bought this on a bit of an impulse after seeing it on the site and really glad I did. Quality is much better than the price suggests — feels premium and well made. Ordered Monday and it arrived Wednesday in Sydney. Nothing loose or damaged. A few people have asked where I got it.
Good buy — fast shipping
Really good value — compared it to similar products at twice the price and there is very little difference in quality. Fast shipping and arrived in perfect condition.




