Master FX Master Flame Class A Fire Retardant for Wood & Fabric, 1 Gallon

Did a test on an old piece of wood. It seems to really work. Remember it is a fire retardant not fire proof

Couldn’t be easier to apply, covers a lot of area thoroughly. Haven’t tested its fire resistance however. Appreciate that the chemicals don’t seem particularly dangerous to work with.

I bought this to mix with paint to paint my exposed basement posts, beams, and joists. I mixed a full gallon of this with a little less than a gallon of latex paint. I did a couple tests on some scrap boards first, and it didn't work when I first tried it, but I missed the part about waiting 24 hours. Tried it again the next day and board turned a little brown, but would not burn and hardly even smoked. This seems to work exactly as described and is way better than nothing. I used a small foam roller to apply this to the exposed wood in my basement, to give it a nicer finished look, while adding fire protection without having to wrap everything in a bunch of drywall. This product makes the paint super thin and watery, and it drips EVERYWHERE, so I ended up masking things off almost as much as i would have if spraying. Also, because of how thin it is, it takes many many coats to achieve a uniform opaque color. I think I did 5 coats before I couldn't see the old paint colors where some of the wood had been painted decades ago. This product also separates from paint really easily, so you have to keep mixing it throughout your project if using very much. It probably separates as much as 90% after sitting for just an hour, and after being left overnight I could probably pour the Master Flame back into the bottle, leaving the paint behind. I'm glad i found this product as it's saving me from having to wrap things in metal or drywall, and gave me justification for painting the entire basement ceiling (instead of just the areas that were previously painted blue, green, or cream. I used up the first jug and just bought another, I'll probably need a 3rd to finish the entire project, it's an 1100sf basement with 100 year old wood that sucks up the first 2 coats of paint. I took 1 star off for how thin it makes the paint and how quickly it separates. It would be nice if they had a thickening agent you could add or they could get it to bond with the paint.

Flame tested and this product is great. Sprayed with HVLP gun on seat material and wool product. Will not burn even with constant fire by blowtorch.

We spray it on and let it dry. Flip them over rand spray the other side and let it dry. They are a little stiff when we are done but loosen up after a while. Don't know if it works, we haven't had a fire. I guess this is a good thing. The video that shows the testing of the product was impressive. We document the use of the product so it can be showen to the fire Marshall or life safety inspector.

Can't speak to flame retardent effectiveness but drip areas or places where liquid collects dry bright white left white spots on plywood where large droplets dried probably best to apply thin coats on flat laying surfaces.

I had to buy this to pass my life safety inspection We placed the master fire in all beams to ensure fire resistance. This product can be layered to increase fire rating. One coat does a 30 minute fire rating.

The instructions are to mix 1-to-1 with latex paint when used in this manner. This means you end up with two gallons of very thin paint which spreads almost like thin whitewash. I used a roller to apply two coats on some OSB interior walls after priming and before a final coat of regular interior latex. Due to its runniness, the paint/retardant mix is very messy to use. It also doesn't hide well -- remember that once mixed, the amount of pigment per volume has been halved. The mixture does dry quickly and adheres well to primed wood. The paint mix would would be easier to apply using a sprayer.

Thank you for this excellent product. It is very light and easy to apply, and the wood absorbed it completely without leaving any residue. The material was tested using the ignitability test according to BS EN ISO 11925-2:2020, and it performed very well.