Master Flame - Class A Fire Retardant - 1 Gallon

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.

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.

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.

Used this as a seal coat on wall framing , sheetrock and wood trim. I made treated and untreated samples of the framing wood, sheetrock and painted wallpaper on sheetrock. They were tested by the local fire department. The untreated samples burned easily, but the treated pieces were difficult to burn.