Firewall II is an inert product and is nontoxic. It has passed both the USFS uniform and intergranular corrosion tests and is certified for use in fixed tank and bucket helicopters and SEATs.
Firewall II is a homogeneous solution that is no more corrosive than water. It will not damage gauges, valves or plumbing on engines and water tenders. It is 99.5% water at a blended rate of 0.5%. Equipment can be easily clenaded at the end of the day with a water rinse.
Care should be taken when gel is applied to hard surfaces, as they may become slippery.
Cleanup of hands, clothing, and equipment is accomplished with a rinse of fresh water, and some rubbing. Dilution is the solution. Stubborn items can be soaked in water for a time, and then rinsed with clean water.
Approved on the USDA Forest Service Qualified Products List
Contains no ammonia, phosphates or nitrogen
Contains no bio-available ingredients
USFS has found it to be “practically harmless to young rainbow trout”
Fully degrades in 28 days of sunlight exposure
Is 99.5% water when blended at 0.5%
Buckets, tanks, equipment and aircraft are easily cleaned with a water rinse