Parts of Southern California are covered with pink fire retardant as firefighters try to control deadly wildfires raging in ...

Chek, a bright pink fire retardant, to combat wildfires threatening lives and property. Developed by Perimeter ...

Phos-Check is a brand of long-term fire retardant that has been used to fight fires since the 1960s. It is said to contain ...

The powdered substance sprayed over the California wildfires is called Phos-Chek. It contains ammonium phosphate — an ...

As fire crews and air tankers work to block the wildfires' explosive growth, images of red clouds of fire retardant falling onto trees are common. What is it — and what's in it?

If you’ve ever wanted to know what that red liquid that’s dropped from firefighting aircraft is, then we’ve got the answer!

The study included Phos-Chek LC95W, which is an older Phos-Chek ... are mostly ammonium phosphate fertilizer and a few other ingredients mixed with water. Perimeter Solutions doesn't publicly ...