- Chemical Name:Calcium Borate
- Chemical Family:Calcium & Calcium Compounds
- Functions:Flame Retardant
Portaflame® CA 25 grade is produced from carefully selected colemanite, which is a naturally occurring hydrated calcium borate. This light gray powder is odorless and decomposes at 340°C. It is used as a flame retardant for paints, polymers, rubber, and bitumen.