Cel-Span® CFA 899

Mixture of polycarbonic acids and carbonates. Cel-Span® CFA 899 is a 40% active endothermic foaming agent concentrate recommended for extrusion applications for a variety of thermoplastic resins such as polyethylene, polypropylene, styrene, MPPO, and ABS. Cel-Span® CFA 899 is recommended for extrusion, and structural foam molding of applications that require a very fine cell structure compared to a typical endothermic foaming agent in aesthetic applications.