Insulating foams requiring flame retardancy are mainly used in
Building and Construction, Transportation, Industrial refrigeration, and
Engineering applications. The selection of the polymer depends on the service
temperature, the chemical resistance and the density flexibility of the foam.
Main thermoplastic polymers used in insulating foams are: Polyethylene (and
copolymers), Polypropylene, PVC. The foaming can be done either by addition of
chemical blowing agents or by injection of gases (physical blowing agents). Foaming is a complex process where the temperature and the rheology are critical
parameters.
ATH and MDH stand out as an excellent choice for flame retarded insulating foam applications
Benefits of MDH or ATH in insulating foams applications
Halogen
free formulation No volatile (long lasting FR) Good chemical resistance Good weatherability No interaction with other additives
(Chemical Blowing agents...)
Can act as a nucleator Adjustable rheology by selecting
the right particle size distribution and the adapted surface treatment
Halogen
free formulation
