Subject: White Powder
The powder on FORMEX GK, FORMEX, FORMEX EP and STATEX are a combination of
the flame retardants and heat stabilizers which give FORMEX GK, FORMEX, FORMEX EP
and STATEX their excellent.The powder actually is coming to the surface of the material in
response to the heat. It is supposed to do this. Therefore, if a point is exposed to high heat
from nearby fire the material on the surface will retard the ignition of the material. If the
flame, Such as in UL94 vertical burn test, is bought into contact with the material the flame
retardants become consumed causing the extinguishing of the material when the source of
flame is removed.Need to pointed out: This phenomenon is always existing. It is faster in
higher temperature,and it is slower in lower temperature.
A very small amount of additives in the material will migrate to the surface,so materials
properties are not affected by this phenomenon and continue to meet product specification.