WHAT ARE THE TYPES OF FILLERS USED IN POLYURETHANE RIGID FOAM?

Types of fillers used in polyurethane rigid foam

There are many kinds of fillers used in polyurethane rigid foam, such as expanded graphite, powdered nylon, silica, glass fiber, etc. The filler used in polyurethane foam must be dried before use. When applied to a water foaming system, its moisture content must be measured.