BellPearl® Series are non-toxic, high performance phenolic resins with perfectly spherical shape. They are part of KOWA’s Micro-sphere series which is characterized with high molecular weight and low cross-linking density.
- S type : A hot melt ,self curing type. Soluble in solvents. Used as binder resins for moldings. Also used as thermo-setting resin.
- R type : Does not melt with heat. Cured type. Insoluble in solvents. Used as reactive organic filler to , for instance , improve thermal resistance of matrix.
- C type : Amorphous carbon particulates obtained by carbonizing Rtype Bellpearl. Used as filler to improve electric conductivity and frictional properties of matrix.