Promoter Product description This promoter is normally used with our TC-191 resin, application dosage is 0.5%-2.5% .It is widely used in hand layup process FRP products, filament winding process FRP, and shower room base. Cobalt accelerator for general purpose unsaturated polyester resin。 Appearance: clear purple liquid Resin casting body color: original resin color II. Storage There will be a certain quantity loss after a period time of storage . The recommended highest storage temperature (Ts max) is as bellow in order to minimize the quantity loss. …