Overview: SM - 656 is used for polymer wetting dispersant, BMC/SMC products in unsaturated resin system, used to wetting inorganic fillers such as calcium carbonate, aluminum hydroxide, etc., has a significant effect of viscosity, obviously improve the product surface flatness and the compactness of the product.
Chemical composition: polyester polymer compounds
Physical properties:
Outside view (visual) : light yellow viscous liquid
Non-volatile components: 99 + / - 1%
Weight: 1.10 g/cm3
Chroma (Gardner) < 5
PH: 2.0 to 4.0
Can work:
Can obviously reduce the interfacial tension between the pigment and the resin, the lower the viscosity of the system, make it easier for interoperability.Especially for calcium carbonate grinding dispersion, good wettability.Color can increase fillers show, more can improve its covering power.
Grinding time can be shortened, and improve the grinding efficiency.
Application: apply to BMC SMC unsaturated polyester and epoxy resin system
Recommended usage: for optimal performance, SM - 656 should be in the grinding (mixing) phase before add pigment to join.
The following content based on the amount of active ingredient of pigment dispersant proportion:
Inorganic pigments (titanium dioxide, iron oxide, etc.) : 0.5-5%
Packing: 0.2 to 2%

Safety and operation: operation should strictly comply with the industrial chemical production specifications, with reference to the product's safety data sheet for more information.
Storage: should be stored in a cool, dry place, suitable for 5-25 ℃ environment.Good packaging products quality assurance period for 2 years from production date.
Packing: 25 kg/barrel 200 kg/barrel.