Expandable Stmma Copolymer Resin Application: Lost Foam Cast

With a sole aim in delivering quality products we are the prominent Exporter & Manufacturer of Expandable STMMA Copolymer Resin in Quzhou Zhejiang China.
STMMA copolymer resin series mold materials for lost foam casting including STMMASTMMA STMMA-FD and STMMA-FC foamable copolymer resin beads and they are mainly used to produce castings for valves pipings car fittings and various machinery fittings.

Compared with EPS STMMA series foamable copolymer resin beads have much excellent casting performances:
Reducing carbon defect of castings;
Reducing carburization defect on surface of steel castings;
Reducing smoke carbon;
Improving surface finish of castings

Aimed at these shortcomingswe self-developed a new series copolymer resin STMMA-FD.It can solve the low molecular weightlow intensity and rigidity problem of the EPSand reduce the carburization during casting.The STMMA-FD could be most used medium-grade or low-grade foundry products such as grey iron and aluminium alloy.After the practice of production in many domestic lost foam casting foundrieswith same process as using EPS in the prefoamingagingpattern making and coating drying the STMMA resin beads greatly improved the stabilityintensity and surface smoothness of the castings.The carburization defects had been also reduced percent of qualification rate are increased 36%.