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Home » Product Directory » Chemicals » Chemical Auxiliary & Catalyst » Chemical Auxiliary » Lost Foam

Lost Foam

Lost Foam
Lost Foam
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Product Description

We specially produce STMMA copolymer resin series mold materials for foam lost casting, including STMMA, 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.

Ompared 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

Main specifications of technical performances of product:
1. STMMA Item
Index

Appearance
Opaque spherical granule

Range of particle size, ¦Ìm
200 ~ 800

Content of volatile %
¡Ý7.0

Content of moisture %
¡Ü 0.6

Main applications
Suitable for casting of aluminum, copper alloy, grey iron, nodular iron, alloy steel, mild steel and stainless steel.

2. STMMA-FC Item
Index

Appearance
Opaque semi-transparent spherical granule

Range of particle size, ¦Ìm
200 ~ 800

Content of volatile %
¡Ý 6.0

Content of moisture %
¡Ü 0.6

Main applications
Suitable for casting of aluminum, copper alloy, grey iron, common nodular iron piece and steel.

3. STMMA-FD Item
Index

Appearance
White semi-transparent spherical granule

Range of particle size, ¦Ìm
200 ~ 800

Content of volatile %
¡Ý 5.5

Content of moisture %
¡Ü0.6

Main applications
Suitable for casting of aluminum alloy and grey iron pieces

Pattern making of STMMA copolymer resin series
For the lost foam casting process, making of foamed plastic patterns is a very important link. No matter what resin granules are used, the patterns-making process is basically same and is shown as follows.

   
Trademark:  world wide
Company: Hangzhou Edo Import&Export Co., Ltd.

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