FMC® 205

About
FMC ® -205 is a polysulfide rubber mold compound that cures overnight with negligible shrinkage to a lasting durable rubber that will perform in production. The mix ratio is 100 parts of Part A to 12 parts of Part B by weight. FMC ® -205 cures to a Shore hardness of 12 A. FMC ® -205 is ideal for those applications that require capturing intricate detail from a variety of model surfaces. Unlike polyurethanes, FMC ® -205 is not sensitive to moisture and can be poured directly over wet plaster or water/sulfur based clays. Common applications include molds of sculpture (lost wax process), casting various gypsum products and waxes.&&

Product Description
Generic多硫化橡胶
Material StatusCommercial: Active
FeaturesLow contractility,Moisture resistance,Durability
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe
Process Methodscasting

Technical Data
PHYSICALNominal valueUnitTest method
Density1.38g/cm³ASTM D792
Specific volume0.726cm³/g

MECHANICALNominal valueUnitTest method
Shore hardness
Shaw’s A12 ASTM D2240

elastic bodyNominal valueUnitTest method
tensile strength
fracture0.414MPaASTM D412
100% strain0.103MPaASTM D412
Tensile strain
fracture550%ASTM D412

THERMALNominal valueUnitTest method
storage stability90min

Thermosetting mixed viscosityNominal valueUnitTest method
stripping time
23℃960min

Supplementary informationNominal valueUnitTest method
Mixing ratio100A:12B by weight 

Notes
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