The material selection platform
Plastics & Elastomers
The material selection platform
Plastics & Elastomers
by SpecialChem
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TPSiV™ 4100-70A

TPSiV™ 4100-70A by Multibase (Dow Corning) is a soft silky, thermoplastic silicone vulcanizate (TPSiV) elastomer. Exhibits bondability, scratch resistance, low compression set, good abrasion resistance and mechanical properties. Shows excellent bonding to polycarbonate (PC), acrylonitrile butadiene styrene (ABS) and similar polar substrates. Provides mar resistance, low emissions and volatiles. Designed for overmolding injection molding process. TPSiV™ 4100-70A is recommended for seals, enclosures, consumer electronics, mobile communication devices, computers, sports and leisure applications.
Product Type
TPSiV (Thermoplastic Silicone Vulcanizate)
Physical Form
Product Status

TPSiV™ 4100-70A Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)
13 g/10 min
(At 190°C, 10.0 kg)
ISO 1133
Linear Mold Shrinkage
1.0 - 3.0 %
( )
1.18 g/cm³
( )
ISO 1183

TPSiV™ 4100-70A Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Drying Temperature
65.0 - 80.0 °C
Drying Time
2.0 - 4.0 hrs
Rear Temperature
165 - 175 °C
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