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Hapco Hapsil 360 Silicone rubber
Categories: Polymer; Thermoset; Silicone; Silicone Rubber

Material Notes: Hapsil 360 is a high tear strength, tin-catalyzed RTV-2 silicone rubber, which was designed for casting Hapco’s wide variety of rigid and flexible polyurethane resins. Hapsil 360 is not sensitive to inhibition, meaning it will cure at room temperature over virtually any surface. Hapsil 360 works well with clear and colorless casting resins that typically exhibit a sticky, uncured surface when cast against most silicones. It is easy to mix and de-air, and cures with minimal shrinkage. Hapsil 360 can be used with or without a release agent and is ideal for any application where a strong flexible rubber is required.

Information provided by Hapco, Inc.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.70 g/ccASTM D-4669
Viscosity 3450 - 3550 cPASTM D-4878
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 27 - 33ASTM D-2240
Tensile Strength 425 - 475 psiASTM D-638
Elongation at Break 400 - 450 %ASTM D-638
Tear Strength 100 - 150 pliASTM 624 Die C
 
Thermal PropertiesOriginal ValueComments
Shrinkage 0.10 %ASTM D-2566
 
Processing PropertiesOriginal ValueComments
Cure Time 1.00 - 3.00 hour
@Thickness 3.17 mm
Demold
Gel Time 60.0 - 120 min
@Load 0.100 kg
ASTM D-2971
 
Descriptive Properties
Color (cured)Light Pink
Mix Ratio100:5Weight
 100:5.6Volume

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PHAPCO145 / 317204

Specialty Compounds RTP Company

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