NuSil MED-4750 Two-Part Standard High Consistency Elastomers

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NuSil MED-4750 Two-Part Standard High Consistency Elastomers - Unrestricted Medical Use
Categories:	Polymer; Thermoset; Silicone; Silicone Rubber
Material Notes:	Description: High consistency rubber, or HCR, consists of high molecular weight polymer combined with silica to produce a material that can be molded, extruded, or calendared into a useful end product. An HCR has the consistency of clay and is primarily formulated in a one or two part system (peroxide and platinum catalysts, respectively). Important Properties of Adhesives: Most platinum cure high consistency rubbers are two component systems with an easy-to-work-with 1:1 mix ratio. Features of platinum cure high consistency rubbers include the following: Two part (typically) Heat accelerated No byproducts Post cure optional Low percent shrinkage Comments: High Tear Cure System: Platinum Information provided by NuSil
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Physical Properties	Metric	English	Comments

Specific Gravity	1.16 g/cc	1.16 g/cc

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	50	50	Typical
	45 - 55	45 - 55	Certified
Tensile Strength at Break	8.30 MPa	1200 psi	Certified
	10.0 MPa	1450 psi	Typical
Tensile Stress at Strain	2.07 MPa @Strain 200 %	300 psi @Strain 200 %
Elongation at Break	750 %	750 %	Certified
	1000 %	1000 %	Typical
Tear Strength	35.1 kN/m	200 pli	Certified
	43.8 kN/m	250 pli	Typical

Processing Properties	Metric	English	Comments
Cure Time	10.0 min @Temperature 116 °C	0.167 hour @Temperature 241 °F
Working Life	120 min @Temperature 25.0 °C	120 min @Temperature 77.0 °F

Descriptive Properties
Plasticity	100 mils

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PNUSIL312 / 142036

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