NuSil MED-4770 Ultra High Performance High Consistency Elastomers

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NuSil MED-4770 Ultra High Performance 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: Abrasion/Fatigue Resistant Cure System: Platinum Information provided by NuSil
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Physical Properties	Metric	English	Comments

Specific Gravity	1.19 g/cc	1.19 g/cc

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	70	70	Typical
	65 - 75	65 - 75	Certified
Tensile Strength at Break	6.90 MPa	1000 psi	Certified
	9.00 MPa	1310 psi	Typical
Tensile Stress at Strain	4.14 MPa @Strain 100 %	600 psi @Strain 100 %
Elongation at Break	500 %	500 %	Certified
	700 %	700 %	Typical
Tear Strength	43.8 kN/m	250 pli	Certified
	50.0 kN/m	285 pli	Typical

Processing Properties	Metric	English	Comments
Cure Time	10.0 min @Temperature 138 °C	0.167 hour @Temperature 280 °F
	240 min @Temperature 177 °C	4.00 hour @Temperature 351 °F	Post
Working Life	120 min @Temperature 25.0 °C	120 min @Temperature 77.0 °F

Descriptive Properties
Plasticity	110 mils

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PNUSIL316 / 142040

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