BJB Enterprises WC-565 A/B Clear Aliphatic Polyurethane Elastomer

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BJB Enterprises WC-565 A/B Clear Aliphatic Polyurethane Elastomer
Categories:	Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Elastomer, Unreinforced
Material Notes:	WC-565 A/B is a two-part, clear, colorless aliphatic-based polyurethane elastomer. It is recommended for use whenever a flexible, permanently transparent elastomer is required. It is UV light and oxidation resistant and can be easily tinted or pigmented to clean bright colors. WC-565 A/B does not contain MOCA, TDI, or MDA. In addition to being an excellent cast able product, it also functions well as an adhesive for bonding various substrates.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.02 g/cc	1.02 g/cc	Part B
	1.07 g/cc	1.07 g/cc	Part A
Density	1.02 g/cc	0.0368 lb/in³	ASTM D792-00
Brookfield Viscosity	310 cP @Temperature 25.0 °C	310 cP @Temperature 77.0 °F	Part B
	1100 cP @Temperature 25.0 °C	1100 cP @Temperature 77.0 °F	Mixed Part A & Part B
	4725 cP @Temperature 25.0 °C	4725 cP @Temperature 77.0 °F	Part A
Linear Mold Shrinkage	0.0040 cm/cm	0.0040 in/in	@ 1" depth; ASTM D2566
Storage Temperature	18.3 - 26.7 °C	65.0 - 80.0 °F

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	60 - 70	60 - 70	ASTM D2240-04e1
Tensile Strength	5.19 MPa	753 psi	ASTM D412-98a(2002)e1
Elongation at Break	200 %	200 %	ASTM D412-98a(2002)e1
Tear Strength	10.3 kN/m	59.0 pli	ASTM D624-00e1

Electrical Properties	Metric	English	Comments
Dielectric Constant	3.483 @Frequency 1e+6 Hz	3.483 @Frequency 1e+6 Hz	ASTM D150-87
Dissipation Factor	0.061 @Frequency 1e+6 Hz	0.061 @Frequency 1e+6 Hz	ASTM D150-87

Processing Properties	Metric	English	Comments
Processing Temperature	<= 93.3 °C	<= 200 °F	Max cure temp.
Cure Time	60.0 - 180 min @Temperature 25.0 °C	1.00 - 3.00 hour @Temperature 77.0 °F	Step 1 recommended high temp cure (as tested).
	960 min @Temperature 71.1 °C	16.0 hour @Temperature 160 °F	Step 2 recommended high temp cure (as tested).
	7200 - 10100 min @Temperature 25.0 °C	120 - 168 hour @Temperature 77.0 °F	Optional low temp cure
Working Life	15.0 min @Temperature 25.0 °C	15.0 min @Temperature 77.0 °F	100 g.
Gel Time	20.0 min	20.0 min
Shelf Life	6.00 Month	6.00 Month	Stored at recommended temperatures. Purge opened containers with dry nitrogen before resealing.

Descriptive Properties
Color / Appearance	Colorless		Part A
	Colorless		Part B
	Colorless/clear		Cured
Demold Time (hrs)	6 - 8		@ 77°F
Mix Ratio by volume	95 to 100		Part A to Part B.
Mix Ratio by weight	100 to 100		Part A to Part B

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.

PBJB9922 / 287702

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