3M Scotch™ 2228 Rubber Mastic Tape

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3M Scotch™ 2228 Rubber Mastic Tape
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	3M™ Scotch™ 2228 is a conformable self-fusing rubber electrical insulating sealing tape. Scotch 2228 consist of an ethylene propylene rubber (EPR) backing coated with an aggressive, temperature-stable mastic adhesive. The tape is made 65 mils (1.65 mm) thick for quick application build-up. It is designed for electrical insulating and moisture sealing applications. Scotch 2228 can be used on copper or aluminum conductors rated at 90°C, with an emergency overload rating of 130°C. It offers excellent resistance to moisture and ultraviolet exposure and is intended fro both indoor and weather exposed outdoor applications. Information provided by 3M
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Physical Properties	Original Value	Comments

Water Absorption	0.15 %	ASTM D570
Water Vapor Transmission	1.55 g/m²/day	ASTM D3833
Thickness	65.0 mil	ASTM D4325

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	1.03 MPa	ASTM D4325
Elongation at Break	1000 %	ASTM D4325
Peel Strength	0.625 pli	Adhesion to Polyethylene; ASTM D1000
	0.9375 pli	Adhesion to Steel; ASTM D1000

Electrical Properties	Original Value	Comments
Dielectric Constant	3.5	ASTM D4325
Dielectric Strength	500 kV/in	Dry; ASTM D4325
	500 kV/in	Wet; ASTM D4325

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	90.0 °C

Descriptive Properties
Appearance	Black

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PMM35182 / 169929

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