3M 551 Polyurethane Adhesive Sealant

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3M 551 Polyurethane Adhesive Sealant
Categories:	Polymer; Adhesive; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Adhesive
Material Notes:	3M™ 500-Series Polyurethane Construction Sealant, Polyurethane Sealant and Polyurethane Adhesive Sealant products are one component, moisture curing products which form permanent elastic bonds. They bond to a wide variety of materials including plastics, metals, fiberglass, and wood. They are formulated to have a wide variety of Shore A hardness, open times, and performance parameters to meet many application needs. Information provided by 3M
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Physical Properties	Metric	English	Comments

Density	1.17 g/cc	0.0423 lb/in³
Volatile Organic Compounds (VOC) Content	36.5 g/l	36.5 g/l

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	45	45	ASTM C661
Tensile Strength at Break	3.10 MPa	450 psi	ASTM D412
Elongation at Break	>= 600 %	>= 600 %	ASTM D412
100% Modulus	1.30 MPa @Strain 100 %	189 psi @Strain 100 %	ASTM D412

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	90.0 °C	194 °F
Minimum Service Temperature, Air	-40.0 °C	-40.0 °F

Processing Properties	Metric	English	Comments
Cure Time	1440 min	24.0 hour	Rate of Cure, 50% RH
Tack-Free Time	120 - 180 min	2.00 - 3.00 hour	50% RH

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PMM33161 / 167908

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