3M 3501 B/A

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Description for 3M 3501 B/A

Fast cure rigid epoxy • 20-30 minutes handling strength • Bond metal, wood, most plastics, and masonry products

Chemical Resistance	Salt spray, Chemical Resistance: Fluid Resistance: Tap Water
Application Type	Bond
1 Part or 2 Part	2 Part
Material Form	Liquid
Substrate	Aluminum, Glass, Metal, Plastic, Rubber, Cold rolled Steel, Wood, 2024 T-3 clad aluminum , 2024 T-3 clad FPL etched aluminum , Steel
Manufacturer	3M
Chemistry	Epoxy, Amine
Application Method	Spatula, Trowel
Cure Method	Base/Accelerator
Cure Temperature (°C)	25, 24, 64 to 68
Cure Time (min)	Fast, 1,440, 15, 10
Viscosity (cPs)	500,000, Controlled flow
Color	Gray
High Temperature Resistance (°C)	82
Low Temperature Resistance (°C)	-55
Density (g/cm³)	12.4 to 12.8 (weight (lbs/gal)), 11.7 to 12.1 (weight (lbs/gal))

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Fixture or Handling Strength Time Test Methods

Fixture or Handling Strength Time	Fixture-Handling Strength Time Temperature
20 to 30 min	24°C

Viscosity Test Methods

Viscosity	Test Method
500,000 cPs	Brookfield RVF, #7 spindle, 2 RPM at 75°F 24°C
Controlled flow

Work / Pot Time Test Methods

Work / Pot Time	Test Method	Temperature
6 to 10 min	20.5 g. mass	24°C
6 min

Peel Strength Test Methods

Peel Strength	Type	Substrate	Test Temperature	Test Method
4 piw	T-peel Strength	Aluminum	24°C	T-Peel bonds were measured on 1" wide specimens cut from two FPL etched 8" x 8" x 0.032", 2024 T-3 clad aluminum panels bonded together. The separation rate of the testing jaws was 20"/minute. Tests similar to ASTM D-1876.
10 piw	T-peel Strength	Steel	24°C	T-Peel bonds were measured on two 1" wide specimens of 0.035" cold rolled steel bonded together. The steel was prepared by MEK wiping, abrading and MEK wiping. The separation rate of the testing jaws was 20"/minutes. Tests similar to ASTM D-1876.

Shear Strength Test Methods

Shear Strength	Type	Cure Time	Cure Temperature	Substrate	Test Temperature	Test Method
High
1,500 psi	Overlap shear strength			2024 T-3 clad aluminum	-55°C	Overlap shear strength was measured on FPL etched 1" wide by 1/2" overlap specimens. The bonds were made from 2 panels of 4" x 7" x 0.063", 2024 T-3 clad aluminum bonded together and cut into 1" wide specimens. The separation rate of the testing jaws was 0.1"/minute. Tests similar to ASTM D-1002.
2,400 psi	Overlap shear strength			2024 T-3 clad aluminum	24°C	Overlap shear strength was measured on FPL etched 1" wide by 1/2" overlap specimens. The bonds were made from 2 panels of 4" x 7" x 0.063", 2024 T-3 clad aluminum bonded together and cut into 1" wide specimens. The separation rate of the testing jaws was 0.1"/minute. Tests similar to ASTM D-1002.
300 psi	Overlap shear strength			2024 T-3 clad aluminum	82°C	Overlap shear strength was measured on FPL etched 1" wide by 1/2" overlap specimens. The bonds were made from 2 panels of 4" x 7" x 0.063", 2024 T-3 clad aluminum bonded together and cut into 1" wide specimens. The separation rate of the testing jaws was 0.1"/minute. Tests similar to ASTM D-1002.
1,000 psi	Overlap shear strength			Cold rolled steel	-55°C	Overlap shear strength was measured on 1" wide by 1/2" overlap bonds of 0.035" cold rolled steel. The steel was prepared by MEK solvent wiping, abrading and MEK wiping. The separation rate of the testing jaws was 0.1"/minute. Tests similar to ASTM D-1002.
2,000 psi	Overlap shear strength			Cold rolled steel	24°C	Overlap shear strength was measured on 1" wide by 1/2" overlap bonds of 0.035" cold rolled steel. The steel was prepared by MEK solvent wiping, abrading and MEK wiping. The separation rate of the testing jaws was 0.1"/minute. Tests similar to ASTM D-1002.
150 psi	Overlap shear strength			Cold rolled steel	82°C	Overlap shear strength was measured on 1" wide by 1/2" overlap bonds of 0.035" cold rolled steel. The steel was prepared by MEK solvent wiping, abrading and MEK wiping. The separation rate of the testing jaws was 0.1"/minute. Tests similar to ASTM D-1002.
400 psi	Overlap shear strength	20 min	24°C	2024 T-3 clad FPL etched aluminum		The following data was developed in overlap shear on 2024 T-3 clad FPL etched aluminum curing the adhesive at 75°F (24°C) for the times specified. Test similar to ASTM D-1002.
500 psi	Overlap shear strength	30 min	24°C	2024 T-3 clad FPL etched aluminum		The following data was developed in overlap shear on 2024 T-3 clad FPL etched aluminum curing the adhesive at 75°F (24°C) for the times specified. Test similar to ASTM D-1002.
750 psi	Overlap shear strength	60 min	24°C	2024 T-3 clad FPL etched aluminum		The following data was developed in overlap shear on 2024 T-3 clad FPL etched aluminum curing the adhesive at 75°F (24°C) for the times specified. Test similar to ASTM D-1002.
900 psi	Overlap shear strength	90 min	24°C	2024 T-3 clad FPL etched aluminum		The following data was developed in overlap shear on 2024 T-3 clad FPL etched aluminum curing the adhesive at 75°F (24°C) for the times specified. Test similar to ASTM D-1002.

Coefficient of Thermal Expansion (CTE) Test Methods

Coefficient of Thermal Expansion (CTE)	CTE Temperature (°C)
60e-6 (in./ in/°C)	-50 to -10°C
234e-6 (in./ in/°C)	-50 to -110°C

3M 3501 B/A

Description for 3M 3501 B/A