• Description for 3M DP825 Scotch-Weld Acrylic Adhesive

    Two-part, 1:1 mix ratio, toughened acrylic structural adhesives. Exhibit excellent shear and peel strengths.

    *See Terms of Use Below

    Application Type Bond
    1 Part or 2 Part 2 Part
    Material Form Liquid
    Substrate Aluminum etched, Ceramics, Glass, Many metals, Most plastics, Green Fiberglass Reinforced Plastic, Rubber, Cold-Rolled Steel, Stainless Steel, Wood, Aluminum abraded, Cold-Rolled Steel – slightly oily, Aluminum bare, Cold-Rolled Steel (CRS) – solvent cleaned
    Manufacturer 3M
    Chemistry Acrylic
    Cure Method 2-Part Cure
    Cure Temperature (°C) 23
    Cure Time (min) 240 to 1,440
    Viscosity (cPs) Non-sag
    Color Pale yellow
    Chemical Resistance Tap water, Bleach solution, IPA (isopropyl alcohol), Unleaded gasoline, Diesel fuel, Antifreeze, Toluene, MEK (methyl ethyl ketone), Acetone
    High Temperature Resistance (°C) 24, 49, 82
    Low Temperature Resistance (°C) -55
  • Technical Data

    Overview
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    Specifications
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  • Best Practices

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Fixture or Handling Strength Time Test Methods
Fixture or Handling Strength Time Fixture-Handling Strength Test Method
25 to 35 min Time to achieve approximate 50 psi Overlap Shear Strength (OLS) when cured at (73°F) 23°C.
Set Time Test Methods
Set Time Set Temperature
1,440 min 23°C
Work / Pot Time Test Methods
Work / Pot Time Test Method Temperature
25 min
24 to 26 min Approximate time during which material can remain in a mixer nozzle and still be expelled without undue force on the applicator 23°C
Shear Strength Test Methods
Shear Strength Type Cure Time Cure Temperature Cure Humidity Substrate Chemical Test Time Test Temperature Test Method
Excellent
3,850 psi Overlap Shear Strength 10,080 min 23°C 50 % Aluminum – etched 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" pieces of substrates. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before tested. The separation rate of the testing jaws was 0.1 inch per minute for metals and 2 inches per minute for plastics, Adhesive failure
3,925 psi Overlap Shear Strength 10,080 min 23°C 50 % Aluminum – abraded, 150 grit sandpaper 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" pieces of substrates. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before tested. The separation rate of the testing jaws was 0.1 inch per minute for metals and 2 inches per minute for plastics, Cohesive failure
4,100 psi Overlap Shear Strength 10,080 min 23°C 50 % Aluminum – bare 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" pieces of substrates. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before tested. The separation rate of the testing jaws was 0.1 inch per minute for metals and 2 inches per minute for plastics, Adhesive failure
3,025 psi Overlap Shear Strength 10,080 min 23°C 50 % Cold-Rolled Steel (CRS) – solvent cleaned 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" pieces of substrates. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before tested. The separation rate of the testing jaws was 0.1 inch per minute for metals and 2 inches per minute for plastics, Adhesive failureOverlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" pieces of substrates. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before tested. The separation rate of the testing jaws was 0.1 inch per minute for metals and 2 inches per minute for plastics, Cohesive failure
2,600 psi Overlap Shear Strength 10,080 min 23°C 50 % Cold-Rolled Steel – slightly oily 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" pieces of substrates. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before tested. The separation rate of the testing jaws was 0.1 inch per minute for metals and 2 inches per minute for plastics, Adhesive failure
3,875 psi Overlap Shear Strength 10,080 min 23°C 50 % Stainless Steel 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" pieces of substrates. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before tested. The separation rate of the testing jaws was 0.1 inch per minute for metals and 2 inches per minute for plastics, Adhesive failure
2,625 psi Overlap Shear Strength 10,080 min 23°C 50 % Green Fiberglass Reinforced Plastic 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" pieces of substrates. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before tested. The separation rate of the testing jaws was 0.1 inch per minute for metals and 2 inches per minute for plastics, Substrate failure
950 psi Overlap Shear Strength 10,080 min 23°C 50 % Acrylic 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" pieces of substrates. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before tested. The separation rate of the testing jaws was 0.1 inch per minute for metals and 2 inches per minute for plastics, Substrate failure
1,400 psi Overlap Shear Strength 10,080 min 23°C 50 % Polyvinylchloride (PVC) 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" pieces of substrates. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before tested. The separation rate of the testing jaws was 0.1 inch per minute for metals and 2 inches per minute for plastics, Substrate failure
1,025 psi Overlap Shear Strength 10,080 min 23°C 50 % Polycarbonate (PC) 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" pieces of substrates. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before tested. The separation rate of the testing jaws was 0.1 inch per minute for metals and 2 inches per minute for plastics, Substrate failure
1,050 psi Overlap Shear Strength 10,080 min 23°C 50 % Acrylonitrile Butadiene Styrene (ABS) 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute
4,800 psi Overlap Shear Strength 10,080 min 20 to 25°C Room Temperature 50 % Etched Aluminum Control (no immersion) 604,800 sec Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute
6,800 psi Overlap Shear Strength 66°C 50 % Etched Aluminum 604,800 sec Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C)except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute
2,175 psi Overlap Shear Strength 66°C 50 % Etched Aluminum Tap water 604,800 sec Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute
4,850 psi Overlap Shear Strength 50 % Etched Aluminum 20% Bleach solution 604,800 sec Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute
3,825 psi Overlap Shear Strength 50 % Etched Aluminum IPA (isopropyl alcohol) 604,800 sec Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute
2,525 psi Overlap Shear Strength 50 % Etched Aluminum Unleaded gasoline 604,800 sec Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute
4,400 psi Overlap Shear Strength 50 % Etched Aluminum Diesel fuel 604,800 sec Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute
4,650 psi Overlap Shear Strength 50 % Etched Aluminum 50% Antifreeze 604,800 sec Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute
800 psi Overlap Shear Strength 50 % Etched Aluminum Toluene 604,800 sec Overlap Shear (ASTM D1002-64, 3M Test Method C-236) strength was measured on 1 in. wide x 1/2 in. overlap specimens. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". Bonds were allowed to cured for 7 days @ 73°F (23°C) and approximately 50% RH before tested. The separation rate of the testing jaws was 0.1 inch per minute.
2,675 psi Overlap Shear Strength 10,080 min -55°C 50 % Etched Aluminum MEK (methyl ethyl ketone) -55°C Overlap Shear (ASTM D1002-64, 3M Test Method C-236) strength was measured on 1 in. wide x 1/2 in. overlap specimens. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". Bonds were allowed to cured for 7 days @ 73°F (23°C) and approximately 50% RH before tested. The separation rate of the testing jaws was 0.1 inch per minute.
4,475 psi Overlap Shear Strength 10,080 min 24°C 50 % Etched Aluminum Acetone 24°C Overlap Shear (ASTM D1002-64, 3M Test Method C-236) strength was measured on 1 in. wide x 1/2 in. overlap specimens. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". Bonds were allowed to cured for 7 days @ 73°F (23°C) and approximately 50% RH before tested. The separation rate of the testing jaws was 0.1 inch per minute.
2,625 psi Overlap Shear Strength 10,080 min 49°C 50 % Etched Aluminum 49°C Overlap Shear (ASTM D1002-64, 3M Test Method C-236) strength was measured on 1 in. wide x 1/2 in. overlap specimens. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". Bonds were allowed to cured for 7 days @ 73°F (23°C) and approximately 50% RH before tested. The separation rate of the testing jaws was 0.1 inch per minute.
1,000 psi Overlap Shear Strength 10,080 min 82°C 50 % Etched Aluminum 82°C
Peel Strength Test Methods
Peel Strength Substrate Test Time Test Temperature Test Method
Excellent
28 piw Etched Al / Etched Al 10,080 min 23°C Aluminum/aluminum bonds tested per 3M Test method C-439 @ 20 inches/minute at 73°F (23°C), substrates of 1" wide x 0.020" thick and 1" wide x 0.063" thick and adhesive bond line thickness of approx. 0.017"
General Bond Strength Test Methods
General Bond Strength Cure Temperature Substrate Test Time Test Temperature Test Method
30 psi 24°C Etched Aluminum 15 min 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute.
1,915 psi 24°C Etched Aluminum 20 min 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute.
3,800 psi 24°C Etched Aluminum 60 min 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute.
4,305 psi 24°C Etched Aluminum 120 min 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute.
4,300 psi 24°C Etched Aluminum 240 min 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute.
4,515 psi 24°C Etched Aluminum 1,440 min 23°C Overlap Shear (ASTM D-1002-64, 3M Test Method C-236) strength was measured on 1" wide x 1/2" overlap specimen. These bonds were made individually using 1" x 4" coupons. The thickness of the adhesive bond line was approximately 0.005". All strengths were measured at 73°F (23°C) except when noted, and samples were allowed to cure at 75°F (24°C) and approximately 50% RH for 1 week before immersed. The separation rate of the testing jaws was 0.1 inch per minute.
Shore D Hardness Test Methods
Shore D Hardness Shore Hardness Test Method
70 ASTM D2240. Specimen were cured for a minimum of 24 hours @ 73°F (23°C) before tested