Acrylic Adhesives

- 4 -

Typical Adhesive

Performance

Characteristics

(continued)

Product

Scotch-Weld

Scotch-Weld

Acrylic Adhesive

Acrylic Adhesive

DP805

DP820

-67°F (-55°C)

2500

3100

73°F (23°C)

3500

3150

180°F (83°C)

2200

1900

200°F (93°C)

—

1450

Overlap Shear

Product

Scotch-Weld

Scotch-Weld

Acrylic Adhesive

Acrylic Adhesive

DP805

DP820

Etched Alum (Oily)

3500

1650

120°F (49°C)/100% RH/4 wks

Etched Alum

3300

1000

200°F (93°C)/100% RH/2 wks

CRS (Oily)

2600

1150

120°F (49°C)/100% RH/2 wks

Note: The following technical information and data should be considered representative

or typical only and should not be used for specification purposes.

Product

3M™ Scotch-Weld™

3M™ Scotch-Weld™

Acrylic Adhesive

Acrylic Adhesive

DP805

DP820

Control (RT Aging)

2800

2500

248°F (120°C)/2 wks

500

300

194°F (90°C)/90% RH/2 wks

2200

850

Tap Water 1 wk/RT

2500

850

RT = Room Temperature

RH = Relative Humidity

14. Overlap Shear (ASTM D-1002-64) (3M TM C-236) strengths were measured on 1 in. wide 1/2 in. overlap specimens. These bonds were

made individually using 1 in. x 4 in. pieces of substrate. The thickness of the bond line was 0.005 - 0.008 in. All strengths were measured

at 73°F (23°C) except when noted. The separation rate of the testing jaws was 0.1 in. per minute for metals, 2 in. per minute for plastics

and 20 in. per minute for rubbers. The thickness of the substrates were: steel 0.035 in.; other metals: 0.05-0.064 in.; rubbers, 0.125 in.;

plastics, 0.125 in.