Acrylic Adhesives

- 3 -

Typical Adhesive

Performance

Characteristics

Product

3M™ Scotch-Weld™

3M™ Scotch-Weld™

Acrylic Adhesive

Acrylic Adhesive

DP805

DP820

Aluminum - etched

3500

3200

Aluminum - (etched/oily)

3500

2900

Aluminum - (120 grit sandpaper)

3200

3100

Aluminum - (solvent cleaned only)

900

300

Cold Rolled Steel (CRS)

2800

2500

CRS (oily)

2700

2400

Copper

900

—

Galvanized Steel

1300

1200

FR-4 Glass Epoxy

2500

2000

Fiberglass Reinforced Plastic

600

700

ABS

1000

1000

PVC

1750

1750

Polycarbonate

950

1150

Acrylic

1200

1250

Fir Wood

800

1200

Product

Scotch-Weld

Scotch-Weld

Acrylic Adhesive

Acrylic Adhesive

DP805

DP820

Control (no immersion)

2800

2500

Toluene

2650

NR

*

Machine Oil

2850

1950

IPA (isopropyl alcohol)

2650

1350

Gasoline

2750

1500

1,1,1-Trichloroethane

2550

NR

*

10% HCl

800

NR

*

MEK (methyl ethyl ketone)

<10

NR

*

Acetone

<10

NR

*

Product

Scotch-Weld

Scotch-Weld

Acrylic Adhesive

Acrylic Adhesive

DP805

DP820

Control (RT Aging)

2500

2000

248°F (120°C)/2 wks

2700

3300

194°F (90°C)/90% RH/2 wks

2600

1600

Tap Water 1 wk/RT

2200

1500

RT = Room Temperature

RH = Relative Humidity

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

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

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.