Epoxy Adhesives

DP190 Translucent and Grey

Typical Cured

Properties

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

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

Physical

Footnotes:

3.

Tack-free time determined per 3M

test method C-3173. Involves

dispensing 0.5 gram amount of

adhesive onto substrate and

testing periodically for no

adhesive transfer to metal spatula.

Handling strength determined per

3M test method C-3179. Time to

handling strength taken to be that

required to achieve a 50 psi OLS

strength using aluminum

substrates.

The cure time is defined as that

time required for the adhesive to

achieve a minimum of 80% of the

ultimate strength as measured by

aluminum-aluminum OLS.

Tensile and Elongation. Used

procedure in 3M test method

C-3094/ATSM D 882. Samples

were 2 in. dumbbells with .0125 in.

neck and .030 in. sample

thickness. Separation rate was 2

inches per minute. Samples cured

2 hrs RT plus 2 hrs/ 71°C (160°F).

Weight loss by TGA reported as

that temperature at which 5%

weight loss occurs by TGA in air

at 5°C rise per minute per

ASTM 1131-86.

TCE determined using TMA

Analyzer using a heating rate of

10°C (50°F) per minute. Second

heat values given.

Glass Transition Temperature (Tg)

determined using DSC Analyzer

with a heating rate of 20°C (68°F)

per minute. Second heat

values given.

Thermal conductivity determined

using ASTM C177 and C-matic

Instrument using 2 in. diameter

samples.

Thermal shock resistance run per

3M test method C-3174. Involves

potting a metal washer into a 2 in.

x 0.5 in. thick section and cycling

this test specimen to colder and

colder temperatures.

4.

5.

6.

Thermal

7.

8.

9.

10.

11.

Electrical

- 2 -

3M™ Scotch-Weld™

Epoxy Adhesive DP190

Translucent

3M™ Scotch-Weld™

Epoxy Adhesive DP190

Grey

(ASTM D 150)

6.2

6.5

(ASTM D 150)

0.16

0.09

Dielectric Strength

875 volts/mil

830 volts/mil

Volume Resistivity

(ASTM D 257)

3M™ Scotch-Weld™

Epoxy Adhesive DP190

Translucent

3M™ Scotch-Weld™

Epoxy Adhesive DP190

Grey

Weight Loss byThermal Gravimetric

1% @ 199°C (390°F)

5% @ 312°C (594°F)

1% @ 247°C (477°F)

5% @ 337°C (639°F)

Thermal Coefficient of Expansion (TCE)

Below Tg

Above Tg

86 (5-20°C

[41-68°F] range)

166 (75-140°C

[167-284°F] range)

62 (5-25°C

[41-68°F] range)

177 (65-140°C

[167-284°F] range)

GlassTransitionTemperature

(Tg) byDCS9

Onset

Mid-Point

10°C (50°F)

27°C (80°F)

7°C (45°F)

20°C (68°F)

Thermal Conductivity10

(@ 110°F on .250 in. samples) BTU -

ft./ft.2 - hr. - °F)

Cal./sec. - cm - °C)

Watt/m -°C

.079

.136

.220

.381

Thermal Shock Resistance11 Potted

WasherOlyphant Test (3M ITSD

TestMethodC-3174

+100°C [air] to -50°C [liquid])

Pass 5 cycles

without cracking

Pass 5 cycles

without cracking

3M™ Scotch-Weld™

Epoxy Adhesive DP190

Translucent

3M™ Scotch-Weld™

Epoxy Adhesive DP190

Grey

Colour

Translucent

Gray

Shore D

35

60

80 minutes

90 minutes

~ 4 hrs

~ 6 hrs

6 hrs

8-12 hrs

14 days

7 days

120%

30%

2750 psi

3500 psi