3M™ Membrane Switch Product with Adhesive 200MP 7953MP

Typical Performance Characteristics (continued)

Property

Values

Method

Substrate

Backing

Test Condition

Notes

Static Shear

10,000+ min

ASTM D3654

Stainless Steel

PET Film

1000 g @ Room

Temperature

0.5 in²

Static Shear

10,000+ min

ASTM D3654

Stainless Steel

PET Film

500 g @ 70°C

(158°F)

0.5 in²

Electrical and Thermal Properties

Property

Values

Method

Test Condition

Notes

Insulation Resistance

1.7 × 10^13 Ω

Mil-I-46058C

100VDC, 60 sec

Dissipation Factor

0.017

ASTM D150

Dielectric Strength

1400 V/mil

ASTM D149

Short time method (air)

Volume Resistivity

5.8 × 10^14 Ω-cm

ASTM D257

Room Temperature

Surface Resistivity

>5.6 × 10^16 Ω

ASTM D257

Room Temperature

Coe cient of Thermal

Expansion

6.7 × 10^-4 m/m/°C

ASTM D696

First Heat(125 - 175°C)

Environmental Resistance

Humidity Resistance – High humidity has a minimal e ect on adhesive performance. Bond strength shows no signi cant reduction after exposure for 7 days at 90⁰F

(32⁰C) and 90% relative humidity.

UV Resistance – When properly applied, nameplates and decorative trim parts are not adversely a ected by outdoor exposure.

Water Resistance – Immersion in water has no appreciable e ect on the bond strength. After 100 hours at room temperature, the high bond strength is maintained.

Temperature Cycling Resistance – High bond strength is maintained after cycling four times through:

4 hours at 158⁰F (70⁰C)

4 hours at -20⁰F (-29⁰C)

4 hours at 73⁰F (22⁰C)

Chemical Resistance – When properly applied, nameplate and decorative trim parts will hold securely after exposure to numerous chemicals including oil, mild acids

and alkalis.

Bond Build-up: The bond strength of 3M™ High Performance Acrylic Adhesive increases as a function of time and temperature as the adhesive further wets the

surface and reaches maximum bond strength after 72 hours at room temperature.

Temperature/Heat Resistance: 3M™ High Performance Acrylic Adhesive on polyester carriers is usable for short periods (minutes, hours) at temperatures up to300 ⁰F

(149⁰C) and for intermittent longer periods (days, weeks) up to 250⁰F (121⁰C).

Lower Temperature Service Limit: -40⁰F (-40⁰C).