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Metal adhesives

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3M 7956MP Hi-Performance Acrylic 200MP
Categories: Polymer; Adhesive

Material Notes: This adhesive meets the requirements of most long-term applications. It offers temperature resistance to 400°F (204°C). Peel adhesion values are excellent on most membrane switch substrate materials. It features exceptional shear strength and adhesion to high surface energy (HSE) plastics and metal surfaces.

Designed to meet the performance requirements of most membrane keyboards. Outstanding resistance to temperature extremes, chemicals and humidity. Also resists oozing, lifting and separation of switch layers. All products feature 2 mils of 200MP on each side

Information provided by 3M

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Physical PropertiesOriginal ValueComments
Thickness 2.00 milAdhesive
 2.00 milPolyester
 2.00 milAdhesive
 
Mechanical PropertiesOriginal ValueComments
Shear Strength 78.0 psiCohesion Dynamic, PET/Polycarbonate; ASTM D1002
 103 psiCohesion Dynamic, PET/Stainless Steel; ASTM D1002
Peel Strength 2.00 pli90° Peel, PET/Aluminum, Initial (20 mins); ASTM D3330
 2.75 pli90° Peel, PET/PET, Initial (20 mins); ASTM D3330
 2.9375 pli90° Peel, PET/Polycarbonate, Initial (20 mins); ASTM D3330
 3.125 pli90° Peel, PET/Stainless Steel, Initial (20 mins); ASTM D3330
 4.1875 pli90° Peel, PET/Polycarbonate, 72 hrs at 70°C; ASTM D3330
 4.5625 pli90° Peel, PET/PET, 72 hrs at RT; ASTM D3330
 4.6875 pli90° Peel, PET/Aluminum, 72 hrs at RT; ASTM D3330
 4.75 pli90° Peel, PET/Polycarbonate, 72 hrs at RT; ASTM D3330
 7.0625 pli90° Peel, PET/Stainless Steel, 72 hrs at RT; ASTM D3330
 7.375 pli90° Peel, PET/PET, 72 hrs at 70°C; ASTM D3330
 9.75 pli90° Peel, PET/Stainless Steel, 72 hrs at 70°C; ASTM D3330
 9.8125 pli90° Peel, PET/Aluminum, 72 hrs at 70°C0; ASTM D3330
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 8.90e+14 ohm-cmASTM D257
Surface Resistance >= 5.60e+16 ohmASTM D257
Insulation Resistance 1.10e+13 ohm100VDC, 60 sec; Mil-I-46058C
Dielectric Constant 3.4ASTM D150
Dielectric Strength 1700 kV/inASTM D149
Dissipation Factor 0.015ASTM D150
 
Thermal PropertiesOriginal ValueComments
CTE, linear 5.10 µm/m-°C
@Temperature 27.0 - 175 °C
ASTM D696
 
Descriptive Properties
Adhesive Type200MP
Liner58# PCK 4.2

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PMM33309 / 168056

Metal adhesives

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