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3M™ Membrane Switch Spacer 7957MP Clear, 7 mil, Custom Sizes Available

3M ID  70000236680    3M Product Number  7957MP     
3M™ Membrane Switch Spacer 7957MP is a 2.0 mil 200MP high-performance acrylic adhesive double coated on each side of 3.0 mil polyester film carrier with double liner of 4.2 mil 58 lb moisture resistant lay-flat polycoated kraft
  • 7 mil Double Linered Membrane Switch Spacer with 200MP adhesive. 58 lb lay-flat polycoated kraft paper liners on each side. Both liners are printed.
  • Ideal for circuit separation in switches until actuation. Easy to die-cut and process. Use for steel rule die-cutting.
  • Excellent moisture and solvent resistance. High temperature resistance. High shear strength accomodates the stresses of repeated actuation. UV resistant. Easy to apply. Not messy. Easily die-cutable. Use for selective die-cutting.
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Overview

High shear strength withstand repeat stresses of switch actuation. Designed to separate switch circuitry until actuation. Same as 3M Membrane Switch Spacer 7945MP with 3.0 mil carrier.

Attributes

 Adhesion to Foam‎‎ 3
 Adhesion to HSE‎‎ 9
 Adhesion to LSE‎‎ 1
 Adhesion to Metal‎‎ 10
 Adhesive Peel Initial‎‎ 5
 Adhesive Peel Ultimate‎‎ 10
 Adhesive Tack Level‎‎ Medium
 Adhesive Type‎‎ Acrylic
 Back-Side Adhesive Thickness‎‎ 2 mil
 Back-Side Adhesive Type‎‎ 3M™ High Performance Acrylic Adhesive 200MP
 Brand‎‎ 3M
 Carrier Color‎‎ Clear
 Carrier Material‎‎ Polyester Film (PET)
 Carrier Thickness‎‎ 3 mil
 Chemical Resistance‎‎ 9
 Color‎‎ Clear
 Face-Side Adhesive Thickness‎‎ 2 mil
 Face-Side Adhesive Type‎‎ 3M™ High Performance Acrylic Adhesive 200MP
 Humidity Resistance‎‎ High
 Industries‎‎ Converter Solutions,‎ Automotive,‎ Signage,‎ Point of Purchase,‎ Print,‎ Transportation,‎ Specialty Vehicle,‎ Metalworking,‎ Medical,‎ General Industrial,‎ Military & Government,‎ Appliance,‎ MRO,‎ Electronics,‎ Aerospace,‎ Woodworking
 Master Size Length‎‎ 360 Linear Yard
 Master Size Width‎‎ 48 Inch
 Meets Specifications‎‎ UL 969,‎ MIL-DTL-19834C,‎ UL 746C
 Moisture Resistance‎‎ High
 Plasticizer Resistance‎‎ Low
 Primary Liner‎‎ 58# Polycoated Kraft Paper (PCK)
 Primary Liner Color‎‎ Tan
 Product Form‎‎ Sheet
 Secondary Liner‎‎ 58# Polycoated Kraft Paper (PCK)
 Secondary Liner Color‎‎ Tan
 Shear Strength at 72 Degrees F (22 Degrees C)‎‎ High
 Shelf Life in Months (from date of manufacture)‎‎ 18
 Size‎‎ Custom
 Temp Resistance-- Lower (deg F)‎‎ -40 Degree Fahrenheit
 Temp Resistance -- Upper (deg F)‎‎ 400 Degree Fahrenheit
 Total Thickness‎‎ 15.4 mil
 UV Resistance‎‎ High

Documents

Technical Paper