3M™ Membrane Switch Spacer 7957MP features 3M™ High Performance Acrylic Adhesive 200MP, formulated for excellent shear strength, on a 3 mil PET film carrier. This adhesive withstands repeated switch actuation and forms neat, clean edges for precise slitting and die-cutting. Double PCK paper liners resist humidity, curling, tunneling and buckling, and add stability for improved sheet processing.
Unit of Measure

Additional Information

N/A The High-Shear Advantage - Less Oozing and Tighter Edges
Featuring 3M™ High Performance Acrylic Adhesive 200MP, our 3M™ Membrane Switch Spacer 7957MP is ideal for the stresses of switch actuation over long periods. The adhesive on this double-sided spacer is formulated for excellent shear strength - forming a durable bond with plastics and other smooth surfaces with less oozing at the edges. This allows for easier slitting and die-cutting, faster part processing and minimal waste. The adhesive is applied at 2.0 mils to each side of a 3.0 mil polyester film carrier which adds structural strength.
Double 4.2 mil 58 lb. polycoated kraft (PCK) paper lay-flat liners are designed to cover adhesive consistently for full bonding performance after application. Liners resist curling, tunneling and buckling, increase dimensional stability and hold up even under high humidity for efficient storage and processing. Liner design also enables improved rotary die-cutting at high speeds, as well as improved sheet processing.

Recommended Applications
  • Membrane switch spacers
  • Switch mounting
  • Circuit layer assembly
  • Metal dome placement
  • Lead protection
  • Die-cut laminations
Resilient and Ready
3M™ Membrane Switch Spacer 7957MP is constructed with 2.0 mil high performance acrylic adhesive that is coated on each side of a 3.0 mil polyester film carrier. This membrane switch spacer comes double-linered with a 4.2 mil, 58 lb. moisture-resistant, lay-flat, PCK paper. Designed to separate switch circuitry until actuation, our Membrane Switch Spacer 7957MP provides excellent Temperature resistance (up to 400°F/204°C short-term heat resistance), solvents and UV resistance.

About Our High Performance Acrylic Adhesive 200MP
3M™ High Performance Acrylic Adhesive 200MP is considered an industry standard for graphic attachment and general industrial joining applications. It features outstanding adhesion to metal, polycarbonate (PC), ABS and polyester (PET), making it popular across many industries. This adhesive provides some initial repositionability for placement accuracy when bonding to plastics. It also performs well after exposure to humidity and hot/cold cycles, providing confidence that the switch will perform through difficult environmental conditions and millions of actuations.

The Right Choice for a Range of Applications
With low cost, long life, outstanding environmental performance and eye-catching graphics, membrane switches are found in more and more applications. They range from farm tractors and medical test systems to microwave ovens and fish finders. Whatever the need, 3M™ has a membrane switch construction suited for the job.

Bringing Better Ideas to the Surface through Science
In our 3M™ Industrial Adhesives and Tapes Division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.

3M ID (Stock Number)

N/A 7000001569 7010335283 7100000042 7100012577

Legacy (Stock Number)

N/A 70000042120 70000044167 70006492733 70016034707

Sales UPC

N/A 00051125751865 50021200177502

Country of Origin

N/A USA

ECCN Number

N/A EAR99

Product Details

N/A 3M™ Membrane Switch Spacer 7957MP, Clear, 36 in, 7 mil, 100 Sheets Per Case 3M™ Membrane Switch Spacer 7957MP, Clear, 360 yds, 7 mil, 1 Roll Per Case 3M™ Membrane Switch Spacer 7957MP, Clear, 7 mil, Roll, Configurable 3M™ Membrane Switch Spacer 7957MP, Clear, 7 mil, Sheet, Configurable

EU REACH

N/A This product, including any article that the product is composed of, does not contain at greater than 0.1% by weight a Substance of Very High Concern (SVHC) substance identified according to Article 59 of REACH. This declaration reflects the substances on the candidate SVHC list, effective July 2019.

EU RoHS

N/A This product does not exceed the maximum concentration values (MCVs) for phthalates set under EU Directive 2011/65/EU (RoHS recast/RoHS 2), as amended by EU 2015/863, which applies to finished EEE after July 22, 2019 for Category 1-7, 10-11 products and after July 22, 2021 for Category 8 and 9 products. This means that each of the homogeneous materials within this product does not exceed the MCV of 0.1% (by weight) for each of the following phthalates: DEHP, BBP, DBP, and DIBP.

Features

N/A
  • 7 mil double-coated spacer is ideal for withstanding repeated stress of switch actuation
  • 2 mil acrylic adhesive on each side delivers excellent shear strength, resists slippage and edge lifting
  • 3 mil polyester film carrier provides strength and stability
  • Adhesive resists oozing at edges and die-cuts for faster part processing
  • Layflat 58# polycoated kraft (PCK) liners add dimensional stability for various die-cutting operations