3M™ Membrane Switch Spacer 7956WDL, White, 610 mm x 914 mm, 0.15 mm
- 3M ID 7000049163
Details
Highlights
- 152µm Double Linered Membrane Switch Spacer with 200MP adhesiveon both sides of an opaque polyester film. #58 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. Used for graphic attachment
- Provides outstanding adhesion to metal and high surface energy plastics
- 3M performance standard, moisture stability and economical edge burr during hard tool die cutting
- Metallized vapor coat and white color provide strong opacity for facilitating backlighting and eliminating floodcoats
- Double Lay-flat 58 lb. polycoated kraft (PCK) liners add dimensional stability for various die-cutting operations
3M™ Membrane Switch Spacer 7956WDL is a 152µm 3M™ High Performance Acrylic Adhesive 200MP tape with a 50µm Silver Polyester Film (PET) carrier on 107µm Tan #58 Polycoated Kraft Paper (PCK) liners.
Long-life formulations for die-cut laminations, circuit layer assembly, switch spacers, metal dome placement, and lead protection
Featuring 3M™ High Performance Acrylic Adhesive 200MP, the 3M™ Membrane Switch Spacer 7956WDL is excellent for graphic applications. Its white 2.0 mil polyester film carrier adds structural strength, and a metallized vapor coating creates outstanding opacity for vivid graphic displays. The adhesive, applied at 2.0 mils on each side of the film, is ideal for the stresses of switch actuation over long periods. It 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.
Twin 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, increases dimensional stability and holds 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
- Graphic and non-graphic applications
- Switch mounting
- Circuit layer assembly
- Metal dome placement
- Lead protection
- Die-cut laminations
Learn More about Membrane Switch Adhesives (PDF, 211.7 Kb)
Resilient and Ready
3M™ Membrane Switch Spacer 7956WDL is constructed with 2.0 mil high performance acrylic adhesive that is coated on each side of a 2.0 mil white metallized vapor-coated polyester film carrier. This membrane switch spacer is double-linered with twin 4.2 mil, 58 lb. moisture-resistant, lay-flat, PCK paper liners. Designed to separate switch circuitry until actuation, 3M™ Membrane Switch Spacer 7956WDL provides excellent temperature resistance (up to 400°F/204°C short-term heat resistance), solvents and UV resistance.
Application-specific configurations for die-cut laminations, circuit layer assembly, and switch spacers
3M™ High Performance Acrylic Adhesive 200MP is 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.
Find More 3M Industrial Adhesives and Tapes (PDF, 12.28 Mb)
Bringing Better Ideas to the Surface through Science
The 3M Industrial Adhesives and Tapes Division applies the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, these technologies help customers like you deliver competitive products to the market faster and more efficiently.
Learn More about 3M Labeling and Graphics Solutions (PDF, 26.89 Mb)
Typical Properties
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