Premium 7 mil double-coated membrane switch spacer with 3M High Performance Acrylic Adhesive 200MP on polyester film carrier. Features excellent shear strength, temperature resistance to 400°F, and lay-flat polycoated kraft liners for precise die-cutting and industrial switch applications.
The 3M™ Membrane Switch Spacer 7956MP is a premium double-coated adhesive spacer engineered for demanding membrane switch applications. Featuring 3M™ High Performance Acrylic Adhesive 200MP applied at 2.0 mils on each side of a 2.0 mil polyester film carrier, this product delivers exceptional shear strength and withstands repeated stress of switch actuation over millions of cycles. The transparent design with total tape thickness of 7 mil provides the ideal separation layer for switch circuitry until actuation, ensuring precise performance in industrial applications.
This membrane switch spacer is constructed with double 4.2 mil, 58 lb. polycoated kraft paper liners that resist humidity, curling, tunneling and buckling. The lay-flat liner design adds dimensional stability for various die-cutting operations and enables improved rotary die-cutting at high speeds. The adhesive formulation resists oozing at edges and die-cuts, resulting in faster part processing, cleaner edges, and minimal waste. With excellent temperature resistance up to 400°F (204°C) short-term and outstanding performance after exposure to humidity and hot/cold cycles, this spacer is ideal for applications ranging from farm tractors and medical test systems to microwave ovens and fish finders.
The 3M High Performance Acrylic Adhesive 200MP is considered an industry standard for graphic attachment and general industrial joining applications, featuring outstanding adhesion to metal, polycarbonate, ABS and polyester. This double-sided spacer comes in sheet format and is designed specifically for membrane switch construction, circuit layer assembly, metal dome placement, lead protection, and die-cut laminations. With an 18-month shelf life and indoor/outdoor capability, the 7956MP represents the ideal choice for manufacturers requiring reliable, high-performance membrane switch components.
Key Features
- 6 mil double-coated spacer withstands repeated stress of switch actuation over millions of cycles
- 2 mil acrylic adhesive on each side delivers excellent shear strength and resists slippage and edge lifting
- 2 mil polyester film carrier provides structural strength and dimensional stability
- Double 4.2 mil polycoated kraft paper liners resist humidity, curling, tunneling and buckling
- Adhesive resists oozing at edges and die-cuts for faster part processing and minimal waste
- Lay-flat liner design enables improved rotary die-cutting at high speeds
- Temperature resistance up to 400°F (204°C) short-term with excellent hot/cold cycle performance
- Outstanding adhesion to metal, polycarbonate, ABS and polyester surfaces
- Industry-standard 3M High Performance Acrylic Adhesive 200MP formulation
- 18-month shelf life with indoor/outdoor capability
Technical Specifications
| Specification |
Value |
| Product Number | 7956MP |
| 3M ID | 7100263504 |
| Adhesive Type | High Performance Acrylic Adhesive 200MP (Double-sided) |
| Face Side Adhesive Thickness | 2 mil (0.05 mm) |
| Back Side Adhesive Thickness | 2 mil (0.05 mm) |
| Total Tape Thickness without Liner | 7 mil (0.178 mm) |
| Backing Carrier Material | Polyester Film |
| Backing Carrier Thickness | 2 mil (0.05 mm) |
| Primary Liner | 58# Polycoated Kraft Paper |
| Primary Liner Thickness | 4.2 mil (0.11 mm) |
| Primary Liner Color | Tan |
| Secondary Liner | 58# Polycoated Kraft Paper |
| Secondary Liner Thickness | 4.2 mil (0.11 mm) |
| Secondary Liner Color | Tan |
| Product Color | Transparent |
| Number of Adhesive Sides | Double-sided |
| Maximum Operating Temperature | 400°F (204°C) short-term |
| Minimum Operating Temperature | -40°F (-40°C) |
| Temperature Range | -40°C to 204°C (-40°F to 400°F) |
| Indoor/Outdoor Rating | Indoor/Outdoor |
| Shelf Life | 18 Months |
| Format | Sheet |
| Smallest Saleable Unit | Sheet |
| Brand | 3M™ |
| Industries | Metalworking, Signage, Specialty Vehicles, Woodworking |
| Recommended Applications | Membrane switch spacers, Switch mounting, Circuit layer assembly, Metal dome placement, Lead protection, Die-cut laminations |
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