Premium 3.5 mil double-coated membrane switch spacer with High Performance Acrylic Adhesive 200MP for reliable switch actuation and circuit separation in industrial applications.
The 3M™ Membrane Switch Spacer 7953MP is a premium double-coated adhesive spacer specifically engineered for membrane switch applications and circuit layer assembly. This 3.5 mil thick spacer features 3M's High Performance Acrylic Adhesive 200MP, which delivers exceptional shear strength and resists slippage and edge lifting during repeated switch actuation cycles. The product is constructed with 1.5 mil acrylic adhesive on each side of a 0.5 mil polyester film carrier, providing optimal structural integrity and performance in demanding industrial applications.
Designed for separation of switch circuitry until actuation, this membrane switch spacer excels in withstanding the repeated stress and environmental challenges of switch operation. The double-linered design features 58 lb. polycoated kraft (PCK) paper liners that resist humidity, curling, tunneling, and buckling, ensuring dimensional stability for various die-cutting operations and high-speed rotary processing. The adhesive formulation provides excellent temperature resistance from -40°C to 204°C (-40°F to 400°F), along with outstanding resistance to solvents and UV exposure, making it suitable for both indoor and outdoor applications.
The 7953MP spacer is ideal for a wide range of industrial applications including membrane switches, switch mounting, metal dome placement, lead protection, and die-cut laminations. Its lay-flat liner design enables improved rotary die-cutting at high speeds and minimizes waste through cleaner slitting and die-cutting operations. This product is formulated for excellent adhesion to metals, polycarbonate, ABS, and polyester surfaces, with some initial repositionability for precise placement accuracy. With an 18-month shelf life and designed for industrial/occupational use only, this spacer represents the industry standard for reliable membrane switch construction.
Key Features
- 3.5 mil double-coated spacer withstands repeated stress of switch actuation
- 1.5 mil acrylic adhesive delivers excellent shear strength and resists slippage
- 0.5 mil polyester film carrier provides structural strength and stability
- Double 4.2 mil polycoated kraft paper liners resist humidity and curling
- Temperature resistant from -40°C to 204°C with UV and solvent resistance
- Lay-flat liner design enables high-speed rotary die-cutting and sheet processing
- Excellent adhesion to metals, polycarbonate, ABS, and polyester surfaces
- Minimal edge oozing for faster part processing and cleaner die-cuts
- 18-month shelf life with improved dimensional stability
- Suitable for membrane switches, metal dome placement, and lead protection
Technical Specifications
| Specification |
Value |
| Product Number | 7953MP |
| Total Tape Thickness without Liner | 3.5 mil (0.09 mm) |
| Adhesive Type | High Performance Acrylic Adhesive 200MP |
| Face Side Adhesive Thickness | 1.5 mil (0.04 mm) |
| Back Side Adhesive Thickness | 1.5 mil (0.04 mm) |
| Backing (Carrier) Material | Polyester Film |
| Backing (Carrier) Thickness | 0.5 mil (0.01 mm) |
| Product Color | Transparent |
| Primary Liner Material | 58# Polycoated Kraft Paper |
| Primary Liner Thickness | 4.2 mil (0.11 mm) |
| Primary Liner Color | Tan |
| Secondary Liner Material | 58# Polycoated Kraft Paper |
| Secondary Liner Thickness | 4.2 mil (0.11 mm) |
| Secondary Liner Color | Tan |
| Maximum Operating Temperature | 204°C (400°F) |
| Minimum Operating Temperature | -40°C (-40°F) |
| Indoor/Outdoor Rating | Indoor/Outdoor |
| Shelf Life | 18 Months |
| Smallest Saleable Unit | Roll |
| Brand | 3M™ |
Order 3M Membrane Switch Spacer 7953MP Clear 3.5 mil at wholesale prices for companies and factories in Iraq and Middle East, get the best deals on bulk purchases, contact us today.
