Product Description
Membrane Switch Spacer 7966WDL
- 2 mil white polyester carrier provides strength and stability
- 9 mil double-coated spacer is ideal for withstanding repeated stress of switch actuation
- Acrylic adhesive delivers excellent shear strength, resists slippage and edge lifting
- Adhesive resists oozing at edges and die-cuts for faster part processing
- Designed with 2 mil adhesive on face side and 5 mil adhesive on the back side
- Lay-flat polycoated kraft (PCK) liners add dimensional stability for high-speed rotary die-cutting
- Metallized vapor coat on white polyester carrier creates outstanding opacity for graphics
A Top Performer Before, During and After Application
Featuring 3M™ High Performance Acrylic Adhesive 200MP, the 3M™ Membrane Switch Spacer 7966WDL 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 the face side and 5.0 mil on the back side, 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
Resilient and Ready
3M™ Membrane Switch Spacer 7966WDL is constructed with 2 mil adhesive on the face side and a 5 mil adhesive on the back 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, the 3M™ Membrane Switch Spacer 7966WDL provides excellent temperature resistance (up to 400⁰F/204⁰C short-term heat resistance), solvents and UV resistance.
About The High Performance Acrylic Adhesive 200MP
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.
Bringing Better Ideas to the Surface through Science
In the 3M Industrial Adhesives and Tapes Division, 3M apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, the technologies help customers like you deliver competitive products to the market faster and more efficiently.
For more information about Membrane Switch Spacer 7966WDL, visit the official 3M website.
About JAM Industrial Supply of Ohio
Locally owned and operated in Canton, OH, JAM Industrial Supply, LLC has been a 3M Premier distributor and industrial supplier for over 20 years. With our vast network of vendors, we are able to supply the industry’s best products, information, delivery and prices to our customers.
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Additional information
| Unit of Measure | |
|---|---|
| Product Id | |
| Part Number | |
| UPC | |
| Per Case | |
| Weight | 32 lbs |
| Make to Order | |
| Brand | |
| Back Side Adhesive Thickness | 0.13 mm |
| Backing (Carrier) Thickness | 0.05 mm |
| Face Side Adhesive Thickness | 0.05 mm |
| Length | |
| Width | |
| Primary Liner Thickness | 0.11 mm |
| Secondary Liner Thickness | 0.11 mm |
| pa_total-tape-thickness-without-liner | |
| Adhesive Type | |
| Back Side Adhesive Type | High Performance Acrylic Adhesive 200MP |
| Backing (Carrier) Material | Polyester Film |
| Face Side Adhesive Type | High Performance Acrylic Adhesive 200MP |
| Industries | |
| pa_maximum-operating-temperature-fahrenheit | |
| pa_minimum-operating-temperature-fahrenheit | |
| Number of Adhesive Sides | Double-sided |
| Primary Liner | |
| Primary Liner Color | |
| Product Color | White |
| Secondary Liner | |
| Secondary Liner Color | Tan |
| Shelf Life | |
| Units Per Case | |
| Size | |
| Dimensions | 36.6 × 25.2 × 2.3 in |





