Description
3M 7957MP Membrane Switch Spacer – double-coated sheets
3M 7957 MP is a dry acrylic adhesive 200MP formed as sheets with dimensions of 61cm (width)/ 91.4cm (height). Bond to high surface energy materials and provides long-term durability for bonded metals, plastics, polyester, glass, polycarbonate, ABS and so on. 3M double-sided adhesive sheets have no expansion during temperature changes. 3M Membrane Spacer 7957MP is designed for manufacturing of flexible tactile keyboards and electronic displays. It is because 3M 7956MP has a fixed adhesive thickness.
Double-sided sheets 7957 MP have a polyester film carrier that is excellent dielectric. It is moisture resistant so no folds are guaranteed. They are perfect for bonding electronic displays and mobile phone displays.
Using 3M double-sided sheets (membrane switch spacers), you can quickly make each product become self-adhesive. It is very convenient for customers. The thickness of bonding across the whole width of the materials is guaranteed. Thus the products do not change their appearance and their bond strength.
Bonds a wide range of materials:
- plastics
- glass
- metal
- wood
- polyester
- ABS
- polycarbonate
- others
Advantages:
- Pressure resistance
- High temperature resistance
- UV resistance
- Does not fold from water
- Clear adhesive with no impurities
- Solvent resistance
- Used as a dielectric
Bonding technique:
Before bonding use isopropyl alcohol mixture to clean the surfaces. After that let them to dry out. Bond at temperatures in range of 21°C to 38°C to have good adhesion. It is not recommended to bond at temperatures under 10°C. When you work with chemicals, take precautions.
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