Material Specifications
Polyester
Polyester Products
- The material of choice for membrane keypad graphic overlays due to its superior flex life and chemical resistance
- Most common thicknesses are .006”, .007”, .008” and .010”
- Certain films are suitable for outdoor use with UV inhibitors for resistance to the UV effects of sunlight.
- Available with built-in Microban antimicrobial protection that inhibits growth of bacterial, mold & mildew.
- Also available in brushed finish to simulate the look of brushed metal
- Special “soft touch” surface finish available to mimic the feel of silicone rubber
- Autotex V and Autotex F (textured)
- Autoflex EBG/EBA (gloss and antiglare surface finishes)
- Autotex XE (with UV inhibitors for outdoor use)
- Autotex Steel (brushed finish)
- Autotex AM (with antimicrobial protection)
- Autotex Softouch (imitates the feel of silicone rubber)
- Marnot Advanced Hardcoated Clear Polyester
- Marnot XL Hardcoat 55%. 75% & 90% Gloss Unit Matte Polyester
Polycarbonate
Polycarbonate Products
- Ideal for standalone display windows, overlays without keypads as well as bezel overlays for rubber keypads
- Available in textured, antiglare and glossy finishes
- Certain films are suitable for outdoor use with UV inhibitors for resistance to the UV effects of sunlight.
- Available in an anti-fog coating
- Available in thickness ranges from .005” to .030”
- Lexan 8B35 (textured)
- Lexan 8B35F (textured)
- Lexan 8B35V (textured)
- Lexan HP (hardcoated antiglare and glossy)
- Lexan HP12W (with UV inhibitors for outdoor use)
- Marnot XL Hardcoat Clear Polycarbonate
- Marnot XL Hardcoat Matte Polycarbonate (20, 35, 55, 75 and 90 Gloss Unit matte levels)
Adhesives
When it comes to membrane switch adhesives, 3M has always been and continues to be the top-of-the-line material manufacturer of choice. 3M adhesives can withstand the stress of keypad and membrane switch actuations and hold up in the harshest of environments. 3M adhesives are specially formulated to provide a water-tight seal and are able to resist moisture, extreme temperatures, UV radiation and solvents. The adhesives offer unmatched and exceptional cohesive strength.
- Suitable for high surface energy materials such as aluminum, steel, polycarbonate, ABS, nylon, etc.
- Widely used in the membrane switch applications
- Available in thicknesses of .002” and .005”. For adhesion to textured surfaces, the .005” thickness is recommended.
- Service temperature range of -31°F to +300°F for prolonged periods and +400°F for shorter periods.
- Excellent environmental, temperature, chemical and humidity resistance.
- Ideal for adhesion to low surface energy plastics such as powder coated paint and polypropylene
- Available in thicknesses of .002”, .0035”, and .005”. For adhesion to textured surfaces, the .005” thickness is recommended.
- Service temperature range of -40°F to +200°F for prolonged periods and +300°F for shorter periods.
- Excellent environmental, temperature, chemical and humidity resistance.