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PU Coated Silicone Keypad, also called PU Coated Rubber Keypad & Keyboard, which is aim to increase the abrasive resistance of silk screen printing & laser etched legends (symbols), color coating on silicone rubber keypad & buttons surface.
Spraying PU coating is a common method, which can improve the service life of silicone rubber keypads and at the same offer good handle touch feeling.
Except PU coating, other rubber keypad's legends & symbols cover like matte smooth coating, epoxy coating, plastic key & buttons etc.
Notes: Silicone Rubber Keypads with PU coating, which have two types: Matte surface and Glossy & Light surface
PU coated Rubber Keypad main process:
1. Clean silicone keypad in the washing machine
2. Dry using drying machinery
3. Flame treating on the keypad surface
4. Spraying PU on the surface of the silicone buttons
5. Dry in the Infrared furnace
The process seems to be easy, but the fraction defective of PU coating keypads is high because of the character of PU ink.
Defective Rubber Keypads: impurities and stains on button surface, PU falling off, etc. 
Except PU coating, other rubber keypad's legends & symbols cover like matte smooth coating, epoxy coating, plastic or metal key & buttons cap etc. 
PU Coated Silicone Keypad, also called PU Coated Rubber Keypad & Keyboard, which is aim to increase the abrasive resistance of silk screen printing & laser etched legends (symbols), color coating on silicone rubber keypad & buttons surface.
Spraying PU coating is a common method, which can improve the service life of silicone rubber keypads and at the same offer good handle touch feeling.
Except PU coating, other rubber keypad's legends & symbols cover like matte smooth coating, epoxy coating, plastic key & buttons etc.
Notes: Silicone Rubber Keypads with PU coating, which have two types: Matte surface and Glossy & Light surface
PU coated Rubber Keypad main process:
1. Clean silicone keypad in the washing machine
2. Dry using drying machinery
3. Flame treating on the keypad surface
4. Spraying PU on the surface of the silicone buttons
5. Dry in the Infrared furnace
The process seems to be easy, but the fraction defective of PU coating keypads is high because of the character of PU ink.
Defective Rubber Keypads: impurities and stains on button surface, PU falling off, etc.
Except PU coating, other rubber keypad's legends & symbols cover like matte smooth coating, epoxy coating, plastic or metal key & buttons cap etc.
