Silicone Keypad for Truck Audio

Backlight (laser etching) Keypad.

1). General purpose silicone in translucent, milky for molding the rubber blank.

2). Spray painting in multi-color layers(basic, white/black).

3). Laser etching for all graphics for a blacklight effect.

4). Light box inspection in a drak room for the graphics backlight and the keypad light leak.

5). Surface coating for protection.

a). Silicone matte (SM) coating for a comfortable touch feeling.

b). PU matte coating for a good worn/abrasion proof(RCA Tester).

Above 400 continual cycles with 175grams load guaranteed by RCA tester.

c). Adds UV-proof material on the above a) and b) to stop the white graphic becoming yellowish for the outdoor environment(Marine,outdoor, military...).

Highlights:

The following silicones are not suitable for a backlight keypad.

a). Fluorosilicone(FSR), due to the standard FSR color is light yellow or white( There is a transparent FSR on market, but the price is sky).

b). Flame retardant silicone, especially for UL94-V0 grade silicone, due to the color is off-white.

To improve the key cycle life, a high tear silicone can be added into the molding.

Press here and write down your interest, pls.