According to the requirement of different discoloration, we put in a certain material which would change the light,to make the light box whether the external light source or the interior illuminant would show two different colors respectively, we call it colored sheet. There are black and white sheet, blue and white sheet, green and white sheet, etc. Usually there is a frosted surface.
Mainly used for interior lighting signs and display cards.
1. When the incident(from out side to inside) is black(or blue, red, etc.), will be white when the light go through(inside light emitted).
2. See the black surface during the day, and in the night, will change into white when light goes through.
3. Usually the front is frosted.
|Rockwell hardness (M)||93|
|Heat distortion temperature (1.8MPA)||98|
|Linear expansion coefficient℃-1||7.0*10-5|
|Tensile strength Mpa||74.7|
|Tensile fracture strain%||6.2|
|Tensile modulus of elasticity Mpa||3010|
|Vicat softening temperature（B50），℃||97|
|solvent craze resistance（4H）||no craze|
|Beamless impact strength KJ/M2||21.9(C)|