3M 3635 - 20B and 22B Blockout is a cast, matte, 100% opaque, white and black blockout self adhesive film. 3635-20b: Uniformly white on face side with a matte surface. 3635-22b: Uniformly black on face side with a matte surface.
3M 3635 - 100 Light Enhancement is a unique, matt, white, highly diffused reflective polymeric film with a white, permanent adhesive. Specifically made to maximise light in internally illuminated signs.
3M 3635 - 210/222 Dual Colour is a perforated cast film, the dual colour perforation pattersn lets background colour/image display when backlit. 3635-210 is a white, perforated, matte, permanent adhesive. 3635-222 is a black, perforated, matte, permanent adhesive (clear).
3M 3635 - 30 or 70 Diffuser is a cast, matt, white transluscent film with clear permanent adhesive.Suitable for internal-illuminated signs with fluorescent lights. White colour, uniform in both reflective and transmitted light.