Supply of 0.05mm the OCA optical adhesive, the OCA optical transparent plastic is a kind of optical acrylic plastic made without the substrate, and then up and down the bottom, and then laminating a layer away from the film, is a double-sided substrate material fit tape. Optical adhesive has excellent light transmittance, high adhesion, temperature resistance, moisture resistance, long durability and sealing performance good. OCA optical plastic products are widely used in the resistive touch screen, capacitive touch screen PET, ITO, the PC, such as transparent film and device bonding can be used for the projection screen assembly, display assembly, lens assembly, and other related electro-optical bonding.