Optical Coating Technologies Limited offer a range of coatings that enhance the appearance, durability and hence saleability of thermoplastic products, whether they be formed sheet, mouldings or extrusions. The range centres on hard, anti-fog and abrasion resistant anti-fog coatings. The applications for high performance engineering plastics no longer need be restricted by: Surface abrasion Deterioration of appearance Deterioration of light transmission In the case of uncoated polycarbonate, the process of degradation is swift, even when extreme care is taken in cleaning.