Plastic Adhesion Promoter from Spectral Paints is a specialized aerosol product designed to enhance paint adhesion on plastic surfaces like bumpers, mirrors, and trim. This 12 oz (340g) can contains a potent formula that should be handled with extreme caution as it is very flammable and an irritant. Before use, thoroughly clean the repair area and sand as needed per the detailed 4-page instruction manual. Apply in well-ventilated areas at temperatures above 65°F (18°C) and humidity below 50%. For best results, avoid direct sunlight, high humidity, or surfaces with silicone waxes or tire dressings. Proper preparation is crucial for optimal adhesion and a professional-looking finish.