... powder coating, plating, anodizing etc 2. High temperature and reusable Rectangular silicone capsIdeal for powder coating, painting, plating, anodizing, e-coating ... or electronic contacts Material: silicone rubber, shore A 55,Good sealing capabilities, excellent chemical resistance and reusable,maximum temperature 500°F ... detail see our website: www.nbdinghong.co masking rectangular silicone caps