Advanced Module Overview Students will gain knowledge about types of glass, glass removal and replacement and the safe disposal of materials. To handle, use and dispose of materials safely. To recommend procedures and select appropriate products for use in autobody repair. To understand and practise the safe handling of hazardous materials. Learning Objectives Notes 18.1 To identify types of glass and retaining systems used in the automobile industry.
Tempered glass is heated and then cooled rapidly.
This results in glass that has great strength and that breaks into small particles when broken. Laminated glass is made of two layers of glass that have a polyurethane layer between them. This is usually used for windshields. Impact results in cracks but the polyurethane layer holds the pieces of glass together so that occupants of the vehicle are not subjected to flying glass particles. Retaining systems vary with make, model and year of vehicles.