Primers

Primers are the most common undercoats used when refinishing car bodies. They’re used to build up and level feathered areas or rough surfaces and to provide a smooth surface for paint. Primers have several unique characteristics:

• Adhesion – they provide a strong bond between the sheet metal or old paint and the new paint
• Rust resistance – they resist the formation of rust where they adhere to the sheet metal
• ‘Build’ – they’re able to fill sanding and grinding marks in old paint, sheet metal and fillers
• Sanding ease – they can be sanded smooth and levelled quickly and easily
• ‘Hold out’ – they prevent the paint from soaking in, which results in a dull finish
• Drying speed – a good high-build primer should be ready to sand in as little as 30 minutes