Repair 7

Equipment to Spray Urethane

Solvent-based clear coats are used in the automotive industry to add gloss and protection to a colored paint. The most resilient clear coat products are made from urethane because of the hard, durable surface that it provides. Urethane application requires the correct equipment.

Mixing

Urethane products are used alongside a hardener and a thinner to promote fast drying times and an effective flow of material. Waxed measuring cups can be used for mixing small quantities but those completing repaints will require aluminium mixing pots, measuring sticks and ultra-fine grade filters to remove traces or hair, grit or other debris.

Spraying Equipment

Modern urethane products are applied using HVLP spray guns. Clear coats are atomized during the spraying process and this procedure is optimised by using the correct fluid tip set-up inside the gun. A compressor should be used and an air pressure regulator is required to help control material output.

Drying and Cleaning

Ideally, urethane products should be applied in a professional paint booth where low-bake facilities are provided. If this is not possible, ultra violet light stands are available to help promote faster drying times in ambient temperatures. Cellulose thinners should be used in HVLP spray guns to help clean and remove all traces of urethane products.