This is the Montana Aluminium Primer Spray Paint , this product is a godsend, designed specifically by the guys at Montana, what you have is a quick drying primer paint for the ultimate pre-treatment of a wide variety of metal surfaces that need to be protected from rust and the elements. The primer can be used on many metals like iron, steel or mineral surfaces. Montana Metal Primer can be used on Montana sprays with a synthetic, acrylic, or nitro-combination base. Always test before use. Drying time varies depending on temperature and humidity and might take a few hours. We recommend that you watch the video on this page, watching the video will give you a greater understanding on how to use the polystyrene primer product how to ensure you manage to achieve the best results HOW TO USE : Firstly you need to apply the Aluminium primer in multiple thin sweeping layers, it is important that when spraying you apply a the next coat before the previous coat is fully dry, but with 1 to 2 minutes between each pass. Any additional coats may require a drying time of 24 hours or more depending on the substrate material. Always test spray on a non-visible area to check compatibility of lacquer or paint. The Montana Varnish Range has a varnish for most applications and to cover most materials. Montana Gold Tech Aluminium Primer spray 400ml can size Pre-Treatment of Aluminium Enhances adhesion Increases surface usability For use on Aluminium Metal prior to painting