Under the Anti-social Behaviour Act 2003, it is an offence to sell aerosol spray paint to persons under the age of 16. Upon delivery, you will be asked to verify your age with a photo driving licence, passport or a proof of age card, such as the PASS card from the national Proof of Age Standards Scheme.Montana Gold 400ml Metal Primer Montana Gold metal Primer provides the perfect base coat for prepping metal surfaces before spraying. Once dry this primer will allow the Montana colour sprays to be applied for more efficient and more permanent results. You must be 18 years of age or over to buy Montana Spray products.