Can brand new Colorbond be painted with a o primer exterior acrylic?
It is almost impossible to get paint to stick to new Colorbond as it was designed to be a product that never needs painting. It is usually recommended that the Colorbond be weathered for several years so the surface has a chance to chalk before even attempting to coat it. It is then advisable to use an etch primer before applying two coats of either acrylic or enamel. If however it is deemed necessary (eg because colour change is required), then the most effective treatment is probably as follows. Wash with solvent (Min Turps or White Spirit) to remove surface grease/oil etc. Abrade surface with fine grit to roughen surface. Apply Acrylic undercoat and allow to dry through (it may take as long as a fortnight before adhesion is developed), prior to top coating with either acrylic or enamel. This is no guarantee given with this procedure, and it may be regarded as impractical in some circumstances, however it is offered as advice only in answer to the question. What is the proceedure of
It is almost impossible to get paint to stick to new Colorbond as it was designed to be a product that never needs painting. It is usually recommended that the Colorbond be weathered for several years so the surface has a chance to chalk before even attempting to coat it. It is then advisable to use an etch primer before applying two coats of either acrylic or enamel. If however it is deemed necessary (eg because colour change is required), then the most effective treatment is probably as follows. Wash with solvent (Min Turps or White Spirit) to remove surface grease/oil etc. Abrade surface with fine grit to roughen surface. Apply Acrylic undercoat and allow to dry through (it may take as long as a fortnight before adhesion is developed), prior to top coating with either acrylic or enamel. This is no guarantee given with this procedure, and it may be regarded as impractical in some circumstances, however it is offered as advice only in answer to the question. What is the procedure of A