Pre-primed Exterior Weatherproof Cowls Match or contrast cowl colours with exterior walls for the right design fit everytime. Just purchase your choice of paint colour and you are ready to go. These cowls are pre-treated with a high quality primer and ready to paint on-site. Recommended Preparation and Application • Sand with P400-P500 before a top coat is applied. - Apply two coats (if necessary) allowing, at least, two hours between coats. - Do not apply at temperatures below 10ºC or when it the teperature is liable to drop below 10ºC during the drying period. It is recommended that a waterborne low sheen paint, such as Resene Lumbersider, is used.