3M Scotchkote External Wall Coating FP 812 20ltr White3M Scotchkote External Wall Coating FP 812 is a single pack acrylic, anti carbonation, wall protection system. It provides high levels of protection against water damage, and weather damage for external walls, after only one coat. It can also be used on internal walls, and ceilings. This product provides an abrasion resistant, as well as a high degree of flexibility. The use of a primer is not usually required, making this a very simple product to