The Sikkens Colorbuild Primer Hardener Sanding is a highly effective primer designed to enhance the strength and performance of alkyd-based primers, offering superior adhesion and durability to a wide range of surfaces. This 1-litre bottle of Activator 2K Colour Build includes a versatile T2200 resin for rapid drying and excellent adhesion, making it ideal for both interior and exterior applications. The product's dual-action formula ensures a smooth, durable finish while effectively covering scratches, stains, and imperfections on surfaces such as plywood, oriented strand board, and medium-density fiberboard. With its easy-to-use application method and excellent results, the Sikkens Colorbuild Primer Hardener Sanding is a smart choice for professionals and DIYers alike.