BK-Stain Blocker is an acrylic primer for stain insulation for indoor and outdoor use. The product provides excellent adhesion to different surfaces and good coverage. It is characterized by exceptional ability to block nicotine, soot, rain leakage, coffee, wine, food, pen, marker, and similar stains, and prevent their occurrence on layers of finishing paint. Any dispersion paint from the Bekament Interior Group can be used as a finishing paint. It is classified as an environmental-friendly product that is not harmful to human health and the environment