Stainguard is a premium acrylic stain blocking primer designed to block and seal typical household and commercial stains. This multi-purpose primer seals in stains such as marker, crayon, lipstick, graffiti, light water stains, and dark paint colors. The versatile 100% acrylic resin has excellent adhesion and flexibility allowing it to be used on a variety of interior and exterior surfaces. Its high hiding, waterborne formula provides a low-VOC, low odor, quick dry alternative to solvent-based primers.