What should I use to clean up? Soap and water, baby oil, bristle brush Related articles Can I build my final membrane all at once? How should I prepare the surface before applying Waterproof Sealant? How come it feels tacky? Is it cured? The black surface turns brown when wet? What temperature can I apply Liquid Rubber Waterproof Sealant? Comments 0 comments Please sign in to leave a comment.