How do I cover gaps and cracks? Liquid Rubber Seam Tape or Liquid Rubber Geo-Textile is used to bridge gaps, cracks, seams, vents, protrusions... Related articles What should I use to clean up before applying Liquid Rubber Foundation Sealant? Can this product be used to waterproof shower walls and base? Can it be tiled over? How should I prepare the surface? Will sun have an effect on the Liquid Rubber Foundation Sealant? Is this product good for adhering to wood. I'm looking to waterproof a 1/2 whiskey barrel for ponding ? Comments 0 comments Please sign in to leave a comment.