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 Can I build my final membrane all at once? Do I have to coat Liquid Rubber Seam Tape? Is Liquid Rubber Foundation Sealant safe for drinking water? Comments 0 comments Please sign in to leave a comment.