Can I seam 2 pieces of epdm (rubber pond liner) with the Liquid Rubber Seam Tape? Yes. Be sure to apply a couple coats of Liquid Rubber Waterproof Sealant on the Liquid Rubber Seam Tape after. Related articles Is Liquid Rubber Waterproof Sealant environmentally friendly? Preformed polyethylene pond - will this product adhere sufficient to seal? Comments 0 comments Article is closed for comments.