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 Preformed polyethylene pond - will this product adhere sufficient to seal? What Products to use to waterproof a Floating Sauna Floor? How does it seal? How long does Liquid Rubber Foundation Sealant take to cure? How should I prepare the surface? Comments 0 comments Article is closed for comments.