PO Box Shipping Unfortunately we cannot ship to a PO Box. Related articles Calculate Shipping Do I have to coat Liquid Rubber Seam Tape? How To Tint Liquid Rubber Tintable Products I hope to build a concrete reflection pool 60 feet long, 4 feet wide, 4" deep build the base first; then the walls. Can I use Liquid Rubber to render the pond reliably waterproof? Are your products Certified for Potable Water Comments 0 comments Article is closed for comments.