Earth Shield® HDPE Waterstop is a specialized thermoplastic that is ideally suited for hot petroleum oils, diesel fuel, aromatic hydrocarbons, industrial solvents, and other aggressive, non-polar fluids that would cause significant softening and swelling of other waterstop polymers.
Earth Shield® HDPE Waterstop is available in many of the same shapes and profiles as our industry-leading, chemical resistant, Earth Shield® TPV polymer.
Install Earth Shield® HDPE Waterstop in all concrete joints. Waterstop should be centered in, and run the extent of the joint. All changes of directions should be prefabricated (see Shop Made Fittings), leaving only butt-welding for the field. If installing in an expansion joint, keep center bulb unembedded to allow it to accommodate movement as designed. Use our factory-installed brass eyelets or #3 hog rings and tie wire to secure waterstop to reinforcing steel to avoid displacement during the concrete pour. Splice straight lengths of waterstop and Shop Made Fittings to straight lengths, with an ST-10® In-Line Waterstop Splicer with the iron temperature set to 410°F to 430°F. More detailed installation instructions are in our Standard 3-part Specifications.