Waterstops for Concrete

800-821-3859 • 951-763-7077

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J P Specialties, Inc. Free Services Include:
  • Complete plan takeoff and waterstop map.
  • 3D isometric waterstop details (for every fitting in the print).
  • Fast jobsite delivery.
  • Exclusive waterstop site pickup and recycling services.
  • Waterstop welding certification course for the contractor installing the Earth Shield® waterstop.
  • Accredited online and in-office continuing education webinars and seminars for engineers and architects.
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Company president, David R. Poole, demonstrates proper waterstop welding at a jobsite.
About J P Specialties, Inc. (manufacturer of Earth Shield® waterstop)
Since 1954, J P Specialties has been at the forefront of manufacturing the Earth Shield® line of waterstops, known for their exceptional quality and performance. We offer a comprehensive range of waterstops and accessories, backed by unparalleled technical support and service.

Industry Leadership
Our technical team includes leaders who serve as officers on multiple ACI committees, demonstrating our commitment to excellence in engineering. We are proud to be the first waterstop manufacturer to achieve
NSF 61 certification, setting the standard for quality and safety in the industry. Additionally, our owner, David Poole, authored The Little Book of Waterstop, the definitive guide widely used by professionals in the construction sector.

Professional Development
J P Specialties is dedicated to advancing industry knowledge through our popular
AIA-accredited seminar. This seminar, available nationally, internationally, and online, provides one-hour CEU credits and has been attended by thousands of engineers and owners.

Contractor Support
We are committed to supporting contractors with competitive pricing, extensive inventories, and customized factory fabrications for both standard and custom waterstop fittings. Our comprehensive training programs include on-site and online waterstop welding schools, where attendees are certified in proper waterstop welding techniques.
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At J P Specialties, we are committed to delivering the highest quality products and services to meet the evolving needs of the construction industry. Partner with us for your next project and experience the difference in quality and expertise.
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The Primary Choice for Secondary Containment™
Contact the Waterstop Experts at 951-763-7077 or [email protected]

Waterstop FAQ

  1. What is a waterstop? — Waterstops are extruded plastic, formed metal, or hydrophilic rubber internal seals that prevent fluid passage through moving and non-moving concrete joints.
  2. What are the selection criteria for waterstops? — Required chemical resistance, application temperature, head pressure resistance, ability to move, and size are important considerations when selecting a waterstop to specify and install. Here is a diagram to help.
  3. How long is a roll of waterstop? — Generally, most waterstops are supplied in 50 linear foot coils. Some waterstops (retrofit and EB Cap profiles) are only ten linear feet straight due to their non-symmetrical geometry.
  4. How do I weld and install a waterstop? — Complete installation and welding guides are here.
  5. Can I use a split waterstop profile? — Split waterstop is acceptable if your concrete joints are in continuous straight lines with no intersections. However, few projects have only straight concrete joints; therefore, split waterstop fails as the “split” can not open up properly and be placed flat against the formwork in a change of direction configuration.
  6. How much head pressure of water can a waterstop resist? — The thicker and wider a waterstop is, the more head foot of water it can withstand. Here is a waterstop head pressure selection matrix.
  7. How can I purchase Earth Shield® waterstop? — Earth Shield® Waterstop is readily available from a variety of sources: Preferred Regional Stocking Partners — We are partners with some of the very best Concrete Accessories Distributors in the world. All our preferred partners have large stocking inventories and are factory trained to provide the utmost in on-site assistance. Distributor Sales — Earth Shield® can be special ordered from many distributor sales channels worldwide. Factory Direct — Earth Shield® may be contacted directly for project quotation and purchase. Call 800-821-3859 to place your order or request information.

Additional Services

  • Project and Product Certification — We assist the Design Engineer and Project Owner with individual project and product certification. When you specify our waterstop, you can be assured it is the correct product for your application.
  • On-site waterstop welding certification class — $500.00 flat fee
  • On-site waterstop installation assistance — $1,000.00 per day
  • Telephone and Web-based assistance — Always FREE — Schedule on our calendar here.
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