Waterstop King

Waterstop has a singular purpose: To prevent the passage of fluids across and along concrete joints. This page is dedicated to all things waterstop, as used to seal joints in concrete construction. Feel free to post any comments or questions and I will answer promptly.

Wednesday, August 13, 2025

Waterstop Keycup® in Action

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Keycup® is a multi-function, reusable concrete accessory that securely holds waterstop in place while simultaneously creating a keyed constr...

Friday, May 16, 2025

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JP Specialties, Inc. is a leading manufacturer of high-performance waterstop and concrete joint sealing solutions, serving the constructi...

Saturday, July 27, 2024

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"You Can't Stop Waterstop" My green BMW X5 M Competition proudly displays the license plate “H2OSTOP,” a nod to the innovati...

Monday, December 04, 2023

Thermoplastic Waterstops

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Thermoplastic waterstops are essential components in concrete joints, designed to provide a watertight seal and prevent the passage of fluid...

Friday, November 25, 2022

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Earth Shield® TPV (thermoplastic vulcanizate) (aka TPE-R) Waterstop is the world's leading chemical-resistant waterstop, with renowne...

Wednesday, April 20, 2022

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Waterstop Tortuous Fluid Flow Path You can quantify the effectiveness of a waterstop by calculating its fluid flow path. The fluid flow pat...

Friday, September 24, 2021

What is Thermoplastic Elastomer Rubber? TPER, TPO, and TPV?

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Understanding the difference between TPER and TPV is the key to writing more robust specifications for chemical-resistant waterstop. The key...

Monday, May 31, 2021

Waterstop Overlay Art

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Saturday, May 22, 2021

Waterstops for Environmental Compliance of Liquid Tight Concrete Structures

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Waterstops for Environmental Compliance of Liquid Tight Concrete Structures is a targeted course of instruction and professional developmen...

Thursday, April 22, 2021

Earth Day 2021

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About Me

David R. Poole: Temecula, California, United States; David R. Poole is president of JP Specialties, Inc. - a company dedicated to innovation and excellence within the concrete construction industry. David serves as Secretary of American Concrete Institute (ACI) 350 Environmental Engineering Concrete Structures Subcommittee K (Hazardous Materials) and G (Tightness Testing), and also serves as an Associate Member on Subcommittee A (General and Concrete). A member of the San Diego Chapter of the Construction Specifications Institute (CSI), and a frequent public speaker, David’s accredited engineering seminars are requested nationwide by major engineering firms including Montgomery Watson Harza, CH2M Hill, Carollo Engineers, Jacobs Engineers, Camp Dresser McKee, Fluor Corp., Kellogg Brown & Root, and many others. David has also taught waterstop theory, technology, and installation to project owners, concrete accessories distributors, and contractors in the field. David has consulted on and written national CSI-format 3-part specifications for a variety of engineering firms and governmental agencies including the July 1995 U.S. Army Corps of Engineers Master Specification (CEGS 03250).

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