DuPont Performance Building Solutions Signs Agreement with HydroBlok to Supply Styrofoam™ Brand XPS for their HydroBlok One™ building panel.

WILMINGTON, Del. January 28, 2026 —  DuPont today announced it has entered into a partnership agreement with Hydroblok, an emerging innovator in lightweight, waterproof, insulated panel systems, to supply Styrofoam™ Extruded Polystyrene (XPS) for the HydroBlok One™ building panel.  The combination of these two technologies brings to market an innovation that provides unique durability, setting a new industry standard that meets the needs of builders and contractors across North America. Together, the two companies are committed to simplify construction and accelerate installation practices.

“This partnership reflects DuPont’s commitment to developing solutions that help contractors and builders work smarter, simpler, more efficiently and faster,” stated DuPont’s Tim Lacey, Global Vice President & General Manager, Performance Building Solutions & Corian® Design.

Hydroblok™ has built its reputation and proven its technology in the shower space for over a decade with over 200,000 shower installations in numerous major hotel properties. The Hydroblok™ [shower] system dramatically reduces labor costs with its simple, one-person setup, making installation fast and easy.  The HydroBlok One™ building panel is engineered for superior water resistance and added thermal performance featuring DuPont™ Styrofoam™ Brand XPS in its core.  

Through this partnership, DuPont Performance Building Solutions and Hydroblok™ are committed to collaborating on additional applications and solutions that can further advance building technologies and benefit contractors, builders and homeowners alike. The companies are field testing labor-saving wall system solutions that will improve the installation of Stucco exterior walls.

“We are excited to bring together two complementary innovations — DuPont’s leadership in building-envelope performance and HydroBlok’s disruptive panel technology — to provide an all-in-one solution that performs from the inside out,” noted Colin House, Hydroblok™ CEO.

HydroBlok products, now powered with DuPont’s Styrofoam™ Brand XPS, are available through a growing network of dealers and distributors across North America. For more information, visit Hydroblok.com or connect with a representative near you.

About Hydroblok

HydroBlok is disrupting construction with a lightweight, 100% waterproof, mold-proof composite board engineered to replace antiquated building materials with a single, easy-to-install solution. Trusted by premier hospitality brands like Hilton, Marriott, Hyatt, and Ritz-Carlton, HydroBlok has achieved over 200,000 flawless installations. Building on this proven track record, HydroBlok is now expanding into exterior sheathing, drywall, and stucco applications.

Every HydroBlok innovation delivers unmatched durability, cuts labor costs, and provides superior thermal efficiency, setting a new industry standard.

For more information, visit www.hydroblok.com.

About DuPont Performance Building Solutions and Corian^® Design
Grounded in science, DuPont Performance Building Solutions and Corian^® Design are working alongside those who also seek a sustainable tomorrow to help people thrive at home and in their communities for years to come. By developing solutions for managing the air, water and thermal performance of buildings and residences, we help our customers build energy-efficient, resilient, and durable shelters in a rapidly changing world. Backed by unmatched industry insight, building knowledge, and technical support, as well as world-class brands such as Styrofoam^™ Brand, Tyvek^®, and Great Stuff^™, our products and services portfolio enables customers to focus on what they do best, no matter where and how they choose to build.

About DuPont
DuPont (NYSE: DD) is a global innovation leader, providing advanced solutions that help transform industries and improve everyday life across our key markets of healthcare, water, construction, and transportation. More information about the company, its businesses and solutions can be found at www.dupont.com. Investors can access information included on the Investor Relations section of the website at investors.dupont.com.