DAP Global, Inc. manufactures home improvement products and has been in business since 1865. The company describes itself as a leading manufacturer of caulks, sealants, and patch-and-repair products, serving both professional trades and homeowners.
ASTM C920, Class 12.5
P&T ProductsSince 1988, P&T Products has manufactured Dura-Fill hot-pour crack and joint sealants for asphalt and concrete pavement from its facility in Sandusky, Ohio. Its materials serve everything from driveways to highways and are made in the USA, with every batch tested in the company’s on-site laboratory. P&T’s hands-on leadership and direct access to its sales and lab teams are central to its customer service, while many employees bring decades of experience to the work.SANDUSKY, OH
Kaufman Products, IncFounded in 1963 by Irvin and Carol Kaufman, Kaufman Products manufactures concrete construction, repair, and restoration materials in its own American factory. The family-owned company has grown from a marketing firm into a maker of more than 200 products, with its brand approved for highway and infrastructure work across the United States. Kaufman also emphasizes lower-impact manufacturing, using recycled or reconditioned packaging and waste-stream materials in selected formulations.BALTIMORE, MD
Dymax CorporationFounded in 1980 as the American Chemical and Engineering Company, Dymax Corporation develops rapid-curing materials and matched dispensing and UV/LED curing equipment for manufacturers. The family-owned and operated company is known for integrated adhesive chemistry and equipment solutions, including light-curable adhesives, supported by application engineering for manufacturing processes.ZELIENOPLE, PA
National Engineering Products, IncSince 1934, Washington, D.C.-based National Engineering Products has manufactured American-made sealants for high-temperature, high-pressure industrial joints and fire-stop applications. Its signature COPALTITE compound has remained on the U.S. Navy’s Qualified Product List for more than 90 years, while asbestos-free NEPSEAL 30 serves as a non-hardening fire-stop sealant. All products are made in Washington, D.C. for distribution across the United States and worldwide.BETHESDA, MD