Isolatek International Email Format

Wholesale Building MaterialsNew Jersey, United States51-200 Employees

Isolatek International is a mid-sized wholesale building materials company based in Stanhope, New Jersey, founded in 1875. It focuses on passive fireproofing for commercial construction, offering spray-applied fireproofing, intumescent systems, rigid board assemblies, and thermal acoustical insulation. With four manufacturing locations across the United States, the company serves architects and specifiers with code-compliant solutions and technical support from a team with extensive experience.

Its fireproofing technologies have been used in notable North American structures such as the Apple Loop, San Francisco International Airport, and the Oculus. In 2025 the company launched FireSolve SB, a solvent-based intumescent fireproofing product, and it offers education and training for architects and specifiers through the AIA Continuing Education System.

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