nVent Erico Cadweld

The original nVent ERICO Cadweld exothermic welding system.

Invented in 1938. Patented in 1939. nVent ERICO Cadweld has been making connections easier for installers from the beginning and leading the industry in quality, performance and innovation ever since.

For contractors and engineers, we put everything you need to know about Cadweld in one place. How to specify, how to install, how to select a mold and stay up-to-date on all things Cadweld.

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In 2020, nVent ERICO continues to innovate with an unwavering commitment to safe, adaptable, easy-to-use products. The nVent ERICO Cadweld Plus Impulse Exothermic Welding Control Unit incorporates new features designed to accommodate multiple power sources and improve safety.