Introduction

When it comes to electrical grounding, bonding, and lightning protection, the reliability of your connections is critical. Traditional mechanical joints can loosen, corrode, or fail over time — but Exothermic Welding provides a permanent solution. It ensures superior conductivity, corrosion resistance, and long-term durability, making it the best choice for electrical professionals worldwide.

What Is Exothermic Welding?

Exothermic Welding, also known as Thermite Welding or CADWELD, is a process that creates a molecular bond between two conductors using a high-temperature chemical reaction. This reaction melts copper and fuses the metals together, forming a solid, permanent, and maintenance-free joint.

Unlike mechanical connections, exothermic welds do not rely on pressure or external energy, ensuring unmatched performance over time.

Why Choose Exothermic Welding?

⚡ Permanent and Reliable Bond
The weld becomes part of the conductor itself — it can’t loosen or corrode.

🔩 Excellent Electrical Conductivity
The welded joint offers conductivity equal to or better than the conductors.

🌧️ Corrosion and Weather Resistance
Perfect for harsh outdoor environments — from substations to grounding systems.

🔥 No Maintenance Required
Once installed, exothermic joints are 100% maintenance-free.

🛠️ High Mechanical Strength
The solid copper bond can withstand repeated fault currents and mechanical stress.

Applications of Exothermic Welding

Exothermic welding is used across many industries for:

Earthing & Grounding Systems

Lightning Protection Networks

Power Plants & Substations

Railway & Metro Infrastructure

Oil, Gas, and Renewable Energy Projects