Exothermic Welding System- KNITWELD®

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Knitweld® exothermic welding system provides a best solution through permanent molecular bonding. Exothermic welding is the industry preferred method of making electrical connections due to its inherent molecular level reliability for conductors and grounding points.

LSG PROTECT Knitweld® Exothermic Welding is a simple, efficient, high quality metal connection method exothermic welding by alumino-thermic reaction generated by high temperature to make metal molten completely, to achieve high quality welding effect. This reaction is conducted in the graphite mold of high temperature resistance, normally a graphite could be used for more than 70 points. Exothermic reaction process takes few seconds only.

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Welding does not require external heat or power source

Will not loosen or increase in resistance over time

Superior electrical conductivity than the conductors themselves

Will not corrode, oxidize, or degrade over time

Compatible with copper, steel, columbium, bronze, iron, copper-clad steel, stainless steel, Monel, niobium, brass, & silicon bronze.

Requires no special skills

Highly portable

Reduces labor costs

Knitweld Welding Procedure - Exothermic Weld

Step 1

Before the first welding, heat the mould for 3-5 minutes to make sure it is dry and clean

Step 2

Heating the conductor to make sure it is dry and cIean.

Step 3

Clean the conductor by steel brush.

Step 4

Place and fix the conductors into the reaction cavity, put the starting powder on the top of welding powder while some on the lip of the mould.

Step 5

Place the steel plate at the bottom of the mould

Step 6

Pour the welding powder into the reaction cavity. Put the starting powder in the top of welding powder while some on the lip of the mould.

Step 7

Close the lid and ignite the starting powder with lighting gun.

Step 8

After the reaction, wait for 2-3 minutes, Open the mould and clean the welding residue.


1. Before welding, check the mold clamp and adjust properly to make sure it close tightly.
2. Don't observe the welding process, it will hurt your eyes.
3.Don't touch the conductor and the joint after welding to avoid empyrosis.
4. Keep the weld metal in a dry place, don't operate when blowing

Products and Services

We supply Best in Industry products related to Exotermic welding from Moulds to Safety equipment’s, We have our exclusive facility to make custom moulds as per client requirements.

We have delivery facility to any part of India and Installation services can be carried out on Quantity basis.

Cleaning Brushes
Mould Handles
Slag removers
Exothermic Welding Moulds (Any Size)
Weld Safety Equipment’s

About LSG Protect

LSG PROTECT® is a French Company Headquartered in Thiais France specializes in all aspects of earthing, lightning and overvoltage protection. LSG has been intimately involved in all aspects of the earthing and lightning protection industry, with wide distribution network all over the world.

Knitweld® Exothermic Welding is industries best weld powder ever available, with minimum slag and best in industry quality weld output, Knitweld is widely used all over the world for many huge oil and gas projects, metros, railways, defense sectors etc.

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We can supply Samples/Products to all parts of India in best Quality and price ever available in INDIA.