Tricks and tips for everyone


What does a weld-through primer do?

What does a weld-through primer do?

These primers are generally applied prior to the welding process. The purpose of a weld through primer is to prevent corrosion and rusting of metal joints where two metal pieces are welded together and provide permanent corrosion protection on the inner edges of the welded metal pieces.

Can you weld through etch primer?

Etchweld is an etching primer corrosion protection spray Etchweld can be used as an adhesion promoter for two pack fillers, putties and stoppers. Unlike other etch primers, Etchweld also provides a weld-through function.

Can you weld through epoxy primer?

Epoxy and DTM primers will ensure a solid base for corrosion protection and that your topcoats will adhere as well. During welding operations, the heat from GMAW/MIG (Gas Metal Arc Welding/Metal Inert Gas) welding will burn and vaporize the zinc-rich weld-through primer at the weld location.

Can you weld through rust?

You can weld over rust by selecting the appropriate process and consumables. However, ensure the weld is strong enough for the job. The best welding process to weld over rust is stick welding with cellulosic electrodes. After that, flux-cored welding with self-shielded wires.

Do I need weld-through primer?

For a quality weld to be made it’s required that the weld-through primer be removed from the direct weld zone before welding the joint, when MIG welding. Many OEMs have a position on when and how to use weld-through primer or when it shouldn’t be utilized.

Is all zinc primer weld through?

Weld through zinc primer is a high adhesion, super conductive zinc rich weld through primer. Effective rust protection for SPOT, MIG and TIG welding. Please note, a higher minimum P&P charge applies to any orders containing liquids or aerosols due to shipping T&Cs….Additional information.

Weight 0.6 kg
Quantity 1, 2, 4

What’s the best way to weld rusty metal?

You can weld rusted metal with a flux-cored wire and receive good results because it contains flux material. The flux creates an aggressive arc and contains elements that can clean the puddle. It is the next best welding process for rusted metals after stick welding.

How do you prepare rusted metal for welding?

The first thing you need to do is wipe the metal with acetone. Then use a wire brush or acid to remove surface contaminants. Then rise and clean with acetone again. If you use the wire brush first then you won’t be removing the contaminants effectively.

Can you weld through zinc chromate primer?

First they are all mostly zinc based and when applied the zinc covers the bare metal and seals out moisture and rust. Because of their chemical make up weld through primers are conductive and can be welded on or near.

What happens if you weld over rust?

Can you weld rusty metals? You can weld rusty metals if you have the proper welding process and consumables for the job at hand. However, you cannot weld rusty metal for critical work because rust lowers the tensile strength and causes many defects.

Related Posts