Why etching primer

There are 1K products that work well for corrosion protection, that are also available in spray cans. So, if you have just a small area and you're wanting to apply such corrosion protection to, a Self-Etching primer in a spray can may be the way to go.

Very simple. There are a lot of ways to do this. If you have a bigger area, let's say bigger than a gold dollar coin, you can mix up some epoxy and use that. If it's smaller than that, you could use a spray can of Self-Etch primer. This is a primer surfacer, so you get your standability with it.

But it also has some acid in it, which acts like a Self-Etching primer. DTM can be applied directly to steel and then sanded just like a primer surface. Important Notes: On epoxies, some have an induction time. Think of it as they have to kind of get to know each other a little bit before they bond.

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Prime It - Red Oxide Primer. Rust Converter. Zinc It. CRC Etch It. Aerosol ml, pack size 6 Self-etching primer combines the two-step process of etching and primer into one chemical.

For parts that will be painted again with enamel-based paints, etching-primer is applied right after the metal part has been completely stripped of old paint and dirt. This not only protects the metal from flash rust due to oxidation, but also prepares the surface for the final paint coat. The primer itself includes acid and zinc as the operative elements. The acid burns into the metal chemically and the zinc applies a seal. For the etching process to work correctly, the metal must be completely bare so that all oil residue and previous paint can be removed.

Any rust on metal parts must be removed first either by sanding, media blasting or brushing off with metal brushes. Self-etching primer will not get rid of the rust; it will only paint over it.