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. By studying paint defects, you can identify possible causes in the workshop or garage and help find solutions to avoid such problems in the future Nav Menu.
Sell With Us Repairer Finder. Cleaners Detailing Kits Headlight Restoration. Repairer Finder Blog. Problems and Solutions. Self-etching primer frequently comes in a gray color, similar to other primer paint. The tell-tale feature will be on the description of the paint container, specifically identifying the self-etching feature included in the paint. The most common paint type comes in a spray can version, which is the easiest to apply.
The application does not require multiple coats. One coat is enough since the secondary and final coats of paint will provide the actual outer surface. For metal parts with nicks, dents, and scratches, Bondo or similar filler needs to be applied and sanded down first to provide a smoother surface for the primer application.
The self-etching chemicals will not affect the Bondo filler once it is dried onto the metal. Since Tom Lutzenberger has written for various websites, covering topics ranging from finance to automotive history.
Single pack, as its name suggests is a one part Etch Primer where the activating acid is already combined with the paint. The advantage of Single Pack Etch Primer is, that apart from stirring, it is ready to be applied by brush to your substrate. They do not have enough acid in them to etch steel and cast iron. Single Pack Etch Primers can be sprayed, either with an airbrush or spray gun, But in order to spray single pack etch satisfactorily it must be thinned about with PQ2 etch primer thinners and sprayed at a pressure of 10 psi or below.
Both modellers and model engineers should be very wary of any etch primer sold by automotive repair or supplies shops or any single pack etch primer that does not have an expiry or best before end date on it. Whilst these are technically etch primers they do not have the same amount of the activating acid in them as is in the Phoenix Precision product. Whilst these primers are fine for aluminium, which is what they are designed and sold for, they are useless for brass and other similar non ferrous metals.
It is also recommended that you avoid any etch primer that does not require a specific thinner. It is the activated thinners that contains the acid and thus causes the reaction in the primer. Whilst the terminology of 2 part or pack means the same, the two products are as different as chalk and cheese. Two Pack Epoxy Paints are very hazardous and should only be handled in the proper environment, 2 Part Etch Primers are essentially no more dangerous than their single pack cousins.
It should also be noted and remembered that all Etch Primers do not start to etch until they start to dry. In order to ensure that the Etch Primer adheres properly to the substrate the following steps need to be followed. Firstly put on a pair of rubber gloves, this is to ensure that you do not put fingerprints back onto the cleaned surface.
Degrease the surface to be primed with the strongest solvent available. The cleaner should be applied to a clean lint free rag old cotton shirt, t-shirt etc. This should be repeated at least a further two times to ensure that the surface is clean and free from grease and dirt.
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