What is etching primer




















Related products Below is a selection of products related to Etch Primer. Colours 1 colours. Topcoat Finishes. Colours 10 colours. Colours 12 colours. Paint needs Calculate how much paint you need.

For professional use only Because of the application method required for this product, it is labeled for professional use only. Paint your boat like a pro Find the best products to keep your boat in great condition. Get all the support you need to paint with confidence. Benefit from our continuous innovation and scientific expertise. Select your country Our products and guidelines are customised for each country. Who's painting? Resin kits are manufactured using a chemical process that is very similar to two part epoxy resins.

Whilst this allows for complex parts to be moulded it can leave a surface that is 'slippery' and does not accept paint. 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. But it's not the only primer that you can use for bare metal, it's just one option. View Epoxy Primers. Etch primers are convenient for the priming of all types of metal that require a very quick turn-around time.

They only require a very thin coat in order to etch the metal surface and create a tenacious bond. Zinc phosphate pigment offers some degree of corrosion protection. The fast dry characteristics allow the topcoat to be applied shortly after primer application.

View Etch Primers. Both provide corrosion protection, and both can be top-coated with primer surfacer. With a restoration shop, they're probably using more epoxy. If they're a high production shop, like a body shop that runs a lot of cars through, they're probably using Self-Etch. The reasoning behind that, Epoxy is the only primer that you can put body filler on top of. You shouldn't apply body filler on top of a Self-Etch primer or primer surfacer, but with epoxy you can.

Our opinion is if you're going to be doing some body work, the best thing is to put Epoxy Primer on top. 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.



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