What is the difference between surfacer and primer?
Some brands alternate using the terms primer or surfacer leaving some people to guess that there is no real difference. Typically a primer is simply to prepare a surface for painting, especially if the surface has differences in color. Use a primer to make the surface a uniformed color. Then paint over that.
What is the difference between etching primer and filler primer?
Because it cures quickly, it’s the method of choice for collision shops. But a key difference with etch primer is that you need to apply your filler or bondo first directly to the metal before spraying it.
What is the difference between etch primer and high build primer?
A high build primer is the next step after self etch priming. The high build primer adds a relatively thick coating of paint which is sandable and is used to remove the imperfections in the panel. Normally two coats of high build primer will be sufficient.
Do you have to prime over self-etching primer?
Self Etching primer can in fact be painted over but you need to closely follow the manufacturers application and top coat guide. As a rule of thumb Self Etching Primers need another coat of primer over them to fully seal everything up long term.
What is a primer surfacer used for?
About Primer Surfacer Rust-Oleum® Primer Surfacer is ideal for improving adhesion of the final topcoat and enhancing paint’s color. When brushed or sprayed to metal or fiberglass surfaces, this high build, rust resistant, sandable formula will hide sanding scratches and quickly fills uneven surfaces.
What is the difference between Mr surfacer 500 and 1000?
Mr. Surfacer 1000 contains finer granules than Mr. Surfacer 500 and is useful for filling in bumps, dents, scratches, for removing bubbles and finishing bases. Can be diluted with either Mr Thinner or Mr Levelling Thinner.
Do you have to prime over self etching primer?
When should self etching primer be used?
After you remove the rust scales from the metal on your car, you need to apply self etching primer. It’s a mix of phosphoric acid and zinc. The way it works is that the acid forces the zinc into the top of the metal. It’s purely a surface coating, and it doesn’t stop the rust.
What type of primer should I use over self etching primer?
Urethane Primer
We suggest using a Urethane Primer over the self etching primer as a barrier between the self etching primer (Do not use Epoxy over Self Etch). Urethane primer can be top coated with most coatings so you will immediately eliminate any worries of adhesion issues with your top coat.
What kind of surfaces can etch primers be used on?
Etch Primers are intended for use as primers on new or relatively sound ferrous and non-ferrous metal surfaces. Examples of the types of surfaces on which these products would be used are light-weight tubing or thin sheet metal surfaces that cannot be prepared by abrasive blast cleaning. In such cases the combination
Do you have to sand before using self etching primer?
Etching readies metal for a topcoat (source). The etching creates a rougher surface for the topcoat to cling to, much like sanding would accomplish. It is often still recommended by experts to sand the metal before (and after!) the primer to ensure the best adhesion to the next coat of paint.
What’s the difference between DTM and self etch primer?
Lastly, there is one third option, and that’s a DTM, Direct-to-Metal 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.
What’s the difference between HBC and self etching primer?
HBCs are formulated to only require one coat to complete the job (source). Self-etching primer is thick and typically only needs one coat before you can move on to the topcoat. For the most part, applying a self-etching primer is like applying a regular primer.