2 Part Epoxy Aerosol Primers

[Tank5]

I searched and found 2 part epoxy aerosol primers mentioned but not much more than that. If I missed a thread that answers my questions please link it, I could not find it.

I want to know if anyone has used 2 part aerosol epoxy primers and how they worked out? I do not expect they are as good as the DuPont gun sprayed epoxy primers but will they provide a good base for a non restoration type paint job? Will it protect the bare metal surface well enough to prevent rust on a tub stored indoors? If you have had any experience please share the brand.

I am considering using them because I have a tub I want to do some metal work on and want to blast and work on sections at a time. It is going to be a slow process for me and I want to spray something over my work after I am finished and not let it sit bare for months. The aerosol would let me do this easily. If I use it, I would like to leave it on as the base coat if it will hold up. It would be nice not to have to strip it all of when I am done with the metal work. At this point I am not sure if I will do the final paint or pay a shop to do it, so asking them what would be best is not a option at the moment.

 

[Splangy]

If it's a premixed epoxy in an aerosol can, its not a real 2k epoxy product. If it was, it would cure inside the can long before you purchased it.

I remember there being a company that made a real 2k epoxy in a spray can. The spray can actually had two chambers and you had to do something to get the two components to mix. I never used it.

 

[Tank5]

I am asking about the 2 part epoxy that has a second chamber in the can that has to be released with a button on the bottom of the can that allows the two parts to mix. I know that after the two parts mix you have to use the whole can if not anything left in the can will cure and be unusable. I would not expect you could call it a two part if it came pre-mixed.

I have used two paints that come in a can like this an found that they went on pretty easy. I did not have a the vehicle long enough after the touch up with it to see how it held up. I was told buy the paint shop that the 2 part paints in an aerosol can hold better than a typical aerosol spray paint but UV will degrade the finish over time. The paint is also more resistant to chemicals.

Back on topic I am wanting to use the primer and since it will be covered, how does it hold up under a real paint job?

 

[PAToyota]

What brand are you planning to use? I have some experience with Eastwood’s 2K aerosols. They seem to do a reasonable job and for what you’re talking about a 2K spray can may be the best option. Even with a touch-up gun, you’re going through the trouble of mixing things up and then cleaning the gun out again when you’re finished.

I will say that a can does cover quite a bit. Depending on how much you’re working on and the fact that the spray can is single use once you activate it, even the spray cans could add up.

This sounds like it is just what you’re talking about - as he says, you’re going to have to (at a minimum) scuff the primer before going over it in the future:

 

[Curt]

Those 2k primer cans can be pricey with a short pot life. It would be cheaper to mix up what ya need and shoot it, sounds like your already have some spray equipment.

 

[slomoe]

i've used the eastwood for touch-up cause i don't have a gun. very satisfied -- goes on good and has held up well for the 3 months it has been exposed to the elements -- i haven't over coated yet. but a can doesn't go real far but this is balanced with the convenience.

 

[Tank5]

Curt, I do have some equipment to mix and spray I just do not want to do it for the small areas i am looking to work on. I am mostly drawn to the can for it's convenience. I might just have the whole tub blasted and primed then do the metal work and prime what I mess up.

 

[xtremeVA]

TP tools has an aerosol epoxy...2 chamber can that once activated gives a few days shelf life. Yes, one can mix up some primer in a gun, but for spot repair it seems as if an aerosol is very convenient.

Aerosol Primers for Paints & Primers - TP Tools & Equipment

 

[PAToyota]

I guess it comes down to what sort of work you’re going to be doing? If you’re talking a few weekends and three or four cans, the aerosol is probably a good idea. If you’re looking at something like a dozen cans, I’d start thinking about other ways of doing things.

If your question is just whether the aerosol is a reliable alternative to mixing primer, I’d say that you won’t really notice the difference or have to consider stripping the aerosol just to prime the whole thing.

 

[TonyP]

I've used Eastwoods 2k for some fender work on a BMW. It's not cost effective for large surface but for smallish areas it works very well especially with proper prep work. The 2k clear coat will orange peel but nothing some wet sanding won't fix.

The shelf life after popping the bottom of the can and mixing is about 24hrs.