|11-05-2010 09:29 AM|
|deadbodyman||Dave that sounds just like the PPG I was using years ago...I would sand it before putting ANYTHING on it...Once sanded it should be fine...|
|11-04-2010 09:14 PM|
I'm happy, you all have answered my question(s) and given me some new things to consider.
I'm a long time lurker and and want to thank senior members here for their selfless
support of us newbs. Its probably been 30 years since I tackled any significant body work,
what little one could glean back then from the monthly hot rod mags is a stark contrast to the wealth
of information you guys share here.
FWIW-My observation of the epoxy that I have- Once applied it's scary shiney, as shiny as a top coat.
I can believe once hardened adhesion to subsequent layers would be low?
|11-03-2010 08:19 PM|
I'm going to go out on a limb and state that, in all likelihood, a material that is not compatible with an epoxy substrate is one that is best avoided.
For me, a topcoat that explicitly states it is not compatible with epoxy makes about as much sense as a primer that is not compatible with body filler.
I now utilize epoxy primer extensively on all my top-shelf work , as its attributes are many, and shortcomings few. I have yet to have a problem, in over five years of extensive epoxy primer use, that can be directly attributed to its proper application.
Just my 2 cents.
|11-03-2010 06:36 PM|
Off hand right now I don't have those links available on this computer as it's new. When checking tech sheets to some products that my local jobbers offered me to try there were a few that weren't to my standard for the job I wanted them to perform and didn't meet the requirements that the jobbers were boosting about. Those are the exact reasons I don't purchase anything without looking up the manufacturers tech sheets. I've been burnt too many times in the past.
That's why I always recommend looking up the tech sheets before using a product. I can't believe how many people fail to do this in this day and age when the information is so easily available to them.
|11-03-2010 02:53 PM|
i to have done lots of the Dodge vehicles with there gummy or crappy Epoxy.
your theory may somewhat be close
but SHINE is still waiting
|11-03-2010 10:45 AM|
I have a theory.....Everyone has seen those Dodge trucks peeling away.
I've done a bunch of them by simply by carefully scraping the paint off with a razor (where the paint was still on ,the epoxy was shinny underneath)Then I just sanded the old epoxy with 320 da... A little Spi epoxy as a sealer and paint...they've held up fine for years...I think the cause wasnt the paint or the epoxy...just that the epoxy sat to long at the factory (like over the weekend) and got to hard and slick for the paint to stick....All epoxy primers are definitely not equal...Way back twenty yrs or so when we were using PPG their epoxy did the same thing, slick and shinny but we never tried to use it as a sealer ...That stuff was hard to sand with 80 grit,nothing stuck to that unless it was sanded...
|11-03-2010 09:23 AM|
|shine||i'm still waiting to hear what wont stick to epoxy.|
|11-03-2010 08:42 AM|
Ditto what DBM has said.
|11-03-2010 08:32 AM|
Ive been using SPi epoxy for a few years now and not only can it be used as a sealer but IMO its the best sealer...
Some epoxies dry very hard and slick so they make a poor surface for paint to stick to. So its the epoxy not the paint thats the problem...I'll never use any other epoxy primer or sealer again...It really is the best out there...and its affordable too.but what makes Spi head and shoulders above the rest is,if you ever have any questions just call the hotline,ANY questions will be answeard .even stupid one's, like the ones I ask...In all my years I've never seen anything like it....SPI gets a rating of all 10's across the board....I cant say that about ANY other company in this business..
THIS epoxy can be used under ANY brand or type of paint.....as far as I know.
All the ones that matter anyway...
|11-02-2010 10:52 PM|
|11-02-2010 05:39 PM|
Doe's that explaination clarify it for you?
|11-02-2010 12:31 PM|
|11-02-2010 12:30 PM|
I've now used it to repair those crappy chrome-on-alloy GM rims, sticks like mad, no leaks.
|11-02-2010 12:23 PM|
|11-02-2010 11:22 AM|
I haven't seen epoxy primer in stores. Where can I buy it?
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