What ever you do don't use Epoxy Mastic , I had read very good reviews about this paint in the classic car press and decided to give it a try alongside its associated rust converter from the same supplier, last year or the summer before I cleaned prepared and treated the underside and inner side of the chassis on on of my 401's with this system, the paint itself is mixed with a hardener on a 50/50 basis and I applied it with a brush which was hard going as it was a thick consistency, a bit like brushing something with tar but it cured to a hard dry finish with good coverage which seemed to have promise.
However less than 2 months later two areas of it simply fell off, I put it down to local contamination but could not work out why as a very dry surface rusted chassis had been fully wire brushed before treatment.
I went over the whole of the rest of it to check adhesion and all looked ok, the exposed areas I painted with another paint.
The car has not moved from my lift since as work has been on going, yesterday I decided it was time to apply Dinotrol wax to the underside, while doing this I noticed a few areas looking odd, you can imagine my frustration and dismay when I discovered that this much praised rust protection paint was peeling off the chassis in some areas like sheets of paper, four sections about 2 to 3 inches x 6 inches, now with wax everywhere repainting was not really an option so the exposed areas where treated with wax.
Returning to the job today to finish off a few areas I could see another section where the air pressure from the sprayer has started to lift this blasted paint, exploring the situation with a scraper easily removed a section of the Epoxy Mastic the full width of the chassis rail and a length of about 8 or 9 inches, again now wax treated.
I did not want to spend days removing the wax with white spirit never mind the cost of wasted materiel and even more time removing the remainder of this useless paint from the chassis, all I will do now is carefully monitor the situation and retreat as needed.
This material was put on absolutely as per the instructions in the middle of the summer, despite all the hype in the classic car magazines it has turned out to be one of the worst rust protection paints I have ever used.
|