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Old 10-03-2013, 09:44 AM   #1
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Newmar Owners Club
Workhorse Chassis Owner
Join Date: Dec 2011
Location: SW VA
Posts: 87
Aerosol clearcoat vs. Red Max Pro #3?

My '03 Mountain Aire gasser had peeling clearcoat on the top edge of the front and rear caps when I bought it late 2011. In June, 2012 I lightly sanded these areas, masked them off and sprayed 2 coats of aerosol clearcoat. The coach is stored in a barn whenever not in use and all winter (MN). I used it traveling from mid April 2013 to end of June - 2 1/2 months. At the end of the trip, it looked like I had never done anything and back to peeling clearcoat.

When I inquired at auto parts stores about re-spraying the areas, there were differing opinions on type of clearcoat aerosol - laquer vs. acrylic enamel. I'm not sure what I used the first time. Perhaps I used the wrong type and it would have adhered better if I had used the other type.

I have read threads here about several others experiencing this clearcoat peeling issue in the same areas and the estimates they had obtained for repainting. Since this area is not visible from the ground I don't want to spend the $1,000 or more to repaint. I just want to protect the color coat and stop any further progression of peeling.

Question:
- Can I ever get the aerosol clearcoat fix to work for more than a couple of years?

- What about coating the area where the clearcoat is gone but the underlying color is good with Red Max Pro #3 or the same Zep product. Won't this acrylic provide a good seal up against the edge of well-adhering clearcoat and protect the underlying color coat where the clearcoat is gone?
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2003 Mountain Aire 3778 8.1 L, Workhorse W-22
2015 GMC Canyon All Terrain 4 down
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Old 10-03-2013, 10:15 AM   #2
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Country Coach Owners Club
Join Date: Jan 2006
Location: Redding
Posts: 3,412
I have used SprayMax 2K urethane rattle can clear coat over gel coat with success. It is a two part paint with a 24 hr useful life in the can after activating the mixture. I have also used it over new base coat to repair some painted areas with success. I purchase it at a local auto paint supply store.

http://www.autobodytoolmart.com/spra...FSpyQgod4FEALw

I have also applied 5 coats of the Zep Wet Look to another large area of my gel coat. That result is that it looks just like the adjacent clear coated panels so far. I just applied the acrylic this spring. I have not applied the Wet Look over painted areas yet.....

The preparation took the same amount of time and the application was about 40 minutes versus several hours of masking, waiting for the wind and insects to disappear before 30 minutes of spraying.

After a couple of years of repairing peeling clear coat on gel coat (not base paint), I have found that being very aggressive in the removal of the original clear coat is required. I use a razor blade scraper and have removed all the clear coat from the rear cap of my rig for instance. It will come off in sheets as large as 12" x 24".

Doing the same thing on base coat areas would probably damage the base coat causing it to need respraying of base coat before reapplying clear coat.

When I was not aggressive, the new clear coat lapping over old clear coat would peel off because any remaining old clear coat underneath continued to loosen and open up the adjacent old clear coated areas.
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