As I said last time I was painting the body with MCW Hemi Orange, and it was looking good--in fact, the smoothest and most orange-peel free paint job I had yet done. There were a few chips in the engine compartment from the hood being test fitted, but otherwise, it was looking very good.
The problems began when I applied about the fourth coat of Krylon Crystal Clear. It's acrylic coating, so the label says, and I would assume that that means there should be little or no interaction with the underlying lacquer paint. Adding to this false sense of security: I have this used same clear coat over many Duplicolor Lacquer finishes without incident. And it was OK for the first 3 coats. So it should be OK to use over MCW lacquer every time, right?
Wrong. During clear coat pass number four a huge series of bubbles and orange peel welts welled up on the passenger side roof.
I tried to wet sand the bad spot with 2000 sandpaper--figuring maybe the extreme orange peel could be fixed with polish somehow. To make a long story short the entire paint job, all the way down to the primer and beyond, came up when I tried to sand it. So I had a catastrophic failure of paint adhesion here. What you see here is what's left--the paint literally got stripped down to the raw plastic.
I have no idea what happened or why, but I had already applied the bare metal foil--which came out pretty well, the Keith Marks decals (didn't do a perfect job, but it was going to be good enough) and painted in the side turn signals. In other words, in addition to the paint itself, there was a lot of time and effort put into this part of the build before disaster struck.
This is a major setback--I am now thinking I am going to have to strip the paint and start the entire paint process over--I can't see any other way to save this thing.
One thing for sure: I am going to do more research as to what sort of clearcoat works best over MCW paints and not assume every acrylic will be inert over every lacquer.
No comments:
Post a Comment