After allowing my latest build to cure for 16 days, I sanded to 1500 grit and polished with the ColorTone medium and fine polishing compounds, so it was looking pretty good. Then I went to scrape out the bridge area for gluing, only to find the finish is peeling up rather than scraping, so I stopped and scored the edges of the area I wanted to scrape for the bridge with a razor, only to find that caused the finish to lift up around the score mark, too. I might have been able to ignore it (denial), but the bubble of the lifted area extended outside of my 1/16" safety zone I left in the finish to go under the bridge, so now it's screwed up entirely, in my opinion. I suppose I could build a larger bridge to cover it, but my fear is this will only get worse. Of all the things I could have done wrong to cause an adhesion problem I come back to these two:
Any opinions there?
- should have used Behlen's own thinner/reducer instead of the Crown Lacquer thinner I bought at a local Woodcraft store.
- because I thinned the Behlen vinyl sealer, I should have shot more than one coat.
Any opinions there?