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Nitro Refinish Question

Not really that, the finish currently on the bass is a very good base coat for the new finish. Sanding it completely off is just a lot of unnecessary work.


Yea. I have zero desire to remove the finish on a brand new instrument. I guess I'm just not 100% certain how much to sand off. I would assume that nitro would not grip to the existing clear coat without sanding it off. Is this correct?
 
Yea. I have zero desire to remove the finish on a brand new instrument. I guess I'm just not 100% certain how much to sand off. I would assume that nitro would not grip to the existing clear coat without sanding it off. Is this correct?


Get some 320 grit sand paper and a sanding block. Then sand it until there are no shiny spots left. Wet sanding will extend the life of the sand paper.
 
I did a ReRanch rattle can refinish on my '71 Fender PBass and although it looks nice, the nitro primer didn't bond as well as I'd like to the poly undercoat - I let it harden for 3 months before I sanded it and as I was putting it back together, even though I was being super careful, I managed to take a chip out of the finish - the primer released over the poly.

A year and a half later (just a few days ago) I was changing strap locks and the gloss finish bonded with the felt washers and also pulled off the top coat down to the primer. New washers covered the spot but it was a bummer.

The early 70's poly coat is thick nasty stuff. I had it moderately roughed up so the primer could grip to it, and I was careful not to put on too much primer, but no luck. Next time it will be down to the bare wood.

That said, I did like the ReRanch products. I picked up some Sherwood Green Metallic to refinish my MandoBird. I think I'll even do a matching headstock :bassist: