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Private member DiscussionFinish Repair

Varnish Repair - Cracking/Flaking alon edges

I'll open by saying I know nothing about varnish finishes, yet. I've seen this Brentrup mandolin with a varnish finish that has extensive lifting/flaking around almost all edges. Is there a process/chemical for consolidating varnish finish like this? (beyond the brute force GluBoost wicking I might usually do) In any of the violin video sessions, has this type of finish repair been discussed?

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I knew Hans. At the time I met him (around 2016) he was spraying spirit varnish pre-made from International Violin. His mandolins ended up with slight checking a year or so later, but I had not see…