So the squire is kinda funny because those cracks look like cracks you would typically find in nitro finishes, but I doubt Squire ever used nitro finished anything and it’s likely polyester. In either case I would probably just leave it if it’s cosmetic and not structurally damaged,
The Kramer is likely polyester or polyurethane. I honestly wouldn’t even bother, but if you really want to, for that I would just use ultra ultra thin super glue and slowly build it up. Then you would take razor blade, dull or tape off the the parts you don’t need (hint you don’t need a lot of the exposed blade) and scrape down anything that has built up over the finish. You have to be careful here. Once you get it down enough, it’s micro mesh time. After that, to give it a final finish you would use a buffing wheel and a fine cut polish cream.
Unless you have the tools I honest wouldn’t bother, and just enjoy them for what they are. You will get more milage from cleaning them up and making sure the neck and frets are in good shape.
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You ever seen this stuff?
Yeah, what about it?
Have you ever used it, you think it might be decent enough to fill gaps?
I sold the strat, The kramer I dont think i’ll be able to part with, The hair crack in the headstock has a dark oxidation to it, even if filled it’ll always be dark, gota be some chemical I can dab over it to lighten it up, then fill it
That more of a hand finish/conditioner like gunstock oil. That’s probably pretty good to use on a bare maple neck.
I don’t think I would use that to fill cracks, especially deep ones on a guitar with a poly finish.
Unless it’s lacquer, pretty much anything you do has a solid chance of making it look worse.
The discoloration in the crack on the Kramer looks like it could be dirt stuck in there. You might be able to clean it up a bit. Isopropyl alcohol or mineral spirits and a toothbrush.
Tru Oil is a gun stock finish. It’ll change the color….and not a damn thing you can do once it does short of refinishing.
For my money - clean it up and probably use some quality cyanoacrylate (superglue) to fill the crack. Then wet sand depending on how that looks.
Realistically, I’d probably leave it alone.
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