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Private member DiscussionAcoustic Builds

Pore fillers

What kind of pore filler do you use? I usually use aqua coat, shellac/pumice or stewmac water based mahogany grain filler. Interested in other methods, including zpoxy.

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I have similar thoughts to what you shared. On mahogany, aqua coat looks great. Unfortunately it left white residue in pores when I tried it on walnut. Now I’m curious about gluboost, thanks for the t…
Private member DiscussionFinish New Builds

Black Grain Filler Under EM6000?

I am switching from NC lacquer to EM6000. I also want to switch from black WB filler to blackened epoxy grain fill. My question relates to keeping the color in the pores and off the surface wood, and whether to vinyl seal before and/or after epoxy fill, I already know how to tint epoxy black. Could black grain fill style be accomplished with black epoxy as the grain filler and would a vinyl sealer be used at all, or just use EM6000 for…

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Karl - Funny you should mention it… my shellac order is out for delivery today. And thanks for the finishing schedule. In this most recent build, I find myself developing strategies that will avoid st…
Private member DiscussionAcoustic Builds

Aqua Coat

Has anyone used the aqua coat pore filler? If so are there any issues I would need to know about. I'm planning to fill natural walnut (no stain). Should I use a sealer first?

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When using zpoxy do you use a sanding sealer or is that not needed?
Private member DiscussionFinish Repair

70’s guild touch up

I have this 1970’s guild that had the finish burned from the cradle of a guitar stand. I am having issues with the border of the repair darkening. I sanded back the damaged area and the surrounding finish which was gummy. I used water based pore filler as a starter, a few sealer coats, and then clear coats (one of the coats with some dyes). Any suggestions at how to get this looking better?

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Hey Al! This is a guitar I traded for a while back to practice on so I have no time constraint or expectations. I do not think I’m ready to take something on like this for customers yet! I can see get…
Private member DiscussionFinish Repair

What causes these pits?

Hey All I am finishing a ukulele and I am getting all these weird pits. I was able to drop fill a lot of them but most of them do not want to stay filled and it is driving me mad! Anyone have an idea as to what may be causing these little pits? I used StewMac's dry power pore filler and their lacquer. I'm about to strip it and start over because at this point I've been chasing my tail so much I'm going crossed eyed. Thoughts?

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Yeah it's just the physical properties of the wood. Some more porous woods might need a second pass at pore filling or a sanding sealer after pore filling, before applying lacquer. I've even used vi…
Private member DiscussionFinish Repair

Making oil based pore filler

Folks, I’m trying to make some homemade oil based pore filler to go underneath a 50s style nitro finish. I know pumice is one ingredient but don’t recall the rest of this recipe. Does anyone here have experience with this? Thanks!

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Ian Davlin
The recipe I used for Ding Kings was Tru Oil and 4F pumice. A dear friend of mine told me that perhaps whiting powder might give a more similar result in consistency to the store bought stuff.