Russian birch ply blotchy lines

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Old 12-22-19, 03:09 PM
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Russian birch ply blotchy lines

Used sanding sealer and two coats of gel stain.

I’ve read lacquer toner can help even things out but can I get these out?
 
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Old 12-22-19, 03:26 PM
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Those lines are usually from not sanding the plywood prior to staining it.
 
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Old 12-22-19, 08:10 PM
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It was sanded twice. Can it be sanded down and re coated with gel coat.
 
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Old 12-22-19, 08:23 PM
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If it was sanded twice I doubt 3x will make a difference. It must be an inferior grade of plywood. Just like any lumber you really have to have an eye for what you are picking out... not every sheet will be of the same quality.

Perhaps those lines are from the ply gluing process. You can only sand veneer so much before you sand right through it. Once you sand through it you're screwed.
 
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Old 12-22-19, 08:59 PM
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I think my friend went over it with 180.

I went over it with 320 before putting the sanding sealer on.
 
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Old 12-22-19, 09:08 PM
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Well that probably didnt do much more than polish it. So I take back what I said about sanding it a 3rd time. That fine of a grit certainly wont take out any snipe. I would probably have given it a good once over with an orbital and 120, then 150 at the most.

You wont get any of that snipe out unless you sand it with 120, which will probably take off all your sealer and stain. Also sanding sealer is best applied AFTER the stain, unless you are cutting it 50:50 with thinner and your intent is to use it as a wood conditioner to prevent blotching.
 
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Old 12-22-19, 09:30 PM
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From what I read from other folks, the sanding sealer helped the ply evenly absorb the gel stain as often RB is really blotchy.

I’ll start with 120 and up to 150 and see how it goes.
 
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