Will 2 part bleach (e.g. Zinsser) remove or reduce tannins from red oak as I want to paint or glaze with a light colored (beige) paint ? I suppose could do shellac under , but I am god-awful at brushing it. Thank you for your help…
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I could be wrong, but i think tannin (tanic acid) and color are two different things. The two part bleach should remove the small amount of color from the wood and then have no or little effect on the paint color. Just be sure to follow the directions and neutralize the bleach before painting.
I don't know what the liklyhood of a reaction between tanic acid and bleach might be. Might be worth checking.
I think if I was doing it I wouldn't bother with the bleach. I would just use a good primer and perhaps have it tinted to match or nearly match the paint color. I might not even do that as the natural color of red oak is kind of a light beige anyway. Experiment with it.
Thank you ! I read that oxalic acid will remove tannins from wood, so I was wondering about the two part bleach. I was trying to avoid tannin bleed through as I want to use a lighter color stain or glaze.
As I kind of want to see the wood grain, was hoping to do a stain or glaze or a thinned out paint. Most primers are too opaque I think?
If you use a clear film finish, start with stain or dye and a coat of shellac. If you paint, start with a coat of a shellac based primer like BIN.
Thank you ! Just was trying to avoid shellac because of its ambering effect and because I have trouble brushing it without creating ridges. Again want to stain or glaze rather than paint so as not to obscure the grain too much.
Red oak does not have enough tanins to affect the finish.
Just apply your stain or dye and apply your film finish of choice. If you want to apply shellac you can use spray cans. They work well for one coat, but can get expensive if you are going to apply multiple coats. However, the shellac is not needed most of the time.