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Seal coat

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Forum topic by dschlic1 posted 10-05-2019 11:28 PM 482 views 0 times favorited 3 replies Add to Favorites Watch
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dschlic1

515 posts in 3259 days


10-05-2019 11:28 PM

Topic tags/keywords: question finishing

I am building an oak table. In order to match the coloring of the chairs we will be using, I had to mix and use a custom dye color. I used Keda Dyes, dissolved in water. I will need to spray a seal coat on top of the dye and was wondering if a clear shellac will work. The reason I am asking is that the powder dyes are soluble in both water and alcohol.

The dyes I am using.


3 replies so far

View CaptainKlutz's profile

CaptainKlutz

5032 posts in 2783 days


#1 posted 10-06-2019 10:51 AM

Yes, using a dewaxed shellac will seal the dye into wood, and prevent bleed out into top coat.
Note:
When you spray on the top coat, dye has much lower tendency to bleed out dye color – even WB top coat on WB dye. Just keep the 1st coat of clear finish ‘light’ to avoid runs/drips, and do not use a brush to fix anything. The brush can/will cause color drag/bleed out. Once 1st coat dries, the color will be locked into place regardless of whether Shellac or some other WB poly/lacquer.

Always test on scraps to figure out finishing schedule!

-- If it wasn't for bad luck, I wouldn't have no luck at all, Doom, despair, agony on me… - Albert King - Born Under a Bad Sign released 1967

View Fred Hargis's profile

Fred Hargis

7301 posts in 3782 days


#2 posted 10-06-2019 10:52 AM

Yes it will, as long as you spray it. How do you intend to deal with the grain raising? My approach would be to wait for the shellac to dry and then smooth it out. Other go through a pre-raising procedure, involving wetting the surface, let it dry and sand it back.

-- Our village hasn't lost it's idiot, he was elected to congress.

View OSU55's profile

OSU55

2904 posts in 3278 days


#3 posted 10-06-2019 01:13 PM

Depends on the topcoat solvent whether you need a sealer. Dewaxed shellac will work. Did the dye color the oak pores?

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