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Shellac over oil paint

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Forum topic by jcn posted 07-26-2010 07:51 PM 5586 views 0 times favorited 10 replies Add to Favorites Watch
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jcn

37 posts in 2401 days


07-26-2010 07:51 PM

I know shellac has the reputation of being compatible with anything, but I’m cautious to apply it on top of some oil-based paint. I have a piece of poplar which has been painted with Sharpie oil-based paint pens. The designs are quite intricate, so any thinning at all will be destructive, and I’m wondering if the denatured alcohol in the shellac would damage the paint.

I’m planning to test anyway, but I’m just curious if anyone here has experience with something similar?

My ultimate goal is to build a nice thick clear finish, using a product that is easy to use. I’m pretty bad at finishes, so I like to seal/protect with shellac with wipe-on finish on top, like Minwax Wipe-On Poly. Just for the ease of use factor.


10 replies so far

View a1Jim's profile

a1Jim

115202 posts in 3042 days


#1 posted 07-26-2010 08:01 PM

I would say shellac is safe over most things . I believe sharpies are alcohol based but if sprayed on you should still be able to seal it up.

-- http://artisticwoodstudio.com Custom furniture

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jcn

37 posts in 2401 days


#2 posted 07-26-2010 08:55 PM

Thanks for the help!

These aren’t normal alcohol-based Sharpies, they’re another product using oil-based paint. I don’t know how long they’ve been on the market, I just saw them for the first time the other day.

http://www.sharpie.com/enUS/Product/Sharpie_Oil-Based_Paint_Marker_Medium.html

View hObOmOnk's profile

hObOmOnk

1381 posts in 3593 days


#3 posted 07-26-2010 09:21 PM

These products DO contain alcohol (ethanol).
Why would you NOT test before you attempt unsubstantiated advice?

-- 温故知新

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jcn

37 posts in 2401 days


#4 posted 07-26-2010 09:25 PM

Since I said in the first post I was going to test anyway, the real question is why would I ASK for advice before SPENDING MONEY on products someone might KNOW FOR A FACT won’t work. A question which answers itself, if you think it through.

thanks.

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hObOmOnk

1381 posts in 3593 days


#5 posted 07-26-2010 09:35 PM

Tested – alcohol will dissolve and smear this paint.

-- 温故知新

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a1Jim

115202 posts in 3042 days


#6 posted 07-27-2010 01:00 AM

Like you said do a test after the oil based sharpie drys on separate test board. But I’m sure it will seal it . Shellac seal oil base stains so that you can put any other finish on top of it.

-- http://artisticwoodstudio.com Custom furniture

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hObOmOnk

1381 posts in 3593 days


#7 posted 07-27-2010 04:10 AM

We’ve tested this product in our finishing products laboratory and alcohol can smear it.
It is an alcohol based product, despite the labeling.

MSDS

-- 温故知新

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hObOmOnk

1381 posts in 3593 days


#8 posted 07-27-2010 04:10 AM

We’ve tested this product in our finishing products laboratory and alcohol can smear it.
It is an alcohol based product, despite the labeling.

MSDS

-- 温故知新

View hObOmOnk's profile

hObOmOnk

1381 posts in 3593 days


#9 posted 07-27-2010 04:10 AM

We’ve tested this product in our finishing products laboratory and alcohol can smear it.
It is an alcohol based product, despite the labeling.

MSDS

-- 温故知新

View a1Jim's profile

a1Jim

115202 posts in 3042 days


#10 posted 07-27-2010 04:21 AM

Did you spray it On mixed with shellac?

-- http://artisticwoodstudio.com Custom furniture

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