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Old 06-29-2020, 05:29 PM   #1
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How to turn Flat paint into Semi-gloss?


Are ya' ready for this?. . .
What can I add to some Flat water-based paint, to make it Semi-gloss, or even Gloss?
Thanks, people.
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Old 06-29-2020, 09:33 PM   #2
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Re: How to turn Flat paint into Semi-gloss?


Not a gosh darn thing.

For example, in polyurethane, they take gloss poly and then add flattening agents to decrease the gloss.

They do something similar in flat paint. In a very simplistic way to describe it.

So, in other words, you wouldn't add anything to your paint, you would actually remove the flattening agents. That is if you could.
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Old 06-29-2020, 09:46 PM   #3
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Re: How to turn Flat paint into Semi-gloss?


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Originally Posted by Brass2312 View Post
Are ya' ready for this?. . .
What can I add to some Flat water-based paint, to make it Semi-gloss, or even Gloss?
Thanks, people.
Brass2312
Take some high gloss paint of the same type and color, mix it with the flat, and you will get something approaching semigloss.
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Old 06-30-2020, 12:20 AM   #4
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Re: How to turn Flat paint into Semi-gloss?


First you dump the flat paint out. Then you refill the can with semigloss or gloss paint. Problem solved.
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Old 06-30-2020, 05:17 AM   #5
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Re: How to turn Flat paint into Semi-gloss?


I've intermixed different paints a lot over the yrs and found that it doesn't take a lot of flat to lessen the the sheen of the paint. You'd think that half flat and half gloss would give you semi-gloss but that mixture would be closer to satin.
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Old 06-30-2020, 06:21 AM   #6
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Re: How to turn Flat paint into Semi-gloss?


Nothing really. You could increase the sheen by adding some acrylic resin, BUT the more you do that without adding pigment and/or flatting agents, the more transparent it becomes. It also would become thicker and need more water to be spreadable, thus diminishing hide even further.

There is a reason top shelf SG costs more than top shelf flat, it takes MORE resin AND higher quality pigment to get both sheen and hide.
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Old 06-30-2020, 06:39 AM   #7
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Re: How to turn Flat paint into Semi-gloss?


Buy a can of semi-gloss. Use the flat for the first coat, and then the semi-gloss for the second coat. But make sure you get good coverage with the second coat, or you will be doing a third coat just to get an even surface.
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Old 06-30-2020, 09:07 AM   #8
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Re: How to turn Flat paint into Semi-gloss?


Gloss to flat, a one way street.
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Old 06-30-2020, 09:46 AM   #9
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Re: How to turn Flat paint into Semi-gloss?


You can't make it gloss. To make it semi-gloss, you'd need to add so much gloss paint that it really wouldn't be worth it. Sounds like you're trying to save a few bucks which is nice but there's no useful way to do that.
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Old Yesterday, 05:02 PM   #10
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Re: How to turn Flat paint into Semi-gloss?


Thanks very much for the replies, people.

KTownSkier: I Really like your signature line about "The only stupid question is the one you DON'T ask!"
Seems like this was already a fairly Stupid question. But, I asked anyway. Ah, well.

XSleeper: Dam, THAT's Brilliant! WHY didn't I think of it?!

JeffNC: Yup, I was being the cheap bastard that I am. Sounds like it can't really be done.

OK, Thanks, anyway, people.
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