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screen printing => Screen Making => Topic started by: noortrd on December 21, 2015, 11:36:56 AM
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We search internet and found that acetone as reducer of POLYVINYL ACETATE. Can we use acetone to reduce PVA PHOTO EMUSLION?
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Probably should not use acetone in emulsion. I would recommend plain water. Stir like crazy, then let it sit long enough for the bubbles to leave. God Bless.
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Probably should not use acetone in emulsion. I would recommend plain water. Stir like crazy, then let it sit long enough for the bubbles to leave. God Bless.
What he said!
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Emulsion is very similar to white glue, and I would sure as heck not think about acetone as the ideal reducer for that, and white glue doesn't even have the additional photosensitive chemicals that could also be affected.
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Just goes to show you can't believe everything you read on the internet :o, now I see maybe using it to thin house paint, but I've always used acetone for a cleaner since it dries very fast.
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HUH?! Not everything on the internet is true and correct?
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I feel very BAH HUMBUG NOW!!!!!
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It may not even be incorrect that is can indeed, as a solvent, reduce PVA. It just seems like a poor choice in this instance.
Reminds me a bit of an old product, a rapid dry greenish blockout from, I think, Southwestern, that had Methylene Chloride as a solvent, and dried so fast that if applied in different amounts to different screens, could knock tight register jobs off.
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HUH?! Not everything on the internet is true and correct?
I thought so too until I saw a post from a guy named Abraham Lincoln stating that it wasn't so...
Steve
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I was wondering why someone would want emulsion reduced?
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I was wondering why someone would want emulsion reduced?
It may be related to this earlier thread of his
http://www.theshirtboard.com/index.php/topic,16614.0.html (http://www.theshirtboard.com/index.php/topic,16614.0.html)
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I would think acetone would be too harsh, breakdown of base chems kinda thing, In acrylics reducer is used but a splash of acetone will make it lay better (less orangepeel) So possibly its not so out of line to think a capful might just get the reduction your looking for. (**Test however, I'm so NOT responsible for mishaps)
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Thin with water. The rest of the components need to stay in balance.
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Listen to Alan
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One might think that, by the book this way or the highway, they taught me that in school... But temp/humidity can be a game changer as far as what the can says, Alcohol is used as a thinner in waterborne Airbrush paint, and most likely a bit wouldn't change the balance, but offer better flow, especially with older product under certain conditions (Again disclaimer, Test first, I am not a responsible person). ::)
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Hmmm, manufacturer says you can thin with water, stick with that for my emulsion please.
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Hmmm, manufacturer says you can thin with water, stick with that for my emulsion please.
From a chemistry standpoint however alcohol readily mixes with water, has absorbsion properties, and evaporates more quickly than water. So I could see it could be utilized to ones advantage under certain conditions.
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Wow
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Hmmm, manufacturer says you can thin with water, stick with that for my emulsion please.
From a chemistry standpoint however alcohol readily mixes with water, has absorbsion properties, and evaporates more quickly than water. So I could see it could be utilized to ones advantage under certain conditions.
Many in this industry utilize the various properties of alcohol on a regular basis.