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-   -   Adding water to permaset supercover (https://www.t-shirtforums.com/water-based-ink-screen-printing/t666034.html)

Kenzes March 30th, 2016 03:46 PM

Adding water to permaset supercover
 
Hi Guys,
I've been printing with white Permaset Supercover and it dries out very quickly on screen and clog the design easily after print, even with flooding.

I'm wondering if its save to add some tiny amount of cold water to the ink so its less thicken. Please feel free to show some thoughts if you guys have any tips for printing with White Permaset Supercover. At the moment I print, flash, print.

Thank you,
Ken

jgabby March 30th, 2016 10:43 PM

Re: Adding water to permaset supercover
 
Yes you can, 5% no problem.

I would try retarder G 2-3%, and maybe you are not printing with the right mesh.

You can mist water every few prints

For supercover I use 120 mesh sometime 80 mesh.

Kenzes March 31st, 2016 08:49 AM

Re: Adding water to permaset supercover
 
Quote:

Originally Posted by jgabby (Post 3586362)
Yes you can, 5% no problem.

I would try retarder G 2-3%, and maybe you are not printing with the right mesh.

You can mist water every few prints

For supercover I use 120 mesh sometime 80 mesh.

Thank you so much for letting me know! I'll definitely try that, you are awesome. :)

NoXid March 31st, 2016 10:58 PM

Re: Adding water to permaset supercover
 
I print it through 200 mesh and don't really have drying problems, but Portland isn't exactly a dry place ...

Yes, add some water, and mist it as noted above. You may also try wiping the screen down with a damp cloth before loading in the ink. And when all done and putting the unused ink back in the bucket, give it a few more squirts of water. Ink is loosing moisture every moment it is out in the open.

You can get a <$10 humidistat at Home Depot, so you can see how humid/dry the air is. I sometimes make a point of washing out some screens before printing so as to increase the humidity in the shop. If you are in a dry climate, you may want a humidifier.

My main issue with SC white at this point is that sometimes it insists on climbing up the squeegee rather than rolling a nice bead when back flooding. Makes it a mess to work with. Never know how it is going to act one day to the next ... not sure what the variable at play is.

Kenzes April 1st, 2016 04:41 PM

Re: Adding water to permaset supercover
 
Quote:

Originally Posted by NoXid (Post 3588474)
I print it through 200 mesh and don't really have drying problems, but Portland isn't exactly a dry place ...

Yes, add some water, and mist it as noted above. You may also try wiping the screen down with a damp cloth before loading in the ink. And when all done and putting the unused ink back in the bucket, give it a few more squirts of water. Ink is loosing moisture every moment it is out in the open.

You can get a <$10 humidistat at Home Depot, so you can see how humid/dry the air is. I sometimes make a point of washing out some screens before printing so as to increase the humidity in the shop. If you are in a dry climate, you may want a humidifier.

My main issue with SC white at this point is that sometimes it insists on climbing up the squeegee rather than rolling a nice bead when back flooding. Makes it a mess to work with. Never know how it is going to act one day to the next ... not sure what the variable at play is.

That sounds like a really good technique to keep it thinner! I definitely should get the humidistat and keep spraying some water into bucket after each use but hey thank you so much for your time I really appreciate the help bud, this would save my life haha c :

tdunham April 12th, 2016 08:50 AM

Re: Adding water to permaset supercover
 
All of the advice given is good. We recommend an additional strategy that has proven very effective. Prior to inking your screen, spray a mixture of 50/50 retarder to water into the screen liberally. Use a rag or cloth to wipe it around evenly making sure to cover all exposed emulsion leaving a thin layer. Use the retarder that was picked up by the rag to wipe the back side of the stencil. Let that set a couple minutes, then ink your screen and start printing. This thin layer of retarder on the screen helps keep the emulsion and the channel lubricated and helps prevent the emulsion from drawing any moisture out of the ink. You will need to print a couple test prints to clear the retarder from the channel but you will get long lasting results. The other recommendation we have is make sure you are putting "a lot" of ink into the screen. We typically put a quart into a manual screen. With a larger pool of ink, it is easier to manage the hydration. Since all Permaset inks can go back into the container there is no waste. All to often we see people treat water base like plastisol and only put in what they think they will need. With water base you will have better results with a large pool.

Hope this helps.

sindhu g n April 12th, 2016 10:37 PM

Re: Adding water to permaset supercover
 
No problem if you add water to permaset supercover in small amount.

nudepuppy September 21st, 2016 06:16 AM

Re: Adding water to permaset supercover
 
Hey guys, been reading this thread. Back when I was regularly printing with Permaset SC I would add print base + water, kind of thinning down the white sc, may have taken that one extra pull but always found it to have great handle etc, as opposed to just adding water....


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