posted
May have goofed, sealed around screen with latex based sealant, will solvent based inks react with this?? Which caulking is reccommended for this?
edit because I forget to check off 'email notification'
I use wooden frames and I like to seal the edges around the inside of the frame. When I'm using fabric inks I can use scrap vinyl, but when I use solvent based inks I usually use silicone based sealant (caulking. This time I goofed and used a latex sealant, I'm wondering if it'll break down with the solvent inks.
-------------------- Mike O'Neill
It has yet to be proven that intelligence has any survival value. - Arthur C. Clarke
posted
Hiya Mike, I have limited experience with screen printing so don't take this as the golden rule, but, in the past, we never bothered sealing the screen edges. After the screen was burned, we just used application tape to seal the edges of the screen and Never had a problem. It also made clean-up a lot easier. So, I would assume that if you put application tape down as a barrier between the ink and the sealer, you shouldn't have a problem.
Havin' fun,
Checkers
-------------------- a.k.a. Brian Born www.CheckersCustom.com Harrisburg, Pa Work Smart, Play Hard Posts: 3775 | From: Harrisburg, Pa. U.S.A. | Registered: Nov 1998
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posted
Hey Mike, I would suggest that you use a screen tape that is made just for this use. It is a solvent based tape that is very resistance to solvent breakdown. For years I used the paper tape that you would use for packing to seal the inside of my screens. Very messy during the reclaim process. I came across the tape by the name....polyken that I have used ever since. I use it to line the inside for an ink well and also the outside for a mesh protector. I use roller frames in which the mesh is exposed on the outer part of the frame. I think that R-Tape makes a product just for this use.
Hope his helps....
Steve Simpson
-------------------- Steve Simpson Applical Decal Company 10017 Hill Road Knoxville, Tn 37938 Posts: 40 | From: knoxville,tn | Registered: Sep 2002
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posted
Mike use 2" 3m masking tape, to tape from the edge of the screen to the film, then I run some scotch tape along the edge of that tape, squeege it down nice and tight. It has worked for me over the years when I used to do lots of screen printing. Do you use water sol block out to fill up the excess areas?
-------------------- "Keep Positive"
SIGNS1st. Neil Butler Paradise, NF Posts: 6277 | From: St. John's NF Canada | Registered: Mar 1999
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I use emulsion (painted on) to block out excess areas, edges & so, I just painted emulsion over the latex sealant ... problem solved.
Thanks for reminder, I used to use masking tape and had never a problem , but then I got into the habit of using scrap vinyl, guess cause it's always on hand (or underfoot), but I was using water based inks for fabric and never had a problem... I sorta forgot about using masking tape. During the last run I did with solvent based ink on friday, the inks were breaking down the vinyl, we made it through the run alright, but barely.
-------------------- Mike O'Neill
It has yet to be proven that intelligence has any survival value. - Arthur C. Clarke
posted
We use the Polyken tape too ... AWT makes it too. Anytime I have to pull a squeegee I line all the sides with vinyl application tape ... scrape excess ink out, peel tape, screen is half clean ... I hate cleaning the corners and frames. I buy 6" tape just for this use.
-------------------- Compulsive, Neurotic, Anti-social and Paranoid ... but basically Happy Posts: 2677 | From: Rochester, NY, USA | Registered: Nov 1998
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2" Scotch tape works great on the inside of the screen, but for for longer runs, run four pieces of clear packing tape around the edge on the bottom of the screen. Water based blockout can sometimes break down in areas where there's no emulsion, especially on longer runs. The clear tape also wont effcet your off contact as much as crepe masking tape will. Should any of the ink get under your tape and find it's way out along the frame,an ocassional glance at the botom can avoid a bigger mess later. Ask me how I know this...
Just an old memory resurfacing... Rapid
(edited to avoid becoming famous for typos...sheesh )
[ October 08, 2003, 09:57 PM: Message edited by: Ray Rheaume ]
-------------------- Ray Rheaume Rapidfire Design 543 Brushwood Road North Haverhill, NH 03774 rapidfiredesign@hotmail.com 603-787-6803
I like my paint shaken, not stirred. Posts: 5648 | From: North Haverhill, New Hampshire | Registered: Apr 2003
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posted
Mike, when using solvent based inks or enamels, water bases like latex will work fine, its a oil & water don't mix situation, the water base works as a chemical dam, the only problem you'ld run into is if you were to tear open a section of the latex that you'ld experience paint leaking through. Tape does work well, until the solvent attacks the adhesive, then that can be a problem.
Good Luck
-------------------- Ron Percell Percell Signs 707-769-0639 Petaluma, California
posted
Mike...We have used everything from shellac (which works really well) to epoxies (which get brittle an make the screens fail) to silicone (which works well for most inks)but fails when you least want it to.
We now use (and have for about 10 years) a product you can get at any Ace hardware..Lowes...Home Depot...
It's a crystal clear 2" tape made by the Henkel Adhesives, Inc. Avon Ohio and is sold under the brand name "Duck" tapes and labled as "HIGH PERFORMANCE" it is really just a high grade packing tape but applied to both sides of the mesh and carefully folded to seal from the mesh to the frame (all the way around) it holds up for years...and is impervious to all brands of inks we have used (we've used them all).
This and the use of Ulano DLX Direct emulsion is a perfect marriage of products...
This tape will not even break dowwn after hundreds of washings with a power washer to remove the stencils (even with the harshest cleaners)Yet it is easily removed even after it's been on for long terms
And the ink cleans out like a dream (no residue) even when using lacquer thinner.
If you cant' find this product try their web site ...www.duckproducts.com
Try this enexpensive perfect solution to your problems..."Werks fer us it'll werk fer you"
-------------------- "Werks fer me...it'll werk fer you"
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