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Non-h2o block out

Posted on Mon, 2 Feb 2004 at 17:26



Glad to find this forum. I am not a screen printer, but I need to be as we are adding this element to our business. Hoping it will speed up some of our lines. Without making this to long. I am not able to do any photo emulsions on our screens as it is just to large an area. Our screens will have to be hand coated. We will be using acrylics so water is a problem. What is out there for emulsions that can be hand painted onto a screen that is not water sensitive? Is it possible to use any of the emulsions that are targeted for the photo end?

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Anonymous says: Melanie, I'm not perfectly clear on what you're trying to accomplish; however, I'll take a stab at two possibilities. 1. Photoemulsion - We manufacture a two-part, diazo emulsion called Image Mate DZ ...

Melanie,
I'm not perfectly clear on what you're trying to accomplish; however, I'll take a stab at two possibilities.

1. Photoemulsion - We manufacture a two-part, diazo emulsion called Image Mate DZ 343. This is a violet-colored emulsion, formulated to resist water-based inks after the image has been "burned" into the stencil and developed. Being a two-part system, you mix the sensitizer into the base polymer emulsion before coating onto the screen. A light source, even the sun, needs to cure the coating; afterwards, a stencil remover solution can remove the stencil, reclaiming the screen.

2. Titebond III - We also manufacture the Titebond line of wood glues. This is a tan-colored, waterproof glue which does not require light exposure, but rather only needs to dry completely for curing. This could be painted on with a brush and allowed to air dry for a water-resistant stencil. However, the screen is non-reclaimable.

Both of these products can be found on our web sites:
www.image-mate.com
www.titebond.com

Marty Medvetz
Technical Manager
Screen Graphics Div.
Franklin International

posted on: Tue, 05/11/2004 - 9:56am
Anonymous says: There is a laquer based block-out out there. You should have contacted screen material suppliers first. posted on: Thu, 07/22/2004 - 7:28pm

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