Yes, you need to mix it all at once. Once mixed, keep in a cool place. I don't put mine in the fridge, some people do. It's good for about 3 months once mixed. You will notice when it's old, you cost the screens and the design does not come out great.
I felt like the pre mix stuff just wasn't hard enough.After using it on 40 shirts, Then cleaning my screen, I could see that some blue was in the water. That means to me it is breaking down.
The second run and after I cleaned the screen, I could see that some of the edges looked a little jagged.
Not that I know from comparison, because it is all I ever used. But I figured I would try something new, to see If there is a difference. I have a large order to fill next week. Do not want the issues I had the last time.
But who knows, Maybe I will have some new issues! lol
Just a heads up--anything with Diazo will take a lot more UV to properly expose than the photopolymer 'one pot' emulsions.
A dual cure emulsion (all things equal, properly exposed and developed) should have better resolution and solvent/water resistance than a PP, or pure diazo type of emulsion. There are conditions under which this wouldn't be true--which is why I say "should".
My only point was just because it will hold an image at a given time does not mean the stencil is properly exposed, and that if you're exposing a dual cure for less time than a photopolymer, it's likely you were either overexposing the PP, or severely underexposing the DC.
Don't get me wrong, if you get a stencil that holds details, holds up to the print run, and reclaims easily, you don't have any problems.
1 - 9 of 9 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
A forum community dedicated to T-shirt merchants, professionals and enthusiasts. Come join the discussion about graphics, commerce, dyes, prints, collections, guides, displays, styles, scales, equipment, accessories, reviews, classifieds, and more!