Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
The source is the waterproof coating on the film, the fix is in your powder bottle.mooseman
Can you explain the "fix is in your powder bottle"?
We have the same problem with Chromablue and Saati PHW Red, AC'd dark room with dehumidifier, 35% humidity or lower. Baby powder is the only remedy besides changing emulsion. The PC-701 I sampled a few weeks ago did not have much post exposure tack, it certainly didn't take the ink off the film positive. I'm trying to remember if Kiwo One Coat did this and I think it did. Pretty much all the higher solids content emulsions/pure photopolymer we've used have been notorious for this problem, except the PC-701. Dual cures don't have this problem at our shop.This recent talk about emulsion has made me rethink our current emulsion usage and I'm going back to testing out new emulsions. I think we all should do this with ALL of the products we use every year or two. There is always something better around the corner or a product that you've never used that outperforms your current one, but if you're not open minded to trying new products then you'll be left in the dark and wasting time and money. There was a shop in my area that seriously didn't know more than two different ink manufacturers existed. Wilflex and Union were their only choices, and there is no telling what else they didn't know about emulsion and screen chemistry. I know most shops don't use these forums for information and rely on an outside sales rep or maybe the wind to keep them up to date on new products and techniques, and then I guess there are some that could give a damn about that because they finally found something that worked somewhat ok and just stuck with it.
Where do you baby powder yoru screens? We used to do it, and it made a mess in our dark room.
I just can't fathom how to dispense it into my coater, how in the world do people do that, with a pump?
Quote from: ericheartsu on May 06, 2012, 01:29:20 AMWhere do you baby powder yoru screens? We used to do it, and it made a mess in our dark room.we have a cabinet where we keep our exposure ready screens. When we select the screen we simply take it from the cabinet hit it with the powder spread it with our hand and place it directly onto the exposure glass.We do this in open light , yes fully open light with no filters or other precautions.mooseman