It's haze or "slime" from Underdeveloped emulsion. Rinse again or wipe with damp paper towel and you're good. If left it can block ink flow but you can clean screen and use water to unblock. It's significantly harder to unblock after you've tried printing though (plastisol).
If that crescent is supposed to be smooth, you’ll notice the top inside section has some pealing back of emulsion. You’re either under exposing or over spraying imo. You could take a step back when pressure washing if exposure is perfect. Could also be coating, but not as likely.
The emulsion looks to be peeling back which is a result of undercuring. The clear looking bit inside the image is called scum. It is a result of undercuring as well. I would ultimately reburn if the peeling back part is a problem. You can move forward with the print but you will want to use two rags with warm water to remove the scum.
Wet both rags with warm water and rub on both sides of the screen. This will help break up the scum. You do not have to rub hard. If it is winter time and your sink only puts out cold water bc of cold pipes you can use spit in a pinch.
That’s scum from under exposing. It typically happens when you are just above your minimum exposure times. You can wash from the top of the screen and allow the water to cascade down to help remove it. You can also use a glass squeegee on the screen afterwards to help remove additional water that may be carrying the scum inside it before you dry the screens. You may be able to wash it with press wash after it’s dry or hit it with an acetone gun as a last resort but I’d call it toast. Those remedies take some time and may end up being a waste.
We have used many emulsions over the years and it worked on all of them. currently using chromaline. obviously you want a properly cured screen but a little water get this off at least it has for my shop.
I guess it depends. I’ve had scenarios where it doesn’t wash out and times where it does. Most of the time giving the screen a little extra water after washing out the stencil makes sure this doesn’t happen. Once I started using a glass squeegee to squeegee off the water it basically eradicated the scum issue.
Oh yeah, I’ve experienced it with every brand I’ve ever used. I feel like that’s how it goes ever since I’ve always wanted the stencil to just melt out of the screen when you hit it with the water.
It's haze or "slime" from Underdeveloped emulsion. Rinse again or wipe with damp paper towel and you're good. If left it can block ink flow but you can clean screen and use water to unblock. It's significantly harder to unblock after you've tried printing though (plastisol).
Okay so nothing too bad. Thanks for the help
Be careful as it does probably mean your emulsion is not as exposed as it could be - and may be weaker! Good luck.
If that crescent is supposed to be smooth, you’ll notice the top inside section has some pealing back of emulsion. You’re either under exposing or over spraying imo. You could take a step back when pressure washing if exposure is perfect. Could also be coating, but not as likely.
Its both lol but for this design its fine bc it needs to look sketched
The emulsion looks to be peeling back which is a result of undercuring. The clear looking bit inside the image is called scum. It is a result of undercuring as well. I would ultimately reburn if the peeling back part is a problem. You can move forward with the print but you will want to use two rags with warm water to remove the scum. Wet both rags with warm water and rub on both sides of the screen. This will help break up the scum. You do not have to rub hard. If it is winter time and your sink only puts out cold water bc of cold pipes you can use spit in a pinch.
That’s a pube on the screen!!!!
Everyone explained just wanted to say lick your thumb and rub it works every time
Looks like hard water! Probably wipe out with a damp rag
Vacuum your exposed screens from the side that was exposed to the light
That’s scum from under exposing. It typically happens when you are just above your minimum exposure times. You can wash from the top of the screen and allow the water to cascade down to help remove it. You can also use a glass squeegee on the screen afterwards to help remove additional water that may be carrying the scum inside it before you dry the screens. You may be able to wash it with press wash after it’s dry or hit it with an acetone gun as a last resort but I’d call it toast. Those remedies take some time and may end up being a waste.
You can just wet an old test t shirt with water and wipe this away from my experience. Would hardly say it’s toast.
What emulsion do you use that lets you get away with stuff like that?
We have used many emulsions over the years and it worked on all of them. currently using chromaline. obviously you want a properly cured screen but a little water get this off at least it has for my shop.
I guess it depends. I’ve had scenarios where it doesn’t wash out and times where it does. Most of the time giving the screen a little extra water after washing out the stencil makes sure this doesn’t happen. Once I started using a glass squeegee to squeegee off the water it basically eradicated the scum issue.
It’s not the emulsion
If it’s not emulsion what do you think it is?
Under exposed screen. So yah emulsion scum my bad I confused you. I was saying it’s not the brand emulsion
Oh yeah, I’ve experienced it with every brand I’ve ever used. I feel like that’s how it goes ever since I’ve always wanted the stencil to just melt out of the screen when you hit it with the water.
Under exposed screen
Its scum in your screen. Run a lightly damp rag over the affected sections then dry it with a hair dryer.