can i ask some questions..
i have here a 500Watts halogen lights ang the size of my screen is 14"x18" and the mesh size is 110.
how to know the time of exposure and the distance between the screen and the light...

Thanks a lot Catspit....

I may have answered this elsewhere but this is what I normally say:

Unfortunately, I am unfamiliar with the characteristics of the emulsion you are using and what you are doing. But even if I were, I couldn’t really give you any exact advice. There are too many variables involved that may affect your process that I cannot anticipate from here. Your film positives, emulsion thickness and light source will also affect your screen making procedures. Check out this video for tips on washing out screens:

http://www.youtube.com/watch?v=tRIFnYUucr0

http://www.youtube.com/watch?v=KM9uxI2bkPQ

Film positive tips:

http://www.youtube.com/watch?v=N6es7fC_CKw

Check out these articles to learn more about emulsions:

http://www.catspitproductionsllc.com/st ... mance.html

http://www.catspitproductionsllc.com/emulsiontips.html

http://www.catspitproductionsllc.com/li ... sions.html

http://www.catspitproductionsllc.com/em ... gtips.html

http://howtoscreenprintshirts.com/2010/ ... ual-cures/

But I could say maybe with a brand new 500 watt work lamp with the glass removed it may take 6 to 12 minutes or more for a dual cure emulsion and maybe 3 to 5 minutes or more for a photopolymer. But again this can vary greatly with the emulsion. Good luck and feel free to ask questions anytime!

what about the distance between the light and the screen?
i use 11mins.. not bad.

Oh yes, sorry I missed that. It’s hard to say maybe 18 to 24 inches. You want it to be as close as possible without getting the emulsion too hot during exposure. That will harden it all over. The basic Catspit unit I sell like that is about 20 inches tall without the screen in place. Then it has a riser to raise it higher some if necessary.

thanks a lot sir...actually, i used 18 inches in 12 mins of burning and that's what i want to confirm to you if what i did is right..
now, i would like to ask 1 more question.
since i am a beginner, i would like to ask, what is the good software to use in separating the color in multicolored printing or in CMYK printing
because i've tried to use PHOTOSHOP in separating the color but the output is not really good. is thier any factor that affect the output?

You're very welcome.

Yes, you’ll want to use something like Illustrator with RIP software. This video could help out some.

http://www.youtube.com/watch?v=QGp8v3Yv3zA

in catspit printing, what did they use in separating color..?
can you provide me a video in separating color in illustrator?
Plssss sir. plsss.. i want to learn how do they do that process.

I use Illustrator for everything. But yes. I will get to this eventually. Please stay tuned. Make sure to subscribe to my YouTube channel so you don’t miss out on any new videos

http://www.youtube.com/user/CatspitProductions