DigitSmith

help with vastex exposure unit

Reply
 
Thread Tools Search this Thread
Old September 8th, 2011, 05:28 PM   #1 (permalink)
djmp360 djmp360 is offline
Junior Member
Join Date:
Jun 2011
Posts:
8
Liked:
0 times
Default help with vastex exposure unit

I am new at screen printing and i am having alot of trouble exposing screens using the vastex e2331 unit with the Ulano QLT emulsion. No matter what i do it seems to be over exposed and hard to wash the stencil out. Can someone please help.
Send a private message to djmp360 ContactReply & Quote
Old September 8th, 2011, 06:26 PM   #2 (permalink)
sben763 sben763 is offline
Member
Join Date:
Nov 2010
Posts:
47
Liked:
0 times
Default Re: help with vastex exposure unit

What mesh. 100 Should be 60-75 sec with your exposure unit. 156. 45sec. 305. 20-35

Were you exposing longer?
Send a private message to sben763 ContactReply & Quote
Old September 8th, 2011, 06:48 PM   #3 (permalink)
djmp360 djmp360 is offline
Junior Member
Join Date:
Jun 2011
Posts:
8
Liked:
0 times
Default Re: help with vastex exposure unit

Yes the tech support guy from vastex told me 2-6 min!!! He said he was burning a screen right this second on the same unit, that did not work for me.
Send a private message to djmp360 ContactReply & Quote
Old September 8th, 2011, 06:56 PM   #4 (permalink)
sben763 sben763 is offline
Member
Join Date:
Nov 2010
Posts:
47
Liked:
0 times
Default Re: help with vastex exposure unit

You are way over exposing. These times are from ulano using a 40w exposure. You may have to step test to find your best result. I personally use the s.e.x emulsion from performacescreensuppies. Or hifi from silkscreen supplies and have similar exposure times on my exposure unit as the ulano
Send a private message to sben763 ContactReply & Quote
Old September 8th, 2011, 06:57 PM   #5 (permalink)
djmp360 djmp360 is offline
Junior Member
Join Date:
Jun 2011
Posts:
8
Liked:
0 times
Default Re: help with vastex exposure unit

OH yea you asked what mesh i used. Im using 110 mesh.
Send a private message to djmp360 ContactReply & Quote
Old September 8th, 2011, 06:58 PM   #6 (permalink)
sben763 sben763 is offline
Member
Join Date:
Nov 2010
Posts:
47
Liked:
0 times
Default Re: help with vastex exposure unit

Try 70-80 secs if your bulbs are new

2-6 min is for dual cure like cci diazo.
Send a private message to sben763 ContactReply & Quote
Old September 8th, 2011, 06:58 PM   #7 (permalink)
djmp360 djmp360 is offline
Junior Member
Join Date:
Jun 2011
Posts:
8
Liked:
0 times
Default Re: help with vastex exposure unit

Thanks alot for your help, im going to burn a screen right now.
Send a private message to djmp360 ContactReply & Quote
Old September 8th, 2011, 07:00 PM   #8 (permalink)
sben763 sben763 is offline
Member
Join Date:
Nov 2010
Posts:
47
Liked:
0 times
Default Re: help with vastex exposure unit

Report your results please
Send a private message to sben763 ContactReply & Quote
Old September 8th, 2011, 07:43 PM   #9 (permalink)
Binkspot Binkspot is offline
Senior Member

Binkspot's Avatar
Join Date:
Jan 2010
Location:
Delaware
Posts:
170
Liked:
38 times
Default Re: help with vastex exposure unit

Get an exposure calculator and follow the directions. It will take the guess work out of exposing your screens. Use it to check the exposure time every so often or when you notice a change in how the screens blow out. It also pays to wet the screen and let it set for a min or two then wash the image out.
__________________
Owner/Operator of Middletownink
Send a private message to Binkspot ContactReply & Quote
Old September 8th, 2011, 08:22 PM   #10 (permalink)
djmp360 djmp360 is offline
Junior Member
Join Date:
Jun 2011
Posts:
8
Liked:
0 times
Default Re: help with vastex exposure unit

Thanks for the advice!!! will do.
Send a private message to djmp360 ContactReply & Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Vastex DB-30 Dryer/ E-1000 exposure unit for sale dgsp7 Old Screen Printing Ads 10 June 11th, 2011 01:23 AM
FS - Vastex Exposure Unit (Vacuum Exposure system - 120volt) (Los Angeles) bennybasics Old Screen Printing Ads 0 August 24th, 2009 02:40 AM
Vastex Exposure Unit 30X36 ScreenWashing Station graphics Old Screen Printing Ads 0 May 19th, 2009 04:42 PM
Vastex E1000 EXPOSURE UNIT, New York jayson.oner Old Screen Printing Ads 0 November 13th, 2008 08:58 PM
Exposure unit: Vastex E-1000 For SALE jayson.oner Old Screen Printing Ads 0 February 6th, 2008 06:40 PM

All times are GMT -4. The time now is 10:25 PM.
Copyright © 2011 DigitSmith. All rights reserved.
Forums software by VBulletin, Copyright © 2000-2021, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.