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Re: screen printing

Posted: 15 Nov 2009, 22:49
by Paul
Well. It look like i need to buy few more screens :)

Re: screen printing

Posted: 15 Nov 2009, 23:03
by John G
Try thinning your ink a little, if no good try a different squeegie and if still no joy go and get a 62T screen - give it a go. You might have a good screen supplier but I use Colenso for my screens (wood frames).

Cheers John

Re: screen printing

Posted: 15 Nov 2009, 23:32
by Paul
I use aluminium ones. Can you post some links to good supliers? What emulsion do you use and how long it takes to expose it? What price etc... :) i am realy looking forward to start ne hobby. Fantastic add on to sublimation.

Also we have members to members ofers so you ,ay want to post some discounts to dorum members. :)

Re: screen printing

Posted: 16 Nov 2009, 15:54
by John G
Hi Paul, Colenso do metal frames too but there's bound to be a screen stretcher near you which would save the delivery charges - try yellow pages.

I use colenso for squeegies, screens and emulsion "Fotecoat 1072"
Sericol for all my inks - there are other suppliers but you do get what you pay for!
Litho Supplies for latex gloves, scalpel blades/knives and MEK - a fast drying blanket wash normally used in litho printing but brillaint for cleaning a stencil which will be used again or squeegies.

Exposure time will vary depending on the darkness of possie, thickness of emulsion and the distance between light source and glass. My screens take 4.5 minutes but I have used exposure units that can do it inbetween 1 and 3 minutes.

Cheers John

Re: screen printing

Posted: 16 Nov 2009, 15:55
by Paul
also I forgot to ask you John what squeegee should I use? I own V shape but i know there is other shapes too.


thanx


Paul

Re: screen printing

Posted: 16 Nov 2009, 15:57
by Paul
John G wrote: My screens take 4.5 minutes but I have used exposure units that can do it inbetween 1 and 3 minutes.

lol. my expose time is about 25min under 1000w light :)

Re: screen printing

Posted: 16 Nov 2009, 16:28
by John G
Here's a link to colenso - if links are not allowed please delete:

http://www.colenso.co.uk/squeegee-blade.htm

I use the square type G1 but haven't ordered any blades for ages as I kind of had large stocks from previous employment. :lol:

25mins exposure - time to get a new bulb :D
John

Re: screen printing

Posted: 16 Nov 2009, 16:43
by Paul
bulb is brand new mate :) this is supplier i have my emulsion from: http://wickedprintingstuff.com/EMULSION/

so you say square one is beter then V shape?


i am lost now ;(

Re: screen printing

Posted: 16 Nov 2009, 16:54
by John G
I suppose its what you get used to - when I first started in printing all you could get were square squeegee's so that what I use. Stuck in my ways old F&rt. :lol:

Basically its all trial and error and practice makes perfect.

Re: screen printing

Posted: 16 Nov 2009, 17:02
by Paul
right :)
ok I will stick all that you said in to my head and I am going to print somethink on weekend.

I cant wait as I want to try print with out any off contact.