Mercury Vapour exposure unit:

**Tom** · 10-30-2009, 07:07 AM

Ive a chance to buy this exact one:

Anyone know what the exposure times are like with mercury vapour lamps?

Thanks,
Tom.

**steve w** · 10-30-2009, 07:09 AM

that's not for exposing screens

**Tom** · 10-30-2009, 07:10 AM

Yes it is.

**steve w** · 10-30-2009, 07:12 AM

buy it

**steve w** · 10-30-2009, 07:13 AM

exposure times for various light sources
can be obtained from your emulsion supplier

**Tom** · 10-30-2009, 07:16 AM

I rang the company that manufactures them. Its is for exposing & can do direct & indirect stencils. They say 12 - 15 mins exposure time but I think thats way too long for a machine that costs 2000 pound sterling new.

Has anyone any experience with mercury vapour lamps & if so whats your average exposure time for direct stencil?

Thanks.

**steve w** · 10-30-2009, 07:21 AM

it depends on your emulsion, tom.

**steve w** · 10-30-2009, 07:23 AM

Also, 20 x 30 is pretty damn small if you want to do posters.

**mikeage** · 10-30-2009, 07:26 AM

I miss steve.

**Tom** · 10-30-2009, 07:27 AM

Yip too small. Just measured my largest screens & they wont fit. Maybe diy metal halide is the best route. Thanks.

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