where can i source mercury vapour bulbs please?

[Nicola McIntosh]

hi harry 😀

i thought those were for the industrial cameras to shoot bromides as ive broken a few over the years, i cant see it exposing a screen, as it has to be uv 😀

nik

[Mike Grant]

Murcury vapour bulbs are similar to the old large floodlight bulbs and the surface looks a bit like a flys eye all dimpled. They get very hot and you need them set up at the correct distance for exposure. Not what i would call a quick fix job. They need about 5 mins to warm up to there correct temperature and brightness. We have an old Graphoscreen unit that uses this system. Do a google and see what it throws up.

It doesn’t only have to be UV Nic as I got one 😛 and absolutly nothing like halogens.

[Harry Cleary]

Ok thanks Nik and Mike, Im really ticked off now as the people I bought the emulsion off never mentioned that I would need a specialist bulb, do you know where I can get a bulb, and will i need a special fitting, or will an ordinary one work?
thanks

[Nicola McIntosh]

hope yer sitting comfortably harry… 😕

the last one ed bought was £375 😮

nik

[Nicola McIntosh]

quote Mike Grant:

It doesn’t only have to be UV Nic as I got one 😛 and absolutly nothing like halogens.

is that the bulbs that look like mushrooms? im thinking of the thin skinny bulbs for the industrial cameras…. 😕

nik

[Harry Cleary]

quote Nicola Rowlands:

hope yer sitting comfortably harry… 😕

the last one ed bought was £375 😮

nik

NIC! no no no, please….no?

[Nicola McIntosh]

quote Nicola Rowlands:

quote Mike Grant:

It doesn’t only have to be UV Nic as I got one 😛 and absolutly nothing like halogens.

is that the bulbs that look like mushrooms? im thinking of the thin skinny bulbs for the industrial cameras…. 😕
nik

its ok ive re-read the thread proparly……yes the ones that look like fly eyes…got four of them used them years ago before we bought the uv exposure unit 😀

nik

[Harry Cleary]

and???? how much 😮

[Nicola McIntosh]

quote Harry Cleary:

and???? how much 😮

oh not sure harry….i will ask ed tomorrow 😉

nik

[Harry Cleary]

Cheers Nik, sleep will come slowly tonight.. 😀 😀 😀

[Kevin Flowers]

Harry
mercury vapour bulbs need a special lamp holder & system, as they require an igniter system to actually make the bulb work which is normally all integral of the lamp holder casing.
http://www.lamptech.co.uk/Documents/M1% … uction.htm
this might give you some info, use to fit them in large warehouses bulbs are available with different values if i remember rightly various colour light & UV values. Could be something different you need but hope it helps

Kev

[David Rowland]

if i recall correctly.. we had a 4 bulb exposure unit that we hand build, came with a balast and so forth, switch it on and like 1 minute later the lights get the tempreture and can burn a good bit of UV light out. Then there is the projector method that the silk screen company i worked for used, this was with a different light (arc UV based i believe)…

however nothing cheap harry… we got ours from Sericol… anyway, dont forget that emulsion (with sensitizer bottle) needs coating troffs, washout, hose pipe, drying cabinet, dark room with gold light, newspaper. Pre-press like a laser printer or vinyl cutter with films mounted on clear, then there is screen reclaiming chemicals and then there is a quick shelf life for the stuff if you mixed it up with the sensitizer!.

hope that helps

[Nicola McIntosh]

quote Kevin Flowers:

Harry
mercury vapour bulbs need a special lamp holder & system, as they require an igniter system to actually make the bulb work which is normally all integral of the lamp holder casing.
http://www.lamptech.co.uk/Documents/M1% … uction.htm
this might give you some info, use to fit them in large warehouses bulbs are available with different values if i remember rightly various colour light & UV values. Could be something different you need but hope it helps

Kev

ed used his in a normal lamp holder…with the igniter box, in the days before we bought one of these http://www.natgraph.co.uk/products/prod … duct_id=16

nik

[David Rowland]

thats what the silk screen company uses now, much more UV comes out of that one but a fair bit of kit indeed, metal halide, thats the word..

also the light bulb method is mercury vapour.. aka the cheaper way of doing it but less UV output

[John Gregson]

Hi Harry,
Bought 4 of these bulbs ( or the equivelent ) for a screen printing exposure unit about 7 years ago and they are still going strong. They are made by osram or philips i think, are mushroom shaped, and I purchased them from Newey & Eyre for about £30.00 each. They have a screw fitting so you’ll need the mount aswell. If its only for a few screens try a sun bed and mess around with exposure as I think any uv light source will expose screen emulsion!

Try Belfast Newey eyre on tel: 028 9079 0399

Cheers John

[John Gregson]

sorry wrong number try tel: 028 9079 9399 for Newey eyre

John

[Harry Cleary]

Cheers John, will try them out.

[Fran Hollywood]

Harry,

quote :

Newey eyre

I think they are the same group as Eastern Electrical. They have a place in Dundalk

Eastern Electrical,Coes Road, Dundalk,
Phone: 042-9337101
Fax: 042-9337193

[Harry Cleary]

cheers foamcutter,

start spreading manure,
I’m leaving today,
I want to be a part of it
dundalk! dundalk! 😀 😀 😀

[Fran Hollywood]

quote :

I want to be a part of it

Well hopefully not our part as it is full of muck at the moment ( new road to the border ).

Harry, give us the second chorus to that glorious song you started.

[Harry Cleary]

wish I could remember it, heard a guy sing it as a party piece one night, very funny, and he was from Dundalk, so it was full of passion.
BTW is Coes road were the bus station is?

[Fran Hollywood]

quote :

wish I could remember it, heard a guy sing it as a party piece one night, very funny, and he was from Dundalk, so it was full of passion

And you were full of drink *drink*

quote :

BTW is Coes road were the bus station is?

I knew you were on the drink as it’s on the other side of town. Just off the bypass at National tile and it’s your 2nd left right at Duprint. Then straight to the end.

What the film festival your involved with? (from another post)

[Harry Cleary]

Clones Film Festival in county Monaghan, want to do a foam Marilyn Monroe for our launch night? You could really enjoy your work!!!

Me drunk? The nerve!!!

[Fran Hollywood]

Harry,

if you get the profile we will cut the foam. (just owe me a pint and take a few pictures)

It will take to long to do a 3D version, but a full-size profile with a digi print on the flat face would turn a few heads. Do it about 6" thick and she should stand on her own. What about the famous image of her skirt billowing up ?

[Harry Cleary]

Im not on the scrounge but it would be a great thing to do as the poster features the skirt image http://www.uksignboards.com/viewtopic.php?t=21669 scroll to the bottom (excuse the pun!) can you email me as Im not allowed.
Cheers

[Fran Hollywood]

For the image you could try allposters.com but i don’t think it will be full size.

Give me a phone on 086 2555290

Cheers

Fran

[Jill Marie Welsh]

This has nothing to do with bulbs.
But you could make a blowing skirt quite easily.
(for Marilyn of course)
Just get some sheer fabric, probably two yards.
laying it onto the foam Marilyn from the waist up.
Pleat it and staple it at the same time into the foam (or use rivets maybe)
Then stand her up and it should hang like a skirt.
You might need to trim the edges with scissors so it hangs properly.
You could get a small fan and place it so that the air is blowing the fabric.
Just an idea.
love….Jill

[Harry Cleary]

Nice one Jill, that should work really well.
Thanks

[Ian Stewart-Koster]

I suppose sunshine is in a lesser supply "up over", and it may seem ‘unprofessional’ but we manage with "downunder" sunshine here- depending on the thickness of the emulsion and the standard of the positive (ruby, plotted 3M 7725 vinyl, or laser-printed vellum), I can expose a screen quite OK in 35-55 seconds in the afternoon sun, or a bit less in the morning to midday sun. It takes a few stuffups to fine tune the system, and a gut feeling for the sun’s intensity at the time you do it, and watch out for clouds…

but it is affordable. It’s main failing is on cloudy days…

[R Ferguson]

I use Mercury vapor bulbs to expose my screens. You can buy bulbs with built in ballasts (ignitors) for around the 30 pound mark. I have mine suspended from the celling above my bench.

This works fine for simple stencil’s

[Neil Churchman]

Exposing sensitized screens in the sun is a great idea – a photographers light meter might help get an accurate reading of how strong the sun is, to calculate correct exposure time.

We’ve always used the Metal Halide UV lamps – they cost an arm and a leg but I think they burn brighter than mercury vapour and reduce exposure time. (also good for the pre-holiday tan) 🙂

[kreptile]

I have helped develop a Mercury Vapour lamp for use with reptiles, great UV output and UV gradient, what you have to be aware of with the MVB’s is the fast decay of UV.

How intense an amount of UV do you need to propery cure the screens ?

Darren

[David Rowland]

Darren, the post is very old