Don't use UV setting glass glue in winter! - UK Vintage Radio Repair and Restoration Discussion Forum

PJL · 7th Dec 2008, 11:43 pm

I bought some glass glue to repair a dial glass for a VHF90. 'just leave in the sun and it will set in 30s'

Not this time of the year it doesn't...6 hours of 'sunshine' and nothing

Slung the UV lamp out years ago and I'm a bit too old for disco's.

evingar · 8th Dec 2008, 1:02 am

Apparently some of they there new fangled compact florescent things give out quite a bit of UV (the sort without an external globe). There was a "media scare" about it a while ago.

Maybe worth sticking it under one of those for a bit.

davidw · 8th Dec 2008, 9:43 am

What about one of those bank note checking gizmos from Maplins (MW36P)?

humphrey · 8th Dec 2008, 10:10 am

Pardon me for butting it, but is the dial made of glass and not perspex or acrylic? Isocyanates are very particular.

Boom · 8th Dec 2008, 5:17 pm

If you get really desperate I have 40 Watts of UV here. You would need to post me the glass.

It is amazing what can be seen under this light especially with bank notes.

Nickthedentist · 8th Dec 2008, 5:31 pm

UV LEDs are available too now (see eBay etc.)

Nick.

XTC · 8th Dec 2008, 5:48 pm

Service Trading - a long standing advertiser in EPE etc - used to do little UV fluorescent tubes, about 15 watts. I bought one and still use it to etch PBCs occasionally.

Failing that, a lot of halogen desk lamps had a UV shield and a warning about removing it, so if you've got one of those, it would be worth a try without the shield.

Arc welders throw out enormous amounts of UV. OK if you've got one handy in the garage.

LEDs and banknote proving lamps - possibly.

The difficulty with a problem like this is that unless you have a lot of glass to glue, you don't want to spend much and have the gear hanging around. You just want an improvised, cheap solution.

Pete.

ppppenguin · 8th Dec 2008, 6:06 pm

If you have an EPROM eraser (that's almost vintage now!) it has a UV source. Be very careful if you run this sort of tube out of it's box. It's germicidal UV (short wavelength) which is VERY dangerous to your eyes and not at all good for your skin.

Boom · 8th Dec 2008, 7:42 pm

I'd also suggest looking at the neighbours to see if any have a pond. The water sterilisers are UV.

dseymo1 · 8th Dec 2008, 8:48 pm

Some of the above suggested sources of UV may well work, but bear in mind that 'UV' covers a pretty broad range of wavelengths, and that the glue is probably fairly specific in its requirements.

PJL · 8th Dec 2008, 9:01 pm

I sold my UV eraser with a spare tube too and there was a tube to purify the water in the pond filter but that is dead.

I'll try the halogen and flourescent lights to see if they work.

If not I'll have to get a spare for the pond filter and try that - don't have a pond anymore but at least it has a possibility it will be used again.

GeorgSc · 31st Dec 2008, 7:33 pm

Hello,
pardon me, but I think the same direction as Humphrey:
UV-Cure glues are common for Perspex (Lucite, Plexigls etc)
but rather uncommon for real glas.
Regards
Georg

Paul Stenning · 1st Jan 2009, 2:35 pm

Maplin sell it here http://www.maplin.co.uk/Module.aspx?...C=SO&U=strat15

Quote:

Product Features

* Optically clear bond
* Cures rapidly under direct sunlight
* Easy to dispense from a handy syringe
* Bond glass and crystal to themselves and metal
* Supplied in a 2ml tube

7th Dec 2008, 11:43 pm	#1
PJL Dekatron Join Date: Sep 2005 Location: Seaford, East Sussex, UK. Posts: 5,997	Don't use UV setting glass glue in winter! I bought some glass glue to repair a dial glass for a VHF90. 'just leave in the sun and it will set in 30s' Not this time of the year it doesn't...6 hours of 'sunshine' and nothing Slung the UV lamp out years ago and I'm a bit too old for disco's.

8th Dec 2008, 1:02 am	#2
evingar Octode Join Date: Oct 2003 Location: Newbury, Berkshire, UK. Posts: 1,770	Re: Don't use UV setting glass glue in winter! Apparently some of they there new fangled compact florescent things give out quite a bit of UV (the sort without an external globe). There was a "media scare" about it a while ago. Maybe worth sticking it under one of those for a bit. __________________ Chris

8th Dec 2008, 9:43 am	#3
davidw Heptode Join Date: Sep 2006 Location: Woodbridge, Suffolk, UK. Posts: 643	Re: Don't use UV setting glass glue in winter! What about one of those bank note checking gizmos from Maplins (MW36P)? __________________ Dave G1AGK. My perception is my reality!

8th Dec 2008, 10:10 am	#4
humphrey Retired Dormant Member Join Date: Aug 2008 Location: Bellac, 87. France. Posts: 357	Re: Don't use UV setting glass glue in winter! Pardon me for butting it, but is the dial made of glass and not perspex or acrylic? Isocyanates are very particular.

8th Dec 2008, 5:17 pm	#5
Boom Retired Dormant Member Join Date: Jan 2007 Location: Westbury, Wiltshire, UK. Posts: 2,451	Re: Don't use UV setting glass glue in winter! If you get really desperate I have 40 Watts of UV here. You would need to post me the glass. It is amazing what can be seen under this light especially with bank notes.

8th Dec 2008, 5:31 pm	#6
Nickthedentist Dekatron Join Date: Jan 2005 Location: Oxford, UK. Posts: 17,866	Re: Don't use UV setting glass glue in winter! UV LEDs are available too now (see eBay etc.) Nick.

8th Dec 2008, 5:48 pm	#7
XTC Retired Dormant Member Join Date: Oct 2004 Location: Bristol, UK. Posts: 837	Re: Don't use UV setting glass glue in winter! Service Trading - a long standing advertiser in EPE etc - used to do little UV fluorescent tubes, about 15 watts. I bought one and still use it to etch PBCs occasionally. Failing that, a lot of halogen desk lamps had a UV shield and a warning about removing it, so if you've got one of those, it would be worth a try without the shield. Arc welders throw out enormous amounts of UV. OK if you've got one handy in the garage. LEDs and banknote proving lamps - possibly. The difficulty with a problem like this is that unless you have a lot of glass to glue, you don't want to spend much and have the gear hanging around. You just want an improvised, cheap solution. Pete.

8th Dec 2008, 6:06 pm	#8
ppppenguin Retired Dormant Member Join Date: Dec 2003 Location: North London, UK. Posts: 6,168	Re: Don't use UV setting glass glue in winter! If you have an EPROM eraser (that's almost vintage now!) it has a UV source. Be very careful if you run this sort of tube out of it's box. It's germicidal UV (short wavelength) which is VERY dangerous to your eyes and not at all good for your skin.

8th Dec 2008, 7:42 pm	#9
Boom Retired Dormant Member Join Date: Jan 2007 Location: Westbury, Wiltshire, UK. Posts: 2,451	Re: Don't use UV setting glass glue in winter! I'd also suggest looking at the neighbours to see if any have a pond. The water sterilisers are UV.

8th Dec 2008, 8:48 pm	#10
dseymo1 Retired Dormant Member Join Date: Dec 2007 Location: Shropshire, UK. Posts: 3,051	Re: Don't use UV setting glass glue in winter! Some of the above suggested sources of UV may well work, but bear in mind that 'UV' covers a pretty broad range of wavelengths, and that the glue is probably fairly specific in its requirements.

8th Dec 2008, 9:01 pm	#11
PJL Dekatron Join Date: Sep 2005 Location: Seaford, East Sussex, UK. Posts: 5,997	Re: Don't use UV setting glass glue in winter! I sold my UV eraser with a spare tube too and there was a tube to purify the water in the pond filter but that is dead. I'll try the halogen and flourescent lights to see if they work. If not I'll have to get a spare for the pond filter and try that - don't have a pond anymore but at least it has a possibility it will be used again.

31st Dec 2008, 7:33 pm	#12
GeorgSc Retired Dormant Member Join Date: Dec 2008 Location: Germany Palatinate Posts: 87	Re: Don't use UV setting glass glue in winter! Hello, pardon me, but I think the same direction as Humphrey: UV-Cure glues are common for Perspex (Lucite, Plexigls etc) but rather uncommon for real glas. Regards Georg