Odyseus 1 Posted November 3, 2012 Hi All, I need to re-glue a plexi glass (ie acrylic) crystal to a watch and have decided not to use CS cement but a UV glue - Sternkreuz Minecol No 224. The question is how to cure it? On the watch tools site (http://www.watchtool.co.uk/deluxe-gl...mp-p-6984.html) their UV curing lamp looks very like the ones on ebay/Amazon costing £15-£20?? and have the same 4 off 9W UV lamps. So I bought one. I also have a PCB UV light box. But after half an hour under the lamp, the watch crystal came out without much effort. Previously I had actually used CS cement and the bond was considerably stronger!!!! A couple of questions then:- What's the best UV glue and are those nail gel curing UV lamps OK for watch UV glue curing?? All the best John Share this post Link to post Share on other sites
10:10 Watch Repair 1 Posted November 3, 2012 the sun works pretty well as a UV lamp alternative. Share this post Link to post Share on other sites
Odyseus 1 Posted November 4, 2012 Alas for us poor Brits..the sun is something rarely seen :( I reckon that sitting the watch by a window is no good as the UV might get filtered by the glass? The main problem I have with the UV adhesive is knowing if it's actually cured? I'll put a test sample along with the next watch then I'll know.. Share this post Link to post Share on other sites
gtwc 1 Posted November 4, 2012 On a serious note - it might be worth contacting a 'friendly' dentist to ask about their UV curing - they basically use the same thing for attaching crowns etc. Good luck. Share this post Link to post Share on other sites
onionbag 1 Posted November 4, 2012 Or Kenny...........try him mate, I'm sure he has all the gubbins, UV light box etc. Share this post Link to post Share on other sites
10:10 Watch Repair 1 Posted November 4, 2012 Alas for us poor Brits..the sun is something rarely seen :( I reckon that sitting the watch by a window is no good as the UV might get filtered by the glass? The main problem I have with the UV adhesive is knowing if it's actually cured? I'll put a test sample along with the next watch then I'll know.. I have a very slow cure epoxy, I put a dot of it next to what I'm working on so I can check the dot for hardness. You don't need direct sunlight, a cloudy day should be fine. Share this post Link to post Share on other sites
trailboss99 996 Posted November 5, 2012 the sun works pretty well as a UV lamp alternative. Exactly. Bright sun is not necessary, just daylight. I use an old bank note checking lamp with a UV fluro tube in it but sunlight works just as well if somewhat more slowly. Share this post Link to post Share on other sites
