Most glass is opaque to UV light. The same is true for most clear plastics. Solar panel glass only needs to be transparent in the frequencies used by solar panels. Unless I was sure that the glass was transparent at the UV curing frequencies, I wouldn't try to shine UV through the glass to cure the adhesive.
There are many different UV curable adhesives. In most of the applications that I've seen, bright UV light is shone directly into the thin adhesive gap. I think some of these adhesives are partially transparent to UV and the UV light initiates the cure throughout the adhesive, but in other UV adhesives such as many of the UV cured epoxy, the UV initiates the cure at the edge and that catalyzes the reaction throughout the adhesive bond. Given the production volume on the marble project, it's probably not worth designing a UV cure adhesive solution, and besides, most of the UV cured adhesives are expensive. If I tried, I'd probably use a thick UV curable adhesive and gently place the marbles so there is a fairly thick adhesive bond, relatively speaking. A thin layer of UV cured adhesive isn't going to absorb much UV energy. I like these weird projects. I look forward to a YouTube video! On 10/10/2012 06:34 AM, yann jautard wrote: > I agree with Andy, I'm pretty sure this can't work. > > I already tested UV curing glue for solar panel assembly, and I wasn't > able to get the UV pass trough the solar panel glass. And solar panel > glass are "extra clear" glass that should not block any light... ------------------------------------------------------------------------------ Don't let slow site performance ruin your business. Deploy New Relic APM Deploy New Relic app performance management and know exactly what is happening inside your Ruby, Python, PHP, Java, and .NET app Try New Relic at no cost today and get our sweet Data Nerd shirt too! http://p.sf.net/sfu/newrelic-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
