2H4 From United States of America, joined Oct 2004, 8957 posts, RR: 58 Posted (9 years 5 months 3 weeks 3 days 22 hours ago) and read 2171 times:
So I just got back from the dentist, where he secured a loose filling. He used two syringes...with applicator tips...no needles, thank god...and applied two different substances. He then used a strange type of flashlight to "activate" the stuff. Later, he explained that the flashlight emits a very bright "white light" to activate the sealant.
This is the first I've ever heard of light-activated sealants/adhesives. Is this technology used in the aviation industry at all? I'd love to hear more about it.
Vzlet From United States of America, joined Mar 2004, 853 posts, RR: 0
Reply 5, posted (9 years 5 months 3 weeks 3 days 4 hours ago) and read 2074 times:
Even back at least as far as the 1970s, some brands (Carl Goldberg, for example) of trim striping tape for (flying) model planes relied on the UV present in sunlight to achieve a final adhesive cure.
"That's so stupid! If they're so secret, why are they out where everyone can see them?" - my kid
Thanks, Mel. Your link lists "Aircraft and aerospace structural assemblies" as applications utilizing this technology. Do you have any idea where the stuff is used, specfically, and on what materials? Is it only used on composites, or metals as well? What are the advantages and disadvantages of the stuff?