https://www.ebay.co.uk/itm/284120960911(...)
My guess is that all the advertised 'EPOXY' UV glues on ebay and Amazon
are actually Acrylic... anyone know better or for sure? C+
On Thu, 27 Jan 2022 06:48:53 +0000, Charlie+ <charlie@xxx.net> wrote:
https://www.ebay.co.uk/itm/284120960911(...)
My guess is that all the advertised 'EPOXY' UV glues on ebay and Amazon
are actually Acrylic... anyone know better or for sure? C+
UV curing epoxy is quite real. The problem is I don't know what the
eBay vendor is actually selling. I suggest you look at the different
curing instructions for UV curing acrylic and epoxy in the article
below, and try to determine which one matches the product you
purchased.
"UV curing acrylic vs. UV epoxy" ><https://www.galindberg.se/blogg/uv-curing-acrylic-vs-uv-epoxy/>
Two common types of UV curing (light curing) adhesives
are those based on acylate and epoxy. Both are cured
using UV or blue light between 365 nm and 405 nm. The
difference between them lies in their chemistry. Both
the curing process and final properties differ.
Full disclosure: I've worked with UV curable cyanoacrylate adhesive,
but not epoxy.
On Thu, 27 Jan 2022 03:10:21 -0800, Jeff Liebermann <jeffl@cruzio.com>
wrote as underneath :
On Thu, 27 Jan 2022 06:48:53 +0000, Charlie+ <charlie@xxx.net> wrote:
https://www.ebay.co.uk/itm/284120960911(...)
My guess is that all the advertised 'EPOXY' UV glues on ebay and Amazon >>>are actually Acrylic... anyone know better or for sure? C+
UV curing epoxy is quite real. The problem is I don't know what the
eBay vendor is actually selling. I suggest you look at the different >>curing instructions for UV curing acrylic and epoxy in the article
below, and try to determine which one matches the product you
purchased.
"UV curing acrylic vs. UV epoxy" >><https://www.galindberg.se/blogg/uv-curing-acrylic-vs-uv-epoxy/>
Two common types of UV curing (light curing) adhesives
are those based on acylate and epoxy. Both are cured
using UV or blue light between 365 nm and 405 nm. The
difference between them lies in their chemistry. Both
the curing process and final properties differ.
Full disclosure: I've worked with UV curable cyanoacrylate adhesive,
but not epoxy.
Thanks JL yes I know what I've already got! Acrylic - I needed a source
for genuine UV Epoxy as opposed to the sales speak epoxy which is'nt!
Reason is the acrylic UV can only set with direct UV, and it doesnt
stick like epoxy anyway.. but it is ok for some materials mostly
transparent for obvious reasons.. C+
<https://www.epoxies.com/products/uv-curable-illumabond/> ><https://www.epotek.com/products/uv-and-uv-hybrid-epoxies/> ><https://www.threebond.co.jp/en/product/search/?form=category-form&category=Adhesives&featuresfunctions=UV%20curing+UV-LED%20light%20source-curable>JL Thanks some great links you found, much better than I managed to
<https://www.polymer-g.com/uv-led-curable-products/uv-led-curable-epoxy/> >More:
<https://www.google.com/search?q=uv+curing+epoxy>
I looked for something on eBay (US) and only found small bottles, with
gaudy labels, claiming to be epoxy, but more likely to be acrylic like
the stuff you purchased. Searching for UV cure resign produced more
of the same. I didn't see any industrial grade products, just lots of >jewelry and arts+craft products. No clue what's available in UK, but
I suspect that you might need to purchase it from the manufacturer or >distributor.
I don't know your application, but you might look at 3D printing UV
curable resin:
<https://www.google.com/search?q=3d+printing+uv+epoxy>
The problem is that I can't tell in most products whether "resin"
refers epoxy, acrylic, urethane, or something else.
Good luck.
On Thu, 27 Jan 2022 10:52:51 -0800, Jeff Liebermann <jeffl@cruzio.com>
wrote as underneath :
snip ><https://www.epoxies.com/products/uv-curable-illumabond/> ><https://www.epotek.com/products/uv-and-uv-hybrid-epoxies/> ><https://www.threebond.co.jp/en/product/search/?form=category-form&catego ry=Adhesives&featuresfunctions=UV%20curing+UV-LED%20light%20source-curable
<https://www.polymer-g.com/uv-led-curable-products/uv-led-curable-epoxy/> >More: ><https://www.google.com/search?q=uv+curing+epoxy>
I looked for something on eBay (US) and only found small bottles, with >gaudy labels, claiming to be epoxy, but more likely to be acrylic like
the stuff you purchased. Searching for UV cure resign produced more
of the same. I didn't see any industrial grade products, just lots of >jewelry and arts+craft products. No clue what's available in UK, but
I suspect that you might need to purchase it from the manufacturer or >distributor.
I don't know your application, but you might look at 3D printing UV
curable resin:
<https://www.google.com/search?q=3d+printing+uv+epoxy>
The problem is that I can't tell in most products whether "resin"
refers epoxy, acrylic, urethane, or something else.
Good luck.JL Thanks some great links you found, much better than I managed to
find.. my education on the subject improves!
So I surmise:
Only industrial sources and prices - out of bounds for my uses!
Ultra short shelf life. Hours/Days only.
Probably actually made from hybrid acrylic/epoxy mixes.
Funnily enough the first thing I tried within a few minutes of getting
the eBay stuff and realizing it had no epoxy characteristics, was to mix
some with 5 min epoxy. Fully expecting it to be immiscible, amazed to
find it mixed fine and worked as a first shot experiment, semi cured
with UV 365nM immediately and set solid after elapsed time! Nothing
further done or measured but the potential is definitely there to DIY..
Might try again with slow set epoxy where an instant semi cure would be really useful! Thanks again. C+
JL Thanks some great links you found, much better than I managed to
find.. my education on the subject improves!
So I surmise:
Only industrial sources and prices - out of bounds for my uses!
Ultra short shelf life. Hours/Days only.
Probably actually made from hybrid acrylic/epoxy mixes.
Funnily enough the first thing I tried within a few minutes of getting
the eBay stuff and realizing it had no epoxy characteristics, was to mix
some with 5 min epoxy. Fully expecting it to be immiscible, amazed to
find it mixed fine and worked as a first shot experiment, semi cured
with UV 365nM immediately and set solid after elapsed time! Nothing
further done or measured but the potential is definitely there to DIY..
Might try again with slow set epoxy where an instant semi cure would be
really useful! Thanks again. C+
See if you can beg some that is reaching its end date from your dentist.
On Fri, 28 Jan 2022 09:21:23 +0000, liz@poppyrecords.invalid.invalid
(Liz Tuddenham) wrote as underneath :
Snip
JL Thanks some great links you found, much better than I managed to
find.. my education on the subject improves!
So I surmise:
Only industrial sources and prices - out of bounds for my uses!
Ultra short shelf life. Hours/Days only.
Probably actually made from hybrid acrylic/epoxy mixes.
Funnily enough the first thing I tried within a few minutes of getting
the eBay stuff and realizing it had no epoxy characteristics, was to mix >>> some with 5 min epoxy. Fully expecting it to be immiscible, amazed to
find it mixed fine and worked as a first shot experiment, semi cured
with UV 365nM immediately and set solid after elapsed time! Nothing
further done or measured but the potential is definitely there to DIY..
Might try again with slow set epoxy where an instant semi cure would be
really useful! Thanks again. C+
See if you can beg some that is reaching its end date from your dentist.
Hi Liz - now that is a good interesting suggestion - got an appointment
on the 31st, I'll ask then! Also brings forth the thaught of mixing
acrylic UV with glass isonomer as a trial route!! Thanks. C+
On Fri, 28 Jan 2022 09:21:23 +0000, liz@poppyrecords.invalid.invalid
(Liz Tuddenham) wrote as underneath :
Snip
JL Thanks some great links you found, much better than I managed to
find.. my education on the subject improves!
So I surmise:
Only industrial sources and prices - out of bounds for my uses!
Ultra short shelf life. Hours/Days only.
Probably actually made from hybrid acrylic/epoxy mixes.
Funnily enough the first thing I tried within a few minutes of getting
the eBay stuff and realizing it had no epoxy characteristics, was to mix >> some with 5 min epoxy. Fully expecting it to be immiscible, amazed to
find it mixed fine and worked as a first shot experiment, semi cured
with UV 365nM immediately and set solid after elapsed time! Nothing
further done or measured but the potential is definitely there to DIY..
Might try again with slow set epoxy where an instant semi cure would be
really useful! Thanks again. C+
See if you can beg some that is reaching its end date from your dentist.
Hi Liz - now that is a good interesting suggestion - got an appointment
on the 31st, I'll ask then! Also brings forth the thaught of mixing
acrylic UV with glass isonomer as a trial route!! Thanks. C+
On 28/01/2022 21:38, Charlie+ wrote:
On Fri, 28 Jan 2022 09:21:23 +0000, liz@poppyrecords.invalid.invalid
(Liz Tuddenham) wrote as underneath :
Snip
JL Thanks some great links you found, much better than I managed to
find.. my education on the subject improves!
So I surmise:
Only industrial sources and prices - out of bounds for my uses!
Ultra short shelf life. Hours/Days only.
Probably actually made from hybrid acrylic/epoxy mixes.
Funnily enough the first thing I tried within a few minutes of getting >>> the eBay stuff and realizing it had no epoxy characteristics, was to mix >>> some with 5 min epoxy. Fully expecting it to be immiscible, amazed to
find it mixed fine and worked as a first shot experiment, semi cured
with UV 365nM immediately and set solid after elapsed time! Nothing
further done or measured but the potential is definitely there to DIY.. >>> Might try again with slow set epoxy where an instant semi cure would be >>> really useful! Thanks again. C+
See if you can beg some that is reaching its end date from your dentist.
Hi Liz - now that is a good interesting suggestion - got an appointment
on the 31st, I'll ask then! Also brings forth the thaught of mixing
acrylic UV with glass isonomer as a trial route!! Thanks. C+
What is the green stuff used for solder mask? That is UV-curable and
perhaps it is epoxy. LPKF sells it in little packets like they use for ketchup or mustard in a fast food restaurant (but much more expensive I bet...) also it is green by default.
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