today we’re taking a look at a less
common type of glue one that cures with
there are a lot of types of glue in the
world and I think that over the years
I’ve used quite a few of them but today
we’re gonna be trying out some
experiments with a type of glue I’ve
actually never used before and that is
glue that cures with UV light at its
core this UV glue is a type of superglue
it’s a cyanoacrylate which means it’s
gonna be a clear liquid that bonds very
strong it’s gonna be really good for
some applications and not so good for
some other ones and we want to learn
what a few of those are and maybe talk
about some of the interesting things you
can do with this type of glue that you
can’t do so well with others UV curing
adhesives were introduced in the 1960s
and have since then become a lot more
affordable and easy to get your hands on
and so it’s something that you can
definitely use in hobby pursuits today
you don’t have to be some big fancy shop
with crazy equipment in fact you can
actually pick up some versions of it the
hardware store I got these at Home Depot
this is sort of an all-in-one kit that
has glue and a light built into it and
then I’ve also got these separate larger
bottles and this separate perhaps over
powered ultraviolet light here’s the
basic idea we’ve got some UV curing glue
some standard superglue a five-minute
epoxy and a glue gun we’re gonna compare
them together and see what’s best at
what for our first tests I have just a
sheet of scrap cardboard and we’re gonna
start putting the glue down on the
cardboard and see what it does how long
does it take to cure with the light how
long does it take to cure without the
light and how does it change with more
or less light I’m gonna do a test that’s
not necessarily recommended by the glue
manufacturers well it has a warning on
it says it bonds to skin instantly so
I’m actually going to take a little bit
of this put it in my thumb and finger
and then stick them together with normal
cyanoacrylate glue normal superglue
that’s gonna make them stick pretty much
immediately so let’s try this oh yeah
look at that
I just blew my fingers together however
yeah that little glue pretty good stick
there we go
if that does happen to you a little bit
of acetone is the best way to break
through that bond goes pretty quick okay
I’m gonna do a test it’s been sitting
there for about two minutes without
curing now we’re gonna hit it with the
UV light and see what happens to it that
was about five seconds ooh now it’s sort
of a tacky gummy sort of consistency so
it has started to cure now that seems
completely cured
it seems very rigid yeah it has no give
to it very hard all told though that’s
about 15 seconds so it’s not a very
quick care time let’s compare that to
our UV beast flashlights you know start
that’s cured that is a hard plastic and
it’s very warm
– when superglue cures it does put off
heat and when we force it to activate by
shining the UV light on it it puts off
more heat all at once enough that this
feels warm to the touch it’s cooling
down by now but right when I did it it
was pretty warm to the touch
let’s try a bigger blob of it I’m kind
of curious if we can actually get like a
visible reaction from all of the heat
yeah that’s a good sized blob of
superglue that could glue your fingers
together just about forever
try our big flashlight it goes well
assume that means it is in fact quite
hot
[Music]
how yeah yeah is getting very hot hot
enough that just by touching it I burned
my finger a little bit now it’s still a
little bit gummy this first one that I
did really cure it into a hard plastic
whereas this thicker puddle has some
give to it and that makes me think that
maybe the UV light doesn’t penetrate
through the glue very well so the top
might be cured but underneath the top
maybe isn’t quite yet so the UV light
here’s the glue and it puts off quite a
bit of heat when you do we do have one
more blacklight that I want to test and
that’s the blacklight that comes with
this fiberfix kit this whole system it’s
got a glue bottle built in it’s gotten
blacklight built in and I want to see
how well it works I also actually went
ahead and tore one of these open to see
how much glue is inside and here’s the
bottle it does say on it that it’s 5
grams or 0.176 ounces this bottle is 7
ounces so several times the amount of
glue that comes in the fiberfix kit this
little bottle is worth about four of
these so let’s test out the light on
this one this is the glue that comes
with the kit we’re gonna see how long it
takes to cure with the light that it
comes with is about the same consistency
now it’s beginning to set up alright
that definitely took longer it was more
like the first light we tested even
visually I mean this is obviously a much
smaller output but it seems like about
the same color whereas this UV beast
light it really does look like a
different shade they pretty much all
just looked blue on camera the UV beasts
light the one I’m swirling around right
now in real life it’s a bit more of a
pale purple whereas the other two look
like sort of a an intense bluish purple
there are a few things that make UV
cured glue very useful compared to
regular super to it now I love regular
super glue and I use it for plenty of
stuff but the best thing about it is
that you can choose when it gets here
when it gets activated so you can put
some glue on something hold it in place
and hit it with the light it’s just
gonna freeze in place and that’s pretty
valuable one of the other things I want
to try with it though is I want to see
if I can sort of build up or even sculpt
with this stuff not going for anything
fancy but because I can make it cure
when I want it to I’m gonna try and just
build like a tiny little box out of it
attached to this cardboard here
[Music]
just testing the one layer I did yeah
nice and cured as a little test we’ve
got these UV protecting glasses and we
have a second pair and we’re actually
going to try and put those in front of
the camera lens and see if that lets us
see the backlight a little bit better it
does have a tendency to overwhelm the
camera when it’s shining really brightly
but hopefully like this we’ll be able to
see what’s happening more with and
so that is really cool how much I can
build up just putting glue on top of
glue and hitting it with the light in
between each layer I’m gonna do a
strength test got some bamboo skewers
four types of glue I’ve got UV here glue
i’ve got regular superglue and baking
soda i can add into it I’ve got some
five minute epoxy and I’ve got a hot
glue gun I’m just gonna glue some
skewers together with each of those we
can see which one is gonna hold up the
best okay
three of these probably have already
completely set the hot glue has probably
cooled down the two super glues that we
cured with the baking soda and UV light
or almost certainly cured but the epoxy
is not it’s five minute epoxy you know
we’re gonna give that probably at least
ten minutes to really make sure it’s set
pretty well it won’t be at 100% full
cure which doesn’t take place for an
hour but I think we’re gonna get a
pretty good approximation of how it
works I am now going to take a whole
bottle of this glue pour it into this
cup and hit it with the light I’m
curious how much heat what catalytic
reaction we’re gonna get out of that and
it may only be 0.7 ounces but for super
glue that’s quite a lot just very slight
yellow tint to it we have that much of
it
three-two-one
plenty of fumes coming off with that is
such kind of interesting the top layer
is cured but it’s like gummy flexible
it’s also very much changed color before
it was slightly yellow tinted and now
it’s gone a little bit more green or
blue try and give it some more light
from the sides not sure how Yui
seems that the UV glue is actually not
completely UV transparent once it cures
it doesn’t really let light through all
the way I mean it’s not just on the very
top layer that it’s cured but it hasn’t
cured all the way through either also
this cup looks sweet like this let’s
test our bamboo skewers how hard is it
to pull these apart first off we’ve got
so surprisingly good hold
I really think of hot glue is something
that’s gonna really hold on in a pinch
but pulling laterally against the
direction of the glue that’s holding on
pretty nicely I’m gonna see what happens
if I try and twist well yeah that’s more
like what I was expecting it just sort
of tore right through the glue there’s
still glue on both sticks but it just
tore apart when I twisted just a little
bit okay here is our super glue with
baking soda Oh yep that’s holding pretty
well that way too as hard as I can hold
on to it
maybe a little bit stronger than the hot
glue it’s still shattered when I got a
little bit of twist on it and again
there’s still glue on both sticks it
didn’t release from one side it’s just
the glue itself gave out okay here’s our
epoxy our two-part epoxy try and pull
this apart oh that just pulled apart now
it is possible I didn’t give this quite
enough time to cure it is still just a
little bit gummy
I don’t know that didn’t feel very
stable though here’s our UV cured super
glue oh I was able to pull that one
apart too that does not look like it was
bonded very well is it the strongest
glue it’s not looking like it but for
convenience in some applications it
might be just what you need I want to
find some other cool things we can try
out with this stuff I really like how it
works
if you’ve got any suggestions of things
you want to see us do with the UV curing
glue let us know because I want to try
those things too guys that’s not all
we’ve always got more for you to see the
box up at the top takes you directly to
our last video you should go check that
out
the other box shows you what YouTube
thinks you should be watching next you
hit this bomb here in the middle you’ll
be subscribed to the channel in that way
you’re never gonna miss a cool video
especially if you don’t forget to ring
that Bell so you get the notification
about it we’ll see in the next one talk to you then
common type of glue one that cures with
there are a lot of types of glue in the
world and I think that over the years
I’ve used quite a few of them but today
we’re gonna be trying out some
experiments with a type of glue I’ve
actually never used before and that is
glue that cures with UV light at its
core this UV glue is a type of superglue
it’s a cyanoacrylate which means it’s
gonna be a clear liquid that bonds very
strong it’s gonna be really good for
some applications and not so good for
some other ones and we want to learn
what a few of those are and maybe talk
about some of the interesting things you
can do with this type of glue that you
can’t do so well with others UV curing
adhesives were introduced in the 1960s
and have since then become a lot more
affordable and easy to get your hands on
and so it’s something that you can
definitely use in hobby pursuits today
you don’t have to be some big fancy shop
with crazy equipment in fact you can
actually pick up some versions of it the
hardware store I got these at Home Depot
this is sort of an all-in-one kit that
has glue and a light built into it and
then I’ve also got these separate larger
bottles and this separate perhaps over
powered ultraviolet light here’s the
basic idea we’ve got some UV curing glue
some standard superglue a five-minute
epoxy and a glue gun we’re gonna compare
them together and see what’s best at
what for our first tests I have just a
sheet of scrap cardboard and we’re gonna
start putting the glue down on the
cardboard and see what it does how long
does it take to cure with the light how
long does it take to cure without the
light and how does it change with more
or less light I’m gonna do a test that’s
not necessarily recommended by the glue
manufacturers well it has a warning on
it says it bonds to skin instantly so
I’m actually going to take a little bit
of this put it in my thumb and finger
and then stick them together with normal
cyanoacrylate glue normal superglue
that’s gonna make them stick pretty much
immediately so let’s try this oh yeah
look at that
I just blew my fingers together however
yeah that little glue pretty good stick
there we go
if that does happen to you a little bit
of acetone is the best way to break
through that bond goes pretty quick okay
I’m gonna do a test it’s been sitting
there for about two minutes without
curing now we’re gonna hit it with the
UV light and see what happens to it that
was about five seconds ooh now it’s sort
of a tacky gummy sort of consistency so
it has started to cure now that seems
completely cured
it seems very rigid yeah it has no give
to it very hard all told though that’s
about 15 seconds so it’s not a very
quick care time let’s compare that to
our UV beast flashlights you know start
that’s cured that is a hard plastic and
it’s very warm
– when superglue cures it does put off
heat and when we force it to activate by
shining the UV light on it it puts off
more heat all at once enough that this
feels warm to the touch it’s cooling
down by now but right when I did it it
was pretty warm to the touch
let’s try a bigger blob of it I’m kind
of curious if we can actually get like a
visible reaction from all of the heat
yeah that’s a good sized blob of
superglue that could glue your fingers
together just about forever
try our big flashlight it goes well
assume that means it is in fact quite
hot
[Music]
how yeah yeah is getting very hot hot
enough that just by touching it I burned
my finger a little bit now it’s still a
little bit gummy this first one that I
did really cure it into a hard plastic
whereas this thicker puddle has some
give to it and that makes me think that
maybe the UV light doesn’t penetrate
through the glue very well so the top
might be cured but underneath the top
maybe isn’t quite yet so the UV light
here’s the glue and it puts off quite a
bit of heat when you do we do have one
more blacklight that I want to test and
that’s the blacklight that comes with
this fiberfix kit this whole system it’s
got a glue bottle built in it’s gotten
blacklight built in and I want to see
how well it works I also actually went
ahead and tore one of these open to see
how much glue is inside and here’s the
bottle it does say on it that it’s 5
grams or 0.176 ounces this bottle is 7
ounces so several times the amount of
glue that comes in the fiberfix kit this
little bottle is worth about four of
these so let’s test out the light on
this one this is the glue that comes
with the kit we’re gonna see how long it
takes to cure with the light that it
comes with is about the same consistency
now it’s beginning to set up alright
that definitely took longer it was more
like the first light we tested even
visually I mean this is obviously a much
smaller output but it seems like about
the same color whereas this UV beast
light it really does look like a
different shade they pretty much all
just looked blue on camera the UV beasts
light the one I’m swirling around right
now in real life it’s a bit more of a
pale purple whereas the other two look
like sort of a an intense bluish purple
there are a few things that make UV
cured glue very useful compared to
regular super to it now I love regular
super glue and I use it for plenty of
stuff but the best thing about it is
that you can choose when it gets here
when it gets activated so you can put
some glue on something hold it in place
and hit it with the light it’s just
gonna freeze in place and that’s pretty
valuable one of the other things I want
to try with it though is I want to see
if I can sort of build up or even sculpt
with this stuff not going for anything
fancy but because I can make it cure
when I want it to I’m gonna try and just
build like a tiny little box out of it
attached to this cardboard here
[Music]
just testing the one layer I did yeah
nice and cured as a little test we’ve
got these UV protecting glasses and we
have a second pair and we’re actually
going to try and put those in front of
the camera lens and see if that lets us
see the backlight a little bit better it
does have a tendency to overwhelm the
camera when it’s shining really brightly
but hopefully like this we’ll be able to
see what’s happening more with and
so that is really cool how much I can
build up just putting glue on top of
glue and hitting it with the light in
between each layer I’m gonna do a
strength test got some bamboo skewers
four types of glue I’ve got UV here glue
i’ve got regular superglue and baking
soda i can add into it I’ve got some
five minute epoxy and I’ve got a hot
glue gun I’m just gonna glue some
skewers together with each of those we
can see which one is gonna hold up the
best okay
three of these probably have already
completely set the hot glue has probably
cooled down the two super glues that we
cured with the baking soda and UV light
or almost certainly cured but the epoxy
is not it’s five minute epoxy you know
we’re gonna give that probably at least
ten minutes to really make sure it’s set
pretty well it won’t be at 100% full
cure which doesn’t take place for an
hour but I think we’re gonna get a
pretty good approximation of how it
works I am now going to take a whole
bottle of this glue pour it into this
cup and hit it with the light I’m
curious how much heat what catalytic
reaction we’re gonna get out of that and
it may only be 0.7 ounces but for super
glue that’s quite a lot just very slight
yellow tint to it we have that much of
it
three-two-one
plenty of fumes coming off with that is
such kind of interesting the top layer
is cured but it’s like gummy flexible
it’s also very much changed color before
it was slightly yellow tinted and now
it’s gone a little bit more green or
blue try and give it some more light
from the sides not sure how Yui
seems that the UV glue is actually not
completely UV transparent once it cures
it doesn’t really let light through all
the way I mean it’s not just on the very
top layer that it’s cured but it hasn’t
cured all the way through either also
this cup looks sweet like this let’s
test our bamboo skewers how hard is it
to pull these apart first off we’ve got
so surprisingly good hold
I really think of hot glue is something
that’s gonna really hold on in a pinch
but pulling laterally against the
direction of the glue that’s holding on
pretty nicely I’m gonna see what happens
if I try and twist well yeah that’s more
like what I was expecting it just sort
of tore right through the glue there’s
still glue on both sticks but it just
tore apart when I twisted just a little
bit okay here is our super glue with
baking soda Oh yep that’s holding pretty
well that way too as hard as I can hold
on to it
maybe a little bit stronger than the hot
glue it’s still shattered when I got a
little bit of twist on it and again
there’s still glue on both sticks it
didn’t release from one side it’s just
the glue itself gave out okay here’s our
epoxy our two-part epoxy try and pull
this apart oh that just pulled apart now
it is possible I didn’t give this quite
enough time to cure it is still just a
little bit gummy
I don’t know that didn’t feel very
stable though here’s our UV cured super
glue oh I was able to pull that one
apart too that does not look like it was
bonded very well is it the strongest
glue it’s not looking like it but for
convenience in some applications it
might be just what you need I want to
find some other cool things we can try
out with this stuff I really like how it
works
if you’ve got any suggestions of things
you want to see us do with the UV curing
glue let us know because I want to try
those things too guys that’s not all
we’ve always got more for you to see the
box up at the top takes you directly to
our last video you should go check that
out
the other box shows you what YouTube
thinks you should be watching next you
hit this bomb here in the middle you’ll
be subscribed to the channel in that way
you’re never gonna miss a cool video
especially if you don’t forget to ring
that Bell so you get the notification
about it we’ll see in the next one talk to you then
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