in today’s video we are revisiting our
hydrophobics and trying to make it even
more waterproof than before and using a
[Music]
a while back we did a few experiments
trying to find a good way to make magic
sand or hydrophobic sand that’s a sand
that you can pour into water but it
repels the water holding me in a sort of
Shield of air or round itself so that
when you pull the sand back up out is dr
sam and pores all over the same way dry
sand would rather than clumping together
the way wet sand does we tested a
silicon waterproofing spray Scotchgard
and never wet a two-part product that’s
really just designed to repel water a
lot we got some pretty good results of
all of them with the most water
repelling results from the never west
however I’ve done a little bit more
experimentation since there and there
are a couple issues that I keep running
into with the NeverWet first off it’s a
two-part spray and the first one really
makes the sand clump together it hardens
into almost this solid shell and so
after it dries you have to break it back
up into the individual grains of salmon
it’s hard to get a really fine grain
after you’ve done all that secondly
NeverWet seems to be increasingly hard
to find in stores there are three places
I used to know you could get it but
don’t seem to carry it anymore so I
decided to go back and try and see if we
can get better results with the other
products though the goal today is to
make hydrophobic sand that repels water
just as well as the never wet did by
using our silicone spray rather than the
never wet I also went out and I found
some colored jars of sand at a craft
store and they do come all the way full
not half empty like they are here but I
had to do some experimentation so that’s
why we’re missing some with sand in
these jars to get started all you really
need is some colored sand your
waterproofing silicone spray a little
cup and some aluminum foil here’s the
basic idea using colored sand from craft
store we’re going to soak it in water
proofing silicones let it dry and then
add a second any third layer of
waterproofing boost to make sure it’s
extremely hydrophobic to start we’ll
take some of our sand and pour it into
our small cup if you want to try and
make a lot of it once you can use the
whole jar if you only want a little bit
and just measure out what you want to
start with in my last trial I tried
spraying on three layers of this
silicone spray and it did work fairly
well we had some good repelling of the
water we were able to get the same go
down into the water and come back up
mostly dry but it wasn’t quite as good
as I want
and I now believe that the reason for
that is it wasn’t completely coated so
in experimenting I just found a better
way to coat the sand completely so it
makes sure that every single grain is
really slathered and surrounded by this
silicone spray that’s why we have it in
a cup rather than spread out on a cookie
sheet the way we did before with our
sand in the cup the goal is to now spray
in so much of this silicone that it
actually gets our sand kind of soaking
wet in the spray I’m gonna do that
outside because I definitely don’t want
to be breathing that in in here let’s
also take a small piece of aluminum foil
about this size it’s not very important
and what we’re actually going to use
this for will Bend it a little bit in
the middle and we’ll spray our silicone
right onto the foil and let it drip and
run down into the sand
at this point our container is soaked
with the silicone spray you can look at
the bottom of the container and see that
even the sand all the way down there is
completely covered in our silicone now
that our sand is completely soaked in
our silicone what we want to do is let
it dry
laying out flat on a piece of foil
here’s a sheet of foil I like to turn
the edges up so that when our sand is
dry it’s not so likely to just slide or
blow off the edge now let’s take our
sand put it under the foil and spread it
out about as thin as we can get it with
the sand spread out now comes the
slightly less exciting part you have to
let it dry out and I mean completely dry
out the silicone will get to a point
where it no longer is causing the sand
to stick together and when that happens
it will act like normal sand when you
pick it up it’ll just drop down and be
individual grains not sticking together
at all if you leave it outside it can
take 24 to 48 hours if it’s sunny and
warm it will definitely go faster as
another option for speeding things up if
you happen to have built one of our
dehydrator on 5000 food dehydrators you
can also use this to help dry out your
sand faster I wouldn’t recommend using
it a full heat but on medium heat with
the fan going it will dry out much
faster in this box then even sitting
outside in the Sun when I made the
dehydrator on five thousand there were a
few people who pointed out that I was
risking my safety by wiring the dimmer
switch to the white wire in the cord
rather than the black one you are
correct it should be wired to the black
one and I have since rewired it
switching those together soldering them
together and using heat shrink rather
than electrical tape whichever method
you use sunshine or dehydrator to dry or
sand once it’s back to a dry crumbly
state it’s time to apply two more layers
of the silicon using the same methods
once again get our sand completely
soaked in the silicone mix it up really
well flatten it out and let it dry after
the third time soaking sand and letting
it dry out whether in the Sun or the
dehydrator your Sam should now be ready
for testing and playing in the water
I’ve gone ahead and made batches of our
hydrophobic sand in five different
colors
I’m excited to see how it looks
underwater
[Music]
before we start using any of these
hydrophobic sands underwater I do want
to take just a quick look at the
difference between the hydrophobic sand
that we’ve created in the original
untreated sand that it starts as here’s
our untreated sand and here is the
hydrophobic sand that we’ve made now
both of these are dry and pretty powdery
you can see that there are little bits
of differences I would say that the
color on our treated hydrophobic sand
looks a tiny bit more vibrant than our
untreated sand it’s not a big difference
but it’s a slight change in color
another difference is that the
hydrophobics and actually just feels
somewhat softer which means that
gathering up all the tens of thousands
of individual grains covered in the
silicon something is actually changing
to make it feel just a little bit spongy
or almost and though some people think
that sand is coarse and rough and
irritating and it gets everywhere but
the hydrophobic sand is a little less
well right here as a first test I have a
spoonful of our red hydrophobics and I’m
just gonna dip that down under the water
not even pour it but just dip it down
and then pull it back up look at that
still just powder on top pour some of
this down into the water see what
guys this stuff is a ton of fun it
really does a pretty good job being
hydrophobic this sand has now been down
in here for like 15-20 minutes kind of
thing and when I pull it out it’s still
like dry powdery sand on top now
eventually this can get water absorbed
into it and if that happens all you need
to do is spread it out let it dry again
and it’s back to being good as new
although in our case we’ve now got
instead of five different colors of sand
we’ve got five colors of sand all mixed
together and you know if you like that
look great otherwise you’ll want to keep
your different colors separated in the
water if you ever want them to stay
separate once they’re mixed there’s no
unmixing them although I think I signed
up sort of that old Batman
Adam West Batman he had a machine
designed to separate out different
colors of powders if we can get one of
those and this will be all settled
colored sand and some silicone
waterproofing spray which is sold with
shoes in most department stores it’s
just designed for spraying on and then
he makes your shoes waterproof but in
this case we’re doing the same thing
with sand and it’s pretty fun to play
with you can make some cool like
underwater sand castles and stuff and it
just forms these weird little structures
and then stays dry when you pull it out
in it’s just a powder again so much fun
it is coarse and rough and irritating
like drawing my arm up it’s just like
under the paper towel so it’s like
hitting my arm with sandpaper and akin
was right guys that’s not all we’ve got
more for you see that box up at the top
will transport you directly to our last
video and of course you should go check
that out the box at the bottom will show
you what YouTube thinks you need to be
watching next there’s balm here in the
middle will subscribe you to the channel
that’s how you don’t miss any of the
videos don’t forget to ring that Bell
and we’ll see you the next one talk to you then
hydrophobics and trying to make it even
more waterproof than before and using a
[Music]
a while back we did a few experiments
trying to find a good way to make magic
sand or hydrophobic sand that’s a sand
that you can pour into water but it
repels the water holding me in a sort of
Shield of air or round itself so that
when you pull the sand back up out is dr
sam and pores all over the same way dry
sand would rather than clumping together
the way wet sand does we tested a
silicon waterproofing spray Scotchgard
and never wet a two-part product that’s
really just designed to repel water a
lot we got some pretty good results of
all of them with the most water
repelling results from the never west
however I’ve done a little bit more
experimentation since there and there
are a couple issues that I keep running
into with the NeverWet first off it’s a
two-part spray and the first one really
makes the sand clump together it hardens
into almost this solid shell and so
after it dries you have to break it back
up into the individual grains of salmon
it’s hard to get a really fine grain
after you’ve done all that secondly
NeverWet seems to be increasingly hard
to find in stores there are three places
I used to know you could get it but
don’t seem to carry it anymore so I
decided to go back and try and see if we
can get better results with the other
products though the goal today is to
make hydrophobic sand that repels water
just as well as the never wet did by
using our silicone spray rather than the
never wet I also went out and I found
some colored jars of sand at a craft
store and they do come all the way full
not half empty like they are here but I
had to do some experimentation so that’s
why we’re missing some with sand in
these jars to get started all you really
need is some colored sand your
waterproofing silicone spray a little
cup and some aluminum foil here’s the
basic idea using colored sand from craft
store we’re going to soak it in water
proofing silicones let it dry and then
add a second any third layer of
waterproofing boost to make sure it’s
extremely hydrophobic to start we’ll
take some of our sand and pour it into
our small cup if you want to try and
make a lot of it once you can use the
whole jar if you only want a little bit
and just measure out what you want to
start with in my last trial I tried
spraying on three layers of this
silicone spray and it did work fairly
well we had some good repelling of the
water we were able to get the same go
down into the water and come back up
mostly dry but it wasn’t quite as good
as I want
and I now believe that the reason for
that is it wasn’t completely coated so
in experimenting I just found a better
way to coat the sand completely so it
makes sure that every single grain is
really slathered and surrounded by this
silicone spray that’s why we have it in
a cup rather than spread out on a cookie
sheet the way we did before with our
sand in the cup the goal is to now spray
in so much of this silicone that it
actually gets our sand kind of soaking
wet in the spray I’m gonna do that
outside because I definitely don’t want
to be breathing that in in here let’s
also take a small piece of aluminum foil
about this size it’s not very important
and what we’re actually going to use
this for will Bend it a little bit in
the middle and we’ll spray our silicone
right onto the foil and let it drip and
run down into the sand
at this point our container is soaked
with the silicone spray you can look at
the bottom of the container and see that
even the sand all the way down there is
completely covered in our silicone now
that our sand is completely soaked in
our silicone what we want to do is let
it dry
laying out flat on a piece of foil
here’s a sheet of foil I like to turn
the edges up so that when our sand is
dry it’s not so likely to just slide or
blow off the edge now let’s take our
sand put it under the foil and spread it
out about as thin as we can get it with
the sand spread out now comes the
slightly less exciting part you have to
let it dry out and I mean completely dry
out the silicone will get to a point
where it no longer is causing the sand
to stick together and when that happens
it will act like normal sand when you
pick it up it’ll just drop down and be
individual grains not sticking together
at all if you leave it outside it can
take 24 to 48 hours if it’s sunny and
warm it will definitely go faster as
another option for speeding things up if
you happen to have built one of our
dehydrator on 5000 food dehydrators you
can also use this to help dry out your
sand faster I wouldn’t recommend using
it a full heat but on medium heat with
the fan going it will dry out much
faster in this box then even sitting
outside in the Sun when I made the
dehydrator on five thousand there were a
few people who pointed out that I was
risking my safety by wiring the dimmer
switch to the white wire in the cord
rather than the black one you are
correct it should be wired to the black
one and I have since rewired it
switching those together soldering them
together and using heat shrink rather
than electrical tape whichever method
you use sunshine or dehydrator to dry or
sand once it’s back to a dry crumbly
state it’s time to apply two more layers
of the silicon using the same methods
once again get our sand completely
soaked in the silicone mix it up really
well flatten it out and let it dry after
the third time soaking sand and letting
it dry out whether in the Sun or the
dehydrator your Sam should now be ready
for testing and playing in the water
I’ve gone ahead and made batches of our
hydrophobic sand in five different
colors
I’m excited to see how it looks
underwater
[Music]
before we start using any of these
hydrophobic sands underwater I do want
to take just a quick look at the
difference between the hydrophobic sand
that we’ve created in the original
untreated sand that it starts as here’s
our untreated sand and here is the
hydrophobic sand that we’ve made now
both of these are dry and pretty powdery
you can see that there are little bits
of differences I would say that the
color on our treated hydrophobic sand
looks a tiny bit more vibrant than our
untreated sand it’s not a big difference
but it’s a slight change in color
another difference is that the
hydrophobics and actually just feels
somewhat softer which means that
gathering up all the tens of thousands
of individual grains covered in the
silicon something is actually changing
to make it feel just a little bit spongy
or almost and though some people think
that sand is coarse and rough and
irritating and it gets everywhere but
the hydrophobic sand is a little less
well right here as a first test I have a
spoonful of our red hydrophobics and I’m
just gonna dip that down under the water
not even pour it but just dip it down
and then pull it back up look at that
still just powder on top pour some of
this down into the water see what
guys this stuff is a ton of fun it
really does a pretty good job being
hydrophobic this sand has now been down
in here for like 15-20 minutes kind of
thing and when I pull it out it’s still
like dry powdery sand on top now
eventually this can get water absorbed
into it and if that happens all you need
to do is spread it out let it dry again
and it’s back to being good as new
although in our case we’ve now got
instead of five different colors of sand
we’ve got five colors of sand all mixed
together and you know if you like that
look great otherwise you’ll want to keep
your different colors separated in the
water if you ever want them to stay
separate once they’re mixed there’s no
unmixing them although I think I signed
up sort of that old Batman
Adam West Batman he had a machine
designed to separate out different
colors of powders if we can get one of
those and this will be all settled
colored sand and some silicone
waterproofing spray which is sold with
shoes in most department stores it’s
just designed for spraying on and then
he makes your shoes waterproof but in
this case we’re doing the same thing
with sand and it’s pretty fun to play
with you can make some cool like
underwater sand castles and stuff and it
just forms these weird little structures
and then stays dry when you pull it out
in it’s just a powder again so much fun
it is coarse and rough and irritating
like drawing my arm up it’s just like
under the paper towel so it’s like
hitting my arm with sandpaper and akin
was right guys that’s not all we’ve got
more for you see that box up at the top
will transport you directly to our last
video and of course you should go check
that out the box at the bottom will show
you what YouTube thinks you need to be
watching next there’s balm here in the
middle will subscribe you to the channel
that’s how you don’t miss any of the
videos don’t forget to ring that Bell
and we’ll see you the next one talk to you then
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