hey guys welcome back Ricky here this
knife is the Matsumoto KS which belongs
to a friend of mine and he's been using
it for about six months now and the
reason I have it here is because I
helped him finish the handle okay give
it a nice waterproofing finish on it and
also he's complained about the carbons
characteristic that is developing this
patina you know and it's really like
rust and it got to the point where he is
tired of rubbing it every you know a
couple of weeks or so and the patina is
getting tougher and tougher to remove so
that's something that you guys should
know all Carbon knives will develop a
patina of some sort especially the
longer you have it the stronger the
patina will be now there are a few ways
that you can offset that but there is no
way to actually completely avoid having
a patina develop and so what I like to
do is I will show you a couple methods
you can use sandpaper which is a very
popular method 1,000 grit met 1,000 grit
2,000 grit sandpaper you can use the for
not steel wool which is a little messy
and not not very effective once the
patina has really set in and you can
also use a rust and patina eraser which
is in my opinion the most effective
cleanest easiest way to do it and
there's also a chemical formula you can
buy it's called sodium bicarbonate which
I actually will show you guys and that
strategy is only good for a very light
patina if you developed a really heavy
patina they saw this sodium bicarbonate
really won't do a whole lot for you it
will take off only the first couple
layers of the patina but anything that
has a really deep embedded patina you
need some sort of rust eraser or really
you know grind down the the patina with
really fine sandpaper or the steel wool
so I'm going to show you guys how that
all how all the different methods look
and how they work and you can decide for
yourself which one is best for you okay
guys so here is my Massimo toe and the
first technique that I'll show you is
the steel wool now it's still wool you
want to make sure that the knife and the
steel wool is dry because if you use it
in water or you have water here it will
actually create a rush and you cannot
reuse this and these are typically you
can be use these a couple of times and
you just want to rub them dry and you
want to rub it with the grain so along
the polish and grain of the knife okay
you can do that but as you can see it
really only takes off the first very
very top layer of the patina which is
really not effective for the long term
and also the other drawback you get is
all these dust flakes and or metallic
flakes which is really bad to inhale and
if you have children around at home I do
not recommend going with a steel wool
application okay so it takes a lot of
time because you have to really press in
in one area of the knife and so as you
can see there that is taking off you
know some of the patina but not a lot
again it's not going to be able to
remove the deep deep patina is that
knives that have been used for many
months or a year will develop okay so
here is the next solution you can use
this again here is the chemical solution
it's made by Armand Hammer but you can
buy this really anyone it's sodium
bicarbonate that's the only ingredient
sodium sodium bicarbonate and it's not
baking powder or baking soda so don't
miss taking this with baking soda this
whole box here is a big big box it only
cost like 2 bucks at here you can go to
Target or something guys three pounds
and all all you do is you can get a wet
rag or in the a soda rag around the home
you can wet the rag
and what you can do is you can apply a
bit of it onto the rag and you go to
your knife and you rub actually before I
continue always find some sort of
platform for you to rest your knife on
do not you know do not use the knife on
a flat bench because then you actually
can risk bending the knife by pushing on
the knife and then only the tip in the
handle is touching the table so you want
a nice stable platform to rest your
knife on okay and you want to have a
firm grip on your knife all right so you
can have a little bit of water to the
knife area that you're polishing and you
have your sodium bicarbonate and you
simply rub and be careful don't rub into
the knife you will lose a finger that
way or definitely loose lose a lot of
skin
all right so I'll start there so as you
can see it does a pretty good job of
removing the patina it has you know it
does leave a very very fine scratch
pattern which is not really a big deal
but this is a good solution because once
it touches water it really just
dissolves so it's very easy to clean and
it's pretty easy to use it leaves a
really nice also kind of a polished
surface there so so that's the next
solution I recommend and the other
solution which is not quite as effective
as this especially if you want to do it
on a weekly basis is these are sheets
these are microfilm sheets by 3m now
these are really good for for a lot of
things for sanding but these are like in
terms of rating they don't they don't
even rate these by RIT anymore these are
by micron so this here is the courses
that comes in the package and I think
it's like a thousand grit or like you
know 1,000 or 2,000 grit and this is an
X finer which is like 4000 grit and it
goes all the way up to this guy which is
I think measured into like the four
micron so extremely this gives you a
mirror polish and these are pretty
closely mirror polishes so what I do is
I cut them up into little squares all
rectangles and let's go with this guy
here so this is wet or dry I just put
them on this plastic sheet just so they
can store them so you can throw some
water onto the blade and again get a
good firm hold on the knife
you want to go with the grain
so I stopped there that should be enough
for you guys see the result okay so as
you can see it looks pretty good now it
just takes you know these films are kind
of expensive betting a package of four
sheets or six sheets is about twenty
bucks though it's kind of pricey but so
they're very it's it's more of a
specialty application you know I
wouldn't buy them strictly to remove
your patina for your knife unless you
have a lot of money to spend which is
fine too so as you can see that's like a
10 micron or 50 micron sheet and it does
a pretty good job it reveals pretty much
everything and you know it will bring
your knife back to a sheen back to the
original sheet and again you can go even
higher to it and give you a better
polish in that but that's only a few
seconds of rubbing and that works pretty
well it's a very acceptable option ok
the last solution I will show you now
you can buy this little ten dollar
eraser and it's a razor made for for
knives and carbon and steel so it's a
really really hey tool to have there's
two there's too much of this three sizes
other than three grade levels is a
coarse medium and fine the red one is a
fine and all you do is you wet your your
knife and you simply rub against a rough
with the the grain
this is a brand new racer so it's it's a
little hard okay so that's the eraser
and I should see it brings pretty much
is similar if not the same finish as the
sandpaper or the microfilm except is a
lot cheaper and it will last a long time
but it removes pretty much all of the
patina that the unwanted patina and
there you can use these once a week
which is a pretty good time frame once a
week is really more than adequate to
keep the patina off going sort of rust
from developing okay so hopefully you
guys found that helpful
these methods are obviously only four of
many and these are things that I have
experimented with and they have seemed
to work to some degree again my favorite
method so far is the rusty tracer it's
easy it's clean it's cheap its small its
portable and the second option I would
recommend if you guys were to do this
every day or every week um go with
sodium bicarbonate it's cheap $3 for
this container you keep it underneath
the sink and use it for a lot of
cleaning solutions or you know cleaning
applications in the kitchen and if you
have some money to spend you can go
ahead and buy the 3m microfilm these
guys come in packages of six sheets from
different grit ranges or micron ranges
and Sony I think they're like twenty
bucks for the six sheets that kind of
expensive and the sheet sizes are I
think eight by ten I cut them up because
I use them just for knife polishing and
so I cut them up this way next Orem and
so that's a decent option I would probe
stay away from the
steel wool because it's dirty it's messy
and something not you you don't want to
use if there are kids around the home so
I would leave that alone and yeah
hopefully you guys found that helpful
and thank you for watching and if you
guys didn't like it you know where the
thumbs down button is if you did like
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will catch you guys in the next video