Cement for metal casting?

[@unobianconero]

cement and motor oil sand is used for many years for silversmith sand casting traditionally here in Iran. the perfect ratio (in volume) is 1 oil to 5 cement, don't forget the sieve two or three times the cement before mixing. mix them slowly and gently just by hand for couple of minutes. you can use it over and over again without any problem.

[@otterprincebacon6500]

I really appreciate your using sodium silicate and sand as a molding media. Its an old , time and tried recipe, you can do so much with it, cores too good luck and carry on

[@pixelpatter01]

I was told over 30 years ago that silver jewelry craftsman in the south west US used cement powder and used motor oil. I assumed it was because it was available, but the finish is smooth.

[@electro1622]

Hi MP Dragon.. Professionally made investment material is gypsum (plaster) based. It also has quartz and cristobalite for temperature resistance... If you cast metals below 1100c you can use jewelry investment..it is cheap enough and gives a really smooth casting surface...if you cast higher temps ( greater than 1200c, eg. Iron)you can mix in extra quartz or sand to the mix as plaster breaks down at those temps...the best advice for making your own investment is copy the recipe of professional investments..they all tell you what they contain, they don't tell you the ratios but you can find that out. If you use the lost wax technique with these investments the quality of the casting and surface finish is so far ahead of sand casting it is unbelievable..

[@jovanlazarevic382]

I have used this method, If you are going to do it, you need a lot of ventilation if you dont want shrinkage.. Cuz apparently, cement doesn't ventilate at all.. Other then that after 3rd pour I got good results, I needed precise dimension, and it worked quite well. Thank you A lot, Spasiba borsoi..

[@puits-de-science]

From my understanding, adding ethanol, methanol or isopropyl alcohol to the cement mixture would work as a catalyzer to stiffen the material. And 2 stroke engine oil would create much less smoke and odor. I will try it soon because until now I was using only green sand (water based).

[@loganhadley2339]

Hey I know this comment was a long time ago, but I’m down the rabbit hole and was wondering if you ever tested your theory. Did it work?

[@graphixkillzzz]

I don't give af about the smoke or how difficult it is, that cement casting was better looking than greensand. once I find the right consistency, I'm using that for all my castings from now on.

[@notyouraveragegoldenpotato]

I've made a bunch of different batches/grades of greensand. Some with sodium silicate and basically silica flour sand. You can get insanely good surface finishes but you have to have the right starting materials. The finer it is the bigger PITA it is to mull properly. I just did a mold and casting today that doesn't look like it was cast😂 I tried the portland cement/oil and it was very odd. Haven't cast with it yet I just made a test batch.. maybe I'll have to revisit it after seeing this

[@skyhawk551]

i think what made the mold smoother was particle size, if you grounded the sand so it was a powder with very small particle size you would get the same results.

[@mpdragon6295]

I have been looking how to make a ball mill so I can get fine sand

[@dekurvajo]

you dont need a mill, just get some screen and do the screening in 2 steps. there will be enough fine grit over there. just make sure the sand is 100% dry otherwise you never gonna finish it. i can not tell the specific number, 1st is a rough screening, second is for the finest. so its 2 different grits for the screens. Its also depends on you what size you like, but the the 2 step is useful if you want to make more than just 10 litres. There is an another good source of a very good material, those guys who working with ceramic tiles or granite and they cut the tiles, they have a lot of very fine powder (mostly soaking in water, but never mind) More than likely they will give it to you free.

[@yanfik4257]

Great attempt, interesting outcome. Thanks!

[@GRIPBEAST69]

Bro, gratz on ur content, the music now its just perfect and ur vlog channel rocks too. The best of luck for all ur projects, will keep on waiting for ur videos. Cheers from argentina

[@at9456]

i think you used too much oil try doing it with less, thats probably why it kept sticking to the other half of the mold and why it produced that much smoke

[@AlumiTube]

Oil can also be expensive i use bought sand rady to go for my videos...

[@whtwolf100]

use used engine oil make sure you filter it first though

[@dwightgordon803]

I am going to start metal casting soon, and this comment caught my attention. Have you actually done this with used oil, and how did it turn out?

[@AS-ug2vq]

I use used engine oil I buy it for 10 center a liter so 5 liter is 50 cents.

[@thomasheisler]

nice video, never thought or heard of this method, thanks

[@techytools5668]

can we,use this,again and store for future use

[@pedroernestobraga]

Love it this idea, here in brazil is hard find comercial green sand and we use kitty sand with como river sand to do our molds

[@lojadasmatrizes1447]

Amigo , procure a cadiminas em contagem

[@houndjr7929]

I have heard of cement being used as facing sand before but never tried it because you will end up eventually with hard cement lumps in your greensand.

[@pietruspulchrafalco8745]

Nice. I wonder how well tile grout would work

[@michietn5391]

Time to experiment with combos?

[@nicholasb6781]

please make a video on the preferred type of sand you use for casting

[@benjaminbuljevic7977]

i really liked the editing on this video!

[@AlumiTube]

Much better yes

[@AlumiTube]

Hey MP Dragon i like your videos, do you want to feature channels with my channel?

[@teejaycabatingan2016]

can you try to pour molten aluminum on water hardened cement mold ? please want to know what will happen

[@jlssculpturedesign8140]

Hello and thank you for your video share. Would it be possible to use a cement mixture as a permanent mould ie refactory cement used for pizza oven ?

[@HandleS-o3z]

Why did it keep breaking up

[@bearup1612]

Thanks for the video

[@rustynutz4493]

finely ground (for detail around object) Bentonite clay (some of the cheapest cat litter) and a small amount of sodium sylicate works better than both the sand and the portland cement. Smokeless too! What gas(s) is/are being used for that simple furnace?

[@sam111880]

Cool, curious of a few things. First what green sand do you uses/prefer , i have seen people using fine sand with oil mixed in , some with playsand mixed with kitty litter...etc. Or do you just uses Aluminum oxide sandblasting sand...? Would like to see a video of going thru all the different types of sandcasting materials that work and rating there quality. As there is so many options of making your own sandcasting sands out there. I am like stuck in figuring out which one to choose and don't have the ability or resources to try them all currently. I would imagine most feel similar that they just like to know how to make the best green sand or the best options to go with. (And not be let down by all the hack based mixtures that are hard to work with and/or not good results with them)

[@peterweller8583]

Nice science study.

[@jovanlazarevic382]

I'll be using this same method to cast some aluminium parts, cuz it's all I got at home, and i wantid fast and cheap heh :) thanks for instructions

[@markmark2222]

What is that white white colour powder?

[@trevorm7013]

Regular sand vs concrete. Its so hard to decide which ones better

[@Togglism]

What mix do you normally use? does anyone know?

[@ANTHONYWMITCHELL]

I’m wondering if you wet the concrete after you make the form will it be a permanent reusable mold

[@davidrabin7287]

I think you should do the opposite first pour the oil and then pour into its slowly the cement. that way you will not have that much dust and you will not have that much problem because it will be absorbed into the oil and I think the system is good maybe you should try to improve it but it does look to me like a very good way

[@terry4144]

would a weak sand and cement mix work?

[@rondelby2482]

I use Rural king Brand play sand which is more fine than most.

[@josmede1741]

Can make permanent mold/cast from cement ?????

[@a.ia.hassan5459]

Does the cement mold can using more times or one time?

[@dwightgordon803]

Looked for this video specifically because you referenced it in the first video I watched of yours. LOVE the result you get. Full synthetic is a bit pricey, though. Do you suppose a synthetic blend would be just as good? Or even conventional?

[@dwightgordon803]

Also -- you said in a comment that you are using the same crucible now as you were when you started casting. What is it, where did you get it, and can you do a video on care and cleaning of your crucible?

[@charlesmorris100]

Run taracatta pots in ball mill untiil its a powder mix with mineral oil.

[@CanadianARMY1000]

Why not use normal greensand? or are you just testing concrete and oil vs sodium silicate and sand.

[@mpdragon6295]

I was just curious

[@DenKonZenith]

I bet the difference in quality is due to the granular size difference between concrete and sand. If you could find a super fine grain sand, it might give you the same quality without the oil smoke.

[@xaviusballard2672]

Do you know of any better casting materials?

[@puits-de-science]

The other point is why not use oil based mold on one part of the mold, for details, and water based mold on the other side, for easy degassing? Water based is less dense and lets vapors go out easily.

[@pai68]

Hi, Best Regards from Germany, Could you please explain what is "sodium silicate" ? You get it as fluid ? It is difficult to "harden" it with "CO2". How much sand and how much fluid you mix together. best Regards Per

[@mpdragon6295]

I buy it at the hardware store and it is written that it is a additive for concrete or as a glue. when adding co2 it hardens immediately. I mix it by eye and harden a sample in my hand with co2 if it is crumbling I add more sodium silicate, if it is to wet I add more sand

[@sand2698]

Is hardenned cement can be used?

[@MizzConchi]

What kind of metal are you using?

[@markfryer9880]

Hi MP Dragon, an interesting video, well worth the experimentation time, but I agree with your conclusion, too messy and smokey. I do have a suggestion, try a combination experiment using cement and sodium silicate as we know the sodium silicate method is much cleaner, so we may end up with the best of both worlds. You could also check out bagged "Builder's Sand" as that has a much higher [finer] mesh number than "play sand". I have also been thinking about "brickies sand" for use in greensand casting as that already has the approximately correct sand percentage of clay in it. Mark

[@MrAndrew990]

can you use old oil?

[@EricSmith-lj7ln]

Nuclear_ Nube no you use a extremely high temp oil not that a typical car would use

[@artist_jeonjinwoo]

Could you tell me what the liquid is in the sand?

[@eugenetan7323]

Hello you should try adding sand to strengthen the mix :)

[@sam111880]

From what i see cement casting yields pretty good results but is it a one shot mold or multiple casts ? Also does the cement based cast harden up or is it still recyclable / reusable like the traditional bentonite clay based green sand (aka just have to throw away the burnt bentonite clay part. Jewelry makers uses this method of sand casting with bentonite clay based sands. There sands just look more redish /brown probably from the type of bentonite clay used. Maybe a terracotta type or a earthware type...

[@odeltarkhan3033]

It is recyclable cement doesn't not bond with oil. The oil just make the cement more shapeable and fly less

[@nhanson8477]

Why don't U use water

[@barrymayson2492]

Hi cement powder will absorb water over time not what you want in a mould.

[@deepnessdoomed168]

Barry Mayson Not real as cement is almost soaked in oil but u just need to re-oil it more often .

[@jasonedden6473]

What ration of sand and sodium silicate do you use? I use Bentonite and sand at at ratio of 9-1 then add water until desired consistency is achieved to hold together. Bentonite if what clumping cat litter is made from, so I just use a bag of it and pulverise it in to dust, very cheep and cost effective as you can re use over and over just by adding water

[@mpdragon6295]

I made that recipe when I started metal casing, but when you get to patterns as big as I make it becomes very difficult to make the mold. I mix it by eye and harden a sample in my hand with co2 if it is crumbling I add more sodium silicate, if it is to wet I add more sand

[@timkors1346]

why did you not put the stuff you use for the sand in the cement? also i love your videos a lot!

[@4x4convoy]

tim kors pretty sure the stuff he puts in freezes the sand so it gets hard

[@timkors1346]

4x4convoy yeah but he needs to try to mix that stuff with the cement maybe it will work?

[@nils1953]

No. I think the gas is CO2, atleast thats something that some people use. That will not harden motoroil.

[@timkors1346]

oh i mean mixing the sodium silicate with cement and then use Co2 to harden it if possible

[@nils1953]

tim kors ahh now I get it! yeah that actually sounds pretty reasonable!

[@MikeOxolong]

It would be great, if you make vids more often.

[@nicholastaylor7256]

Watch his vlog channel. It's just as good

[@thesuperghost]

Tazer He's busy with fixing his workshop and cant upload as much right now.

[@ViperLPs]

whats his vlog channel name ?

[@yuqiteoh9056]

The Ferrarist mp dragon vlog

[@nh4759]

Next we will be mixing uranium dust to cast our next project. Breakfast bowls. 😅

[@khaledsakr7536]

can i use cooking oil

[@AlumiTube]

i think every oil ;)

[@hanoroam2259]

Can we use any type of oil?

[@SatisfyingNerd]

wasn't it because you mixed it with oil?

[@djdjalma123d]

I think there is too much oil on the mix! Great vids like it alot!

[@Billthebott]

very cool,

[@mattrkfilms]

cool vid

[@minbannister3625]

the flask looked too large in area for the depth of drag and cope. the oiled cement dust couldn't support its own weight at that depth. my 2 cents

[@watahyahknow]

have you tried soldum silicate with cement yet the divverence in surface between the sand and the cement could allso be caused by the sand being courser using the sodium silicate should make the cement vehave somewat the same way as the sand with the smoother casting without the smoke the oil gives off

[@jagboy69]

Interesting.....Instead of synthetic motor oil, I would try cheap vegetable or peanut oil. 1/10 the cost of synthetic motor oil. This could be a great alternative to petrobond or greensand.

[@odeltarkhan3033]

Any type of oil will work just be careful with the mix ratio

[@axnbjsbdudbydvydubu9355]

next time do a small sample then you can be sure of the amount need to be used on a larger scale

[@mxmkdch]

MP Dragon are you from Latvia?

[@cheetobandido8124]

informative 👍😎👍

[@stevez2158]

Try making an aluminum flail.

[@axnbjsbdudbydvydubu9355]

sodium selicate is the same as table salt ?

[@otterprincebacon6500]

sodium chloride is table salt

[@fehmisen2603]

Make more video Pls I like your videos .D

[@brianthornton3085]

I would stick with the sand and sodium silicate mixture

[@davidnastor4081]

Nice! I have one question,what do you think about useing used motoroil ? As you may know motoroil is preaty expensive and i dont really have much money to use

[@mpdragon6295]

I think used oil would work, basically it is the same oil

[@davidnastor4081]

Thanks a lot!

[@davidnastor4081]

Thanks for the advice!

[@whtwolf100]

make sure you filter it first, and don't use any oil that has gotten other fluids into it.

[@Achbar]

Interesting

[@heisamhaditv8495]

hello

[@Marcosuel0089]

cara faz uma forma de fazer chumbos para espingarda.

[@stevez2158]

Hey im here

[@benjamaster7]

I half expected the cement to explode

[@kingsonproduction6759]

Hey bro, What kind of cement did u use for the casting ?

[@tocov]

Seems like a lot more trouble for very little gain.

[@Dio_Brando_21_17]

Русский ? Акцент уж сильно явный)) Или специально для антуража произношение ломаешь?

[@Ra1276]

Story of my life

[@juanlaf3513]

carbón, arena y agua ¯\_(ツ)_/¯

[@ivanbezdomny7646]

Popracuj nad angielskim,jest nieźle..formy do dupy..weź się może za uprawę kapusty

[@drivernephi2115]

seems pretty sketch

[@heisamhaditv8495]

helli

[@jakekaim03]

9th

[@JamesUnderwood-k6u]

Please cut the bad music!

[@AddictedtoProjects]

Humans are incredibly good at ignoring history and the experience gathered by previous generations. There's a bunch of very good reasons why the casting industry has settled on green sand as material of choice. And they've only been doing this for a couple of hundred years.... Perhaps you should get a good book about casting and read up on why they do what they do.

[@thijsgruijters8389]

Maybe this guy is just experimenting for fun

[@richardmorin6968]

You are right but then synthetic oil was not available.. Maybe it is worth trying

[@adirompin1727]

Read the description please

[@bluefernlove]

Yes, but there's always room for improvement and experimentation is the key to invention, so...

[@jasminerose2547]

We need to see as well how something fails.

[@larenssx2710]

first

[@janbojarski004425]

onethousandandninetythird