Didn't realize you could do all this with cottage cheese lol. Your channel feels like a never ending source of interesting information.

@ThinkingandTinkering

8 жыл бұрын

+Chaitanya Bhave lol - cheers mate

Just bought your book on casein, a superb wealth of information! Thank you! So much left to be done with this material! And it has been under our noses for SOoo long;)

@ThinkingandTinkering

9 жыл бұрын

dedlunch i know i am just amazed nothing more has been done with this

I've been researching and puzzling over making casting molds for a small homebrew video game cartridge producton run I plan to make. This looks like it would be very much worth my time to experiment with, especially since I already have hydrochloric acid on hand for etching PCB's!

@ThinkingandTinkering

8 жыл бұрын

go fo it mate

I totally agree, casein is a very interesting material, thank you for all your videos and all your question answering:) your hard work is greatly appreciated my friend

Sir is there any rubber soluble sulphur in liquid state? We want to mix the liquid rubber soluble sulphur with our latex formula to make it more bouncy like a latex mattress or cushion. Awaiting your reply. Thanks!

hello ! i was just wondering something, i've heard about vulcanization with sulphur but it's done with heat in your example you just added sulphur to the cold mixture and it worked, what's the chemistry behind that ? if that could work with normal glue i can make my glues more elastic ! thanks.

Nice vids :) Might I ask what the final product is in the rubber form? Also, how does this change the casein melting point? I see a generic casein melting point of 280c on the net, is this fairly average? Thanks very much!

I know this is very old I am revisiting it and I've had some success and some of the areas. Also they finally sell pure casein in the US. I was very surprised to find it after all the looking I did before but it's become popular apparently. The thing is when we start out with a product that is already in an appropriate state to dissolve into water do we really want to use a alkaline solution? I was sitting here and your video randomly popped up and it made me think. It's already appropriate pH to go into solution is that's how we would drink it as a bodybuilder. If they left it acidic it would start clumping out by itself so it must be a Alkali already? I'm going to adjust the pH of some of the German recipes to see if that improves things

Would this be fish friendly? I'm looking for alternatives to soft plastic lures but most of the recipes for DIY bioplastic lures will dissolve in water after casting a few times. I don't want to be leaving unnecessary plastic waste in waterways so something that is more sustainable is the goal.

found that sodium hydroxide dissolves sulfur faster, and heat also must be applied. another method is: mix water+sodium+sulfur, and heat till all sulfur melted. then add the casein. still testing fillers to increase the output, starch wont do anygood, marble dust, graphite or active carbon works well. any inputs on the fillers would save me some testing time :) as for dry time, any ideas to shorten it?

Hi Rob! I bought a bag of 100% casein. As it turns out it is mycelium casein protein. You mention calcium caseinate is what you are using. I have read a few articles on the difference but it seems mycelium casein is also a type of calcium caseinate, albeit a smaller molecule from what I can make out. I have made my mixture with your specs of 10 Grams of Potassium Hydroxide and 200 ml of de ionized water and 100 grams of protein. However I can't seem to get my mixture homogeneous at all, and no matter how much i stir it forms clumps of what seems to be an insoluble material! I have tried adding extra potassium hydroxide but it still doesn't dissolve. Am I looking at two variants of protein in the solution? Whatever is dissolved also seems to form a plastic of sorts. Hoping you can help clarify...

Awesome info! Thanks! I noticed a french company RELTEX making sneaker soles from this. I want to give it a try and see what i come up with. LoL

Bed pads for incontinence are expensive. Do you think this is sturdy enough to paint on the back of a small quilt to use on a bed and tolerate washing and drying?

So I've tried this 3 or 4 times and it always ends up turning is hard as a rock in the end. It's not a complicated recipe I do not know what the hell I'm doing wrong but that hockey puck I poured the excess into a jar lid probably the same as you and it was rubber for one day and then it turned hard as a rock literally as hard as a rock. Ever really really taking the time to do this right I even distilled my distilled water to make sure there wasn't anything in it. And yes I use calcium caseinate

@therogerwilco

3 жыл бұрын

Deionized water, not the same as distilled :P Not sure what else may come in the distilled... I think it's usually high in nitrates? I think Robert may have a better idea though.

@ClownWhisper

3 жыл бұрын

@@therogerwilco yes technically deionized water is more pure but for the sake of a casing recipe it shouldn't matter as long as it's distilled and what are you talking about nitrates there's no nitrates in water

Nice video !! I found a casein mixture with only 80 % caseinate on it. The rest is chocolate, sugar and other food ingredients. It's a rhetoric question, yet I ought to ask: Would the performance of the final rubber be compromised too much? Should I just compensate the "impurity" of the caseinate by adjusting and adding more casein-food to your formula? I hope the other ingredients do not burn much with the KOH... Thanks once more for any comments !!!

Morning Robert. I've never seen this before today but in my lime plastering work casein is used in the final coat of a lime wash. I don't use it myself because a lime wall should be able to 'breath' and adding a rubberised solution to a paint surely would then make it non-porous which defeats the object of using lime does it not?

Have a quick question..If I want to make thin film using starch in lab , i guess it is easy ..But would it be possible to take it to commercial level? How to do solution casting on commercial scale.

I love your videos! I have 2 doubts! Does it work with mineral water? And also: should I add formalheyde in case I don't want it to go moldy? thanks a lot, Robert!! you are amazing! :)

Is this the same process you’d follow to make a casein based glue?

Hello Is calcium caseinate? Can you crosslink it with boric acid like PVA? Than become water insoluble? May be it can be painted on a non-woven and become a calcium ion condutive membrane? Sorry for many questions. May be someone will answer for you. Is for the progress of humanity!

@ThinkingandTinkering

7 жыл бұрын

i don't think boric acid will work as a cross linking agent - but the idea is interesting - maybe tannic acid?

Thank you so much for this video! However, may Sulphur be substituted for anything? I appreciate the response :)

@ThinkingandTinkering

7 жыл бұрын

dunno mate sorry - you will have to experiment and read

@elephystry

7 жыл бұрын

Thanks for your time

What kind of casein sodium or calcium? Would I be able to use whey protein instead of casein? Will sodium hydroxide work instead of the potassium? Is washing soda a substitute for the hydroxide? Sorry for all the questions, I just want to make sure I am buying the right products to make the rubber. Thank you for your time.

@ThinkingandTinkering

8 жыл бұрын

+David Kern best to use casein - rennet casein works well. No you can't use whey. Sodium hydroxide is fine as is washing soda which is sodium carbonate - just about any alkali will do as will just about any acid - the more you deviate though the more you will be experimenting - which i think is cool

@davidkern9849

8 жыл бұрын

Robert Murray-Smith Thank you so much. I love your videos. I will be using the sodium carbonate instead of the hydroxide. Would it be the same amount (10 grams) to the 200 ml water?

@ThinkingandTinkering

8 жыл бұрын

+David Kern probably a little more mate - it's the pH that matters - but you will have to experiment i am afraid

hi, Robert. I followed your recipe exactly, but when I put 100 grams of cassein into the solution, it become lumpy so hard to mix. .And finally I put sulfur in it and it became completely yellowish. Your output is completely different. Can you teach me why? also, And is there no way to separate the casein plastic that is dried on the fabric from the fabric?

@aimeepowell8449

5 жыл бұрын

My son is dealing with the same issue. Poor kid is trying to resolve it before his science fair.

Hello Robert, I just discovered your channel. Really interessting. Thx for sharing. For this particular video "Rubber Made From Milk", I don't understand how the casein is reticulated - not sure it is the proper term - since you don't add tannic acid or formaldheyde. Is the sulfur reticulating the casein and making it water resistant? Pretty sure you know all this but... if I can help... :) here is an idea you could do moisture absorption test, that will produce very reliable insights on the waterproofing proprities of your material. -Weight a sample -place it in a oven with a cup of water -heat up to 40°C, for 12h -mesure the sample again so we know how much water got in

@elephystry

7 жыл бұрын

It was a long time ago since I last watched this video. I just learned that sulfur industrially is added to rubber to vulcanize it, because it will form crosslinks between the polymers. Incidentally, that's why I'm here now. Thoisoi made a lovely video on sulfur.

@ThinkingandTinkering

7 жыл бұрын

awesome cheers mate

I would like a claylike casein formulation that could be 3d printed.

I would really like to know the properties of casein in application for cookware, what temperatures can the casein handle in heat? can casein handle temperatures at 400 Degrees Fahrenheit or 204 Celsius? if not what is its limit?

@ThinkingandTinkering

8 жыл бұрын

+Joshua Tomlin do a little experimentation mate - it's the easiest way to answer your questions - plus you will get a real 'feel' for the material

@FloridaJt

8 жыл бұрын

Thank you much sorry on the slow response been busy in the kitchen experimenting and what not

@ThinkingandTinkering

8 жыл бұрын

+Joshua Tomlin no worries mate - but you learn a lot from 'doing'

Hi, can I use glycerine instead of yellow sulfur? Thanks

Sorry, more questions here... Have you played with the rubber long enough to notice how durable it is? Your thoughts on using the rubber for moulds? Which key ingredient is responsible for the hardness of the rubber? Again, thanks for another week of inspiring videos.

@ThinkingandTinkering

9 жыл бұрын

the sulphur - but i can only encourage you to experiment mate - I will use this for my purposes but they don't include casting - that you will have to test for yourself

@K9JT

9 жыл бұрын

Thanks! I don't think I'll be doing these experiments myself though, not my field of comfort. But I will do some academic research. I'm just a curious mind on this subject, and it's very interesting to see your approach.

@ThinkingandTinkering

9 жыл бұрын

K9JT cheers mate - it's like anything - i have been doing this for years and have a degree of confidence and knowledge about it that i don't notice most of the time - but that is true of everything and everyone

Hello i wonder its usable in salt water thanks again robert

Hello Robert. I would now if that stuff is flammable. Thank you.

Could you somehow do this with breast milk? I am trying to figure out how to make keepsakes for moms that won't yellow

Brilliant...just brilliant....and so good for the down to the salt of the earth folks.

@ThinkingandTinkering

9 жыл бұрын

glad you like it - i thought it was pretty interesting too

Hey, I've tried mucking around with this, I made the casein, made solution alkali and re precipitated the casein out again and then added boiling water and tried clumping it together, but I can't seem to mold it right, it forms these cracks on the surface, when it dries it's really hard though

@ThinkingandTinkering

8 жыл бұрын

+Mike Ehrmantraut add a bit of glycerine mate

@suckinDiesel44

8 жыл бұрын

+Robert Murray-Smith will do, cheers

@ThinkingandTinkering

8 жыл бұрын

+Mike Ehrmantraut cool mate

@suckinDiesel44

8 жыл бұрын

Robert Murray-Smith actually I'm not too sure if it's because I'm not clumping it under hot water enough, how do you know when that's done?

@ThinkingandTinkering

8 жыл бұрын

+Mike Ehrmantraut it's a natural material mate - so it varies - you can only experiment

If you leave the sulphur out, it will harden, correct? I will be buying your book on the subject tomorrow:)

@ThinkingandTinkering

9 жыл бұрын

dedlunch yes it will - personally i think casein is well worth a look at as a renewable bioplastic - lots to discover

@mrsolar3721

7 жыл бұрын

Robert Murray-Smith well I have question what is its shelf life or will it harden up in a sealed jar ?

A bag size back here in the states would cost about $56 from what I've seen. I have seen some cheaper about half that price which would be more in line with the exchange I believe but it's always flavored LOL

@ThinkingandTinkering

8 жыл бұрын

+Clown Whisper lol - you need to shop around

@ClownWhisper

8 жыл бұрын

+Robert Murray-Smith, I know it's ridiculous even on eBay 28 to 30% ammonia hydroxide is around $50 a gallon I can buy a thousand milliliters for $15 USD butt then you're paying for shipping is well. I've been making my own but it's a damn pain in the ass I don't know if you've ever synthesized ammonia hydroxide but it's not easy at room temperature to get 30% in any decent volume. You say you got 35% ammonia solution from the hardware store? That's amazing I would be so happy! I was under the impression that 30% is as strong as you can get at room temperature. it's funny that you posted this just now because I was sitting here looking around on the internet at suppliers like vwr insigma and they're ridiculously expensive reagent grade of course but I'm running out of options I really like using the ammonia for this casein. I guess I'll keep on synthesizing it or distilling 10%

@ClownWhisper

8 жыл бұрын

+Robert Murray-Smith and having written all that last reply I realized we were talking about the casein powder not the ammonia LOL yeah I remember now yes it's very expensive here I'll have to look on eBay

@ThinkingandTinkering

8 жыл бұрын

+Clown Whisper lol - no worries mate

@ClownWhisper

8 жыл бұрын

+Robert Murray-Smith i found some but it was still very very expensive. 36 dollars for 2.5kg im trying this rubber now. im glad I have an overhead stiring motor!!!! omg this is going to be a trick getting all of this casein into 200ml!!!! I cant imagine doing this by hand

Is there an alternative to sulfur

Great. I found Potassium hydroxide readily available on ebay.

@ThinkingandTinkering

9 жыл бұрын

it's used for making soap mate - easy to get hold of - you can use sodium hydroxide too (drain cleaner) or slaked lime (calcium hydroxide) - KOH is best though

Add Zircon and you will have a puncture resistant ionic-membrane for alkaline batteries, fuel cell and electro-dialysis cell. Coat it on to a non-woven substrate.

@ThinkingandTinkering

9 жыл бұрын

you have done this?

@leonardjanus7599

9 жыл бұрын

Robert Murray-Smith With SBR latex. I think your rubber could replace SBR for this use... and is "green".

@ThinkingandTinkering

9 жыл бұрын

Leonard Janus absolutely - how much and what kind of zircon?

@leonardjanus7599

9 жыл бұрын

Robert Murray-Smith 10 to 50% wt.... with SBR. I don't know with casein rubber. I will try.

@ThinkingandTinkering

9 жыл бұрын

Leonard Janus cheers mate

Could I use potassium hydroxide solution instead of powder? Ps you videos blow my tiny little mind!!!!

@robertpoynton9923

9 жыл бұрын

Oops I meant sodium hydroxide. Put my error down to doing night shift.

@ThinkingandTinkering

9 жыл бұрын

Robert Poynton lol - no worries mate and yes you can use sodium hydroxide

@robertpoynton9923

9 жыл бұрын

Thanks mate it's a solution of 30-60% I think it might be easier to find some powder so I can get the quintette right. Could I suggest maybe putting a list of ingredients on the comments of your videos it would help me so it may help other people. Also just a suggestion the chemicals that you use let us know what there common name is ie. caustic. Is would also help people find them. Just a suggestion. You are very entertaining.

@ThinkingandTinkering

9 жыл бұрын

Robert Poynton good suggestion mate - i will try to do it from now on

Now that's cool

@ThinkingandTinkering

9 жыл бұрын

lol - cheers mate

3:34 "You can use it like a latex rubber" But can I use it with oil-based lubricants?

@ThinkingandTinkering

9 жыл бұрын

I have no idea - I don't actually know what you mean - if you mean as a seal - I imagine so as it is water based - but you are probably going to have to experiment if you want the definitive answer

@user-py9cy1sy9u

9 жыл бұрын

Robert Murray-Smith No, think more dirty :D

@ThinkingandTinkering

9 жыл бұрын

wwwelkam lol - then definitely experiment lol

@abritishguy8351

9 жыл бұрын

Robert Murray-Smith I was intrigued about the same thing but for a different reason, you wouldn't happen to know the answer though?

@ThinkingandTinkering

9 жыл бұрын

a british guy no i am sorry - it should be - but you would have to experiment to be sure

What is the third component please ?

@ThinkingandTinkering

7 жыл бұрын

huh?

@elephystry

7 жыл бұрын

Mido Monim Potassium Hydroxide, Calcium Caseate, Sulfur, and de-ionized water (is that synonymous with distilled??) was the full recipe, yes?

would someone tell me what de-ionixed water is

@ThinkingandTinkering

9 жыл бұрын

de- ionised water

@aslimlines3069

9 жыл бұрын

Robert Murray-Smith OK I didn't realize I was asking such a complicated question , but if I understand correctly it is a bit more technical than a simple answer,

@Unifrog_

9 жыл бұрын

aslimline S en.wikipedia.org/wiki/Purified_water#Deionization

Can You Use Goats Milk?

@ThinkingandTinkering

9 жыл бұрын

Slime PlaysMC it's the casein we are using - so i guess so but don't really know

can you use NaOH insted of KOH

@ThinkingandTinkering

8 жыл бұрын

+Hugo Zandberg yes - you can use washing soda if you like

@ThinkingandTinkering

8 жыл бұрын

+Hugo Zandberg but this is the same question as Colin's - please read the comments for further discussion of this

Would NaOH do instead of KOH?

@ThinkingandTinkering

8 жыл бұрын

+Colin Hammill give it a go and see

@hammysmad

8 жыл бұрын

Robert Murray-Smith Cheers bos. I also started messing with guar gum as an emulsion... very hard to work with as it only takes about a level teaspoon in 250 ml of water to end up with something reasonable. First attempt I used about 50 grams to start with and it went like concrete LOL. I still don`t know how it will work as a paint though.

@hammysmad

8 жыл бұрын

+Robert Murray-Smith I have come to the conclusion that NaOH will not work. I used half of everything so 100 ml water but added 10 grams NaOH and let it dissolve. Then I added 50 grams Calcium Caseinate and waited after stirring with my maguyvered drill whisk. Went ahead and added 10 grams of yellow sulphur and it`s useless LOL.

@ThinkingandTinkering

8 жыл бұрын

+Colin Hammill bummer - though you may have used too much - pH only needs to be 11 or so - also leave the casein to soak over night in water before adding the alkali

@hammysmad

8 жыл бұрын

Robert Murray-Smith Cheers boss, I used 6 grams on my first attempt but didn`t do any pre soaking beforehand. I`ll give that a shot but do I just add the NaOH to the presoaked casein or make a solution?

will these plastics/rubbers perish with time???

@ThinkingandTinkering

9 жыл бұрын

yes - in about a month to a couple of years depending on treatment

@Bishka100

9 жыл бұрын

Robert Murray-Smith Thanks for the quick reply. I had a feeling that it might perish quite quickly.

@ThinkingandTinkering

9 жыл бұрын

it does depend on treatment - you can adjust decomposition time - actually you could fix it to hundreds of years - but mostly people don't want that

@secretsaltshake

8 жыл бұрын

+Robert Murray-Smith what would be the variable to create a longer span of usability time? thanks!

@ThinkingandTinkering

8 жыл бұрын

+secretsaltshake cross linking

200mL DI 10g of KOH 10 to 30 g of S 100g of Casein

@ThinkingandTinkering

9 жыл бұрын

yes

@leonardjanus7599

9 жыл бұрын

Robert Murray-Smith I tried with 15% sulphur, but rubber become very yellow and uneven. I use casein for wine clarification. May be it is not useful as acidic casein.

@ThinkingandTinkering

9 жыл бұрын

Leonard Janus casein or calcium caseate?

@leonardjanus7599

9 жыл бұрын

Robert Murray-Smith Potassium caseate.

May be good against 5G.

Apologies, dumb question(to me) lol, disregard previous question:)

@ThinkingandTinkering

9 жыл бұрын

dedlunch lol - too late!!