Casting Pot Metal In A Silicone Mold
ฝัง
- เผยแพร่เมื่อ 20 ก.ค. 2023
- In this video I’m casting a small jewelry-sized tiki pendant in pot metal using basic tools and a silicone mold.
To bid on Crazy Al’s Tiki mug visit: www.tikimania.com/docs/ALmug13...
To join my Patreon go to: / roberttolone - แนวปฏิบัติและการใช้ชีวิต
Tuna Crucible would be a great band name.
Better album name tbh.
@@emperorhadrian6011 "Tuna Observatory" did my favorite Christmas record, hilarious!
Much like tuna, I too am drained and ready to eat ...
It also sounds like something I'd call your mum in an Xbox lobby lmao got 'em
I haven't cast metal in RTV since my 20s. I was doing gaming miniatures because all my friends at the time gamed with them. There is RTV for high temp applications that will last a long time and then I also got into spin casting where the miniatures are placed around a mold that is circular and the metal is poured in the center of the mold and the spinning action forces the metal into the cavities of the mold and it helps to maintain finer details over just plain casting because shrinkage is reduced. Aside from the fine detail you get you also can produce 10 pieces at once in one casting.
So cool Robert! Can I please request more metal pouring content. Thank you!
Second that!
@@truck6859 Thirded! Very interesting to see!
I also support this notion.
I never get tired of seeing the rubber degassed!
Great video Bob. I make my own pewter using tin and antimony. We dust the cavity with talc powder, extends life of mold and pewter flows easier into cavity.
We would get about 250 to 300 pulls per mould, but would make the pouring gate much thinner and a bit longer. Also allow the mould to cool slightly between casts will extend it's life.
Careful when using metal with lead in it, highly toxic.
Contenti in USA supply pewter ingots and tools.
A stainless second hand measuring cup would make a really handy melting vessel. You won't need to burn it out or sand it.
this video of yours is perfectly timed in regards to an obstacle i'd come across in my own hobby. so cool that you can melt metal in a can and cast it in silicone! i now have to research more about this "pot metal."
That was my question too. Exactly what is considered "pot" metal and what isn't? Gonna go Google-late it, I reckon. Good luck to you with your research.
Just sane... :^) Saint
@@eugenesaint1231 The most common metal for casting like this is going to be pewter, which is an alloy of tin.
@@_ClericalError_ Thanks, partner. That's great to know. I think I'm going to go ahead and just sand cast the part I need in aluminum.
When you pre-heat your silicone mold in the toaster oven, what temperature do you set it for and for how long? Love your channel!
The Hot Pot 2 is a super cheap, yet very effective means to melt pewter and other low temp metals. Runs about $50. You should also dust your mold with talcum powder to get a dependable finish. Pre-heating the mold is a good idea.... but if you pour one or two, pop them out, and remelt them, your molds will be plenty hot. By the 2nd or 3rd recast, you'll be set. Also you should have some SUPER tiny air holes to help the air escape any overhangs. Silicone is good, but there are better, more rigid rubbers like Smooth On 60, which help hold the metal better. The weight of the melt will deform parts in silicone. The "pot metal" he used most likely contains alot of lead. If you're making jewelry, use a decent quality modern Pewter, as they never contain lead. (older pewter though will!)
This just popped up in my recommended, probably because I am a hobbyist metal caster. I have cast Pewter(Tin), Lead and Zinc in silicone molds many times, but never made my own silicone molds... yet, so this seems like the right place to learn something new! Subscribed and hit the bell. I'll be watching more of your stuff. 👍
This was ridiculously helpful in my casting project, thank you.
I recently used one of these molds to pour melted bismuth in it. It was pretty successful!
Ha :) I used to cast pewter from an old tuna can. Brings back memories.
Thank you for this video! I love how considerate you are for those of us who don't have power tools.
I've been wanting to cast for a while, and now I wee I don't have to have fancy equipment!
Whew, my Friday night is saved. For a minute there, I thought we were not gonna get a video today !!
Thank you Robert!!!!
This gives me hope for casting parts for die-cast car models with metal parts.
If I get a good spare part from a supplier, I can clean it up and polish it. I can make a couple of molds, and turn out enough parts for my collection with little to no work to do on them.
With the spare parts, I always have to do some clean up.
I'm planning to try casting with cerrosafe. Now I know a silicone mold will work. Thanks.
Wow! The channel seems to have had an overhaul! Cool :)
You always seem to use rubber and resin that cures quickly. I understand that for production molding. But if you had something with lots of detail would you consider using a slower rubber or resin? If so would you do a video on that and maybe how curing times can affect the quality of molds?
I can safely say I have done this and it works with pewter, lead and alumunium 😎 silver, copper and gold won't pass the heat melts the silicone mould
YAY! You did a metal casting video. Can you do a larger model next time maybe with the use of talc to let out the air and tapping the rubber to fill the mold details.
I was thinking about trying this with some bismuth. I wonder how many cycles a mold can handle at bismuth temperatures. Thanks for another informative video. It's Always nice to see new clips from you, always more to learn.
Hey Robert, I've seen some photos of silicone molds designed to fill the object to be cast from the bottom using a spout that travels from the top of the mold, to the feet of the model. Do you have any information on this? I assumed it might be for a better release of air, another mold maker suggested it was for pressure using the weight of the resin itself. I primarily make miniature things- around palm sized, so I'm wondering if this might be of benefit for me to explore. Thanks, Trent
long time coming! thanks for waiting it out Robert....!
Appreciate the info OG
Such a great video! And honestly I love your humor. Not sure if you write the stuff before or just explain as you're working. Just the little bits of wholesome Sarcasm is so nice nowadays
I like your style
love the content robert thank you
You make it look easy :)
what an amazing tutorial. great production quality and you are an amazing host! thank you!
That was very insightful - I didn’t realise the process would be more involved. Some handy tips and advice. Thanks.
So many good tips, a lot of people overcomplicate preheating in other youtube videos lol
This is kinda late but Happy 80k subs Robert! This was 55k subs more since the 1st time I subscribe to your channel. Congrats!
Great timing! Where does one get low melting point metals like that? I'm hoping to make some simple custom jewelry...
Finally some metal, have been waiting for this video for soooo long =)
wow amazing content you have 😊
I was wondering how to do this. I'm thinking of making a 1/100 747 separate wings using metal instead of resin. I used resin but couldn't pressurize it because they are about 14" long. The wing I did make tends to warp and sag on it's own. I was also going to reinforce the wing with small square brass cut into the bottom side but as you get towards the tips it's gets thin, maybe a small brass sheet. If metal works that would be a lot stronger, just need a lot of pot metal.
Papa ROBERT!! Can we see some more metal/silicone vids!!?
tHANKS but it would help if you could give us more details: Kind of alloy, casting temperature of the RTV etc...
Does your "hi-tech auto-clave" also work as an air-frier?
I've been getting into metal casting at home myself. For the first step about heating up the mold, would it be tenable to use a heat gun?
i was always wondering about this process and did some castings for my model trains but each time i had voids forming on the surface and little details that never fully filled
does heating the mold only make it hot or is it more for drying any moisture ? how much detail was lost in this casting , and how much metal shrinkage make it not qhite the oryginal?
Which alloy do you use? Older time I used lead alloy, but I had to use a special silicon to be able to survive the temperature. Also It was stiffer than your silicone ant needed graphyte pouder as flux ( without finishing was really rough)
Thank you for this work, but can this silicon withstand the melting point of silver and copper?
Unusual question: I want to put a coating of durable but semi-soft resin on a thin metal hoop earring. Can I brush or dip it on? Will epoxy or polyurethane resin do the job?
I wonder how many models can be taken with one silicone mould
The smooth on silicone, with smelted metal can it take the temperature of smelted stainless steel?
can we make ring out of pewter but will it get easily damaged?? Will it keep details and will it react on skin???
Also: Does the shine of the buffed aluminum surface stay shiny or does it oxidize and become dull? Thanks again.
Please live a long life
Off note, have you purchased RTV from SilPak lately? They were bought out by another company. The hardener looks like watered down Kool Aid instead of the usual melted blue Jolly Rancher, and the cured rubber has a very pale blue unlike to blueberry milk I am accustomed to.
Hi, What is the silicone called? Where do you purchase it ? Same questions for the metal ingot. Thank you !!
I wonder what kind of silicone you used to make the aluminum mold??
What temperature and for how did you pre-heat the mold?
What type of silicone did you use for the metal and what’s the temperature of the heat when putting in the oven..??
I would like to cast a part out of pot metal. Can you tell me where to buy some pot metal. Thanks for your help.
What temperature and how long when using your “ultra-modern autoclave?.
What silicone rubber would you recommend for zmak or zinc metal?
How many times would you expect to use that silicone mold?
I applied spray on release agent to my model before pouring the rubber, next day I opened the mold and had cure inhibition on the model, is this because the release agent reacted with the rubber and didn’t cure? I didn’t bother to wait for the release agent to dry before pouring. Also, maybe I don’t even need release agent on the mold, as silicone doesn’t really stick to much. I suppose I should try again without the release agent.. any thoughts?
Probably dumb question: my car keys shell got old and crumbled to pieces. Having one new made by Suzuki costs a lot and was thinking about casting one (never castel anything in my life). Resin seems the easier but i doubt it'd have the right resistance to traction (gonna break at first usage, unlike plastic). So i thought metal but aluminum requires sand molding that i guess are way beyond a newbie's skills. Could something like this be the solution? Also how Hot should the mold be? And what exactly is pot metal?
With a "Dremel" from Harbor Freight! ;)
Aluminium foil doesn't insulate as it's an excellent conductor of heat so if anything it would help the mould cool quicker, not that it seemed to matter in this case. If you did want to insulate then glass fibre fabric (fire blanket) would be an easy/cheap option.
You are right, however, it is not insulating the conduction heat. He is avoiding it from touching the mold too much. Aluminum is an excellent IR reflector. It redirects the radiated heat back to the mold. That is how these ultra-thin emergency heat blanket work.
@@costa_marco Space blankets are plastic (mylar) film covered in a VERY thin layer of aluminium so they are poor conductors of heat but also good reflectors. You can't compare the two.
@@mfx1 Chemists will envolve an distillation apparatus in aluminum foil to improve the process. If your theory was correct, the apparatus would be colder when using the foil, making the distillation process even harder. Non moving air is a very good insulator. The comparison with the blanket is valid. The plastic from the blanket does almost nothing to avoid heat transfer by contact. It protects the user from air currents.
You can try it yourself: heat 2 cups of water to the same temperature, keep one open and the other you envolve in a loosely ball of aluminum foil. Every minute, measure the water temperature on both cups and record them. Plot them and see which cools down first.
@@mfx1 I think I understand your point. The key thing is to have the aluminum foil loosely bound to the mold. You must keep air pockets between the foil and the thing you want to isolate. Otherwise it will act more like a heatsink. Cheers.
what is 'pot metal' ?
OK, dumb question: I have a monopoly token broken off the base that was a one off in a limited special edition. I could cast it in resin and then cast it in pot metal I guess, but for my instance would it just be simpler to just try to solder it? I'm trying to make sure the piece isn't lost to me forever. So far, I haven't found it on eBay or various places. I've bought a few of similar editions, but none seem to have that token as part of the set. It's dumb - I don't need it. I'm just a little OCD - not having it bugs me. There are over thirty tokens, and poor design of the case allowed this piece to bounce around enough to break off the base. The metal is the same as any standard monopoly set (odd given it was a limited edition). I thought about making a complete resin set mold. If I go that far, I could have the same to use for the replacement piece - but working with metal isn't trivial. I guess I just need some insight - can a monopoly token be soldered (or just heated enough to reattach to a base)?
If it’s pewter it can be soldered.
can we cast brass in silicon mould??? *Please tell me important*
No, the melting temperature is too high.
Instead of heating the mold you can also dry it by putting it in a plastic bag with a cup of calcium chloride.
Hey robert if your still doing request on molds can you please try to recast a bakugan figure ? Any one would help me the pieces are very small and i have trouble cutting the molds and poring the resin in them. Please help!
It is tricky to cut and fill small molds. You may have to vacuum the molds to get the resin to flow in.
what is Pot metal???
where to buy Pot metal?
Rotometals is one place
36 people already saw it before I did!
lucky number 37
I figured silicone could handle pewter, but I didn't know it can handle aluminum temperatures
What do you mean by pot metal? That's a generic term. What kind of metal was it? Pewter?
i wonder, too. pewter is probably a good guess.
Wondering myself. I found this, "Technically, when the alloy contains anything other than tin, bismuth, silver, copper, or antimony, it is no longer pewter, but simply a pot metal."
Holy micro it was so tiny I couldn’t figure out what it was….
What the hell is "pot metal"
Pot metal is metal thrown into a pot and melted down. It's called "pot metal" because it is never a formulated alloy. It's just "scraps of this and scraps of that"
You can tune a piano....
But ya cant tuna fish
It gives me a little heart attack when you cut almost blindly into a lump of silicon. The stresses of professional toy-making would be too much for me. I wish the GM cars of my youth didn't have door handles made of "pot metal". Back in the day I frequently drove around with coat hangers and other oddness hanging out of my car door handle holes to allow them to function as intended.
very holey
it got cast away
economania tho
I truly love your show. Bet youre an amazing granddad.