How to Make a Silicone Mold for Concrete Casting

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@jpeabody1155 7 ай бұрын

I have only just come across your channel. As they say, you always keep on learning. I started molding statues 3 years ago just to help my wife out in her mosaic hobby. And for a little while it was just a hobby for me. Since then I have semi retired (I am 60) and making statues has become a full time business. I now have made 63 latex molds with fiberglass mother molds. It was very interesting to see what you did with the silicon. I use a similar thing to fill in the undercuts on my latex molds prior to fiber-glassing except I use a lot more corn starch to make a moldable mix. I have also used this mix to make impression molds. While, the process you have shown is something I doubt I would use it is still a very interesting process to keep at the back of my mind should the need arise and I am asked to do a number of wall plaques etc at short notice and in a minimum run. Thank you

@James-fe7wd 4 ай бұрын

You are a real pleasure to listen to. Articulate, to the point, and a fountain of good advice, no doubt hard earned. Many thanks for your contributions

@bethsmith-resnik2791 7 ай бұрын

Oh how I have been looking for someone like you. Thank you. I play with clay, concrete and epoxy. I’m done with epoxy because of temperature issues however wanted to make my own designs so got into clay to design and then decided to use the clay to then mold them into my own. You have been so helpful. Thank you so so so much!!!!!

@sandraolson7813 4 ай бұрын

Thank you for this video. I tried many times to make silicone molds in the past. Thinning, pouring, adding cornstarch and manually molding. I finally gave up all together. You are inspiring me to try again.

@johnburns2940 4 ай бұрын

Try it again!💪🤩☮️🙏💟

@luvnotvideos 4 ай бұрын

What a fun project! Thank you for sharing 😃 Couple of notes about the mold making - 1) Add a thin layer of cheese cloth or similar fabric between the detail layer and the bulk layer. This will mitigate tears. 2) Embed at least two register pieces to your bulk silicone surface. It can be as simple as scrap silicone lumps, marbles, chunks of wood, etc. Just make sure they are distinct shapes from one another. This will allow the silicone to settle back into the stiffener layer perfectly every time.

@anthonybaringer6697 2 ай бұрын

We used to have to beat forms apart (steel forms) at work with a spud bar and sledge hammer when making concrete barricade block until we started using form release oil and we can now open them with a spade shovel very very easily. Not sure if you've tried it or what the difference between mold release and form release are but it may be worth checking out for releasing the silicone from the concrete.

@shelleythorstensen6193 Ай бұрын

I'm so loving your videos. Thank you! I'm a printmaker, concrete is my second love and now sometimes first love. Having trouble finding white portland cement! Any clues?

@jazzrat2000 6 ай бұрын

Very nice! New subscriber here. I want to know how to make molds for the pots you have on the shelf because I make bonsai pots and mine aren't very good. The plants don't seem to mind, because they make the plants look more beautiful.

@michaelangel8280 5 ай бұрын

Thinking I've found a new obsession. Was looking for tips on the clone a willy I got for my woman's birthday and I'm a couple hrs down the KZbin rabbit hole now. I will be attempting overly complicated molds beyond my skill level asap 😂

@tatsumawatson5799 8 ай бұрын

Thank you for such an in-depth instructional video! Could you do a video on molding and casting a custom olla out of concrete sometime?

@creatingconcrete 8 ай бұрын

Thank you, I am happy you are enjoying the content. Do ollas get made from concrete? I am not very familiar but the shape would sure work well for this process.

@tatsumawatson5799 8 ай бұрын

@@creatingconcrete Ollas, in my understanding, are made from terracotta. Given the porousness of concrete, I've been wondering if a concrete olla would be viable. Do you have any thoughts on it?

@anthonyelliott8092 4 ай бұрын

im looking to make a mould for stepping stones. could i use a plywood pieve cut in the propr shape to make the silicone mould,

@careyjohnston4176 8 ай бұрын

Great day handsome. Thanks for new video. ❤

@creatingconcrete 8 ай бұрын

Thanks mom!

@careyjohnston4176 8 ай бұрын

Are you sure you meant to call me mom? LMAO

@IzySly-g4h 4 ай бұрын

I think you could use parafin wax on the surface by heating the concrete and allow parafin or candle wax to just melt and spread around for a mold release.

@MadLadsAnonymous 8 ай бұрын

Have you done a video on geopolymer concrete and non-fly ash mixtures in particular? I looked briefly on your channel but didn't find anything.

@robertingels3826 8 ай бұрын

The original looks a little larger. Is there shrinkage in the mold size when using the silicone?

@creatingconcrete 8 ай бұрын

They are actually precisely the same size. There is no shrinkage whatsoever. Maybe it is a color effect from the different versions being shown

@czerniana 4 ай бұрын

So if a person wanted to make, say, a tessellated paver with surface carved details,roughly the size of a turkey platter, what mold material would you suggest? Something that will need to be cast several hundred times, maybe three or four molds going at a time. Would you suggest going with the thick poly or would the silicone work just fine? Or is there a completely different material you would suggest?

@landofchristina7380 8 ай бұрын

Thank you so much for this great video! Would I be able to use non dry modeling clay as a cast versus the concrete you used? If so, what would I do differently?

@markalan9368 8 ай бұрын

Great video!! Thanks for sharing your knowledge.

@loganwintry9945 8 ай бұрын

Question. How do you polish your concrete builds? BTW subscribed, love your Channel. I make various concrete castings but sometimes they turn out rough or flaky. I want to make them smooth

@AdisonCooper 3 ай бұрын

Ive been trying to figure out why my edges are always easily turned to powder. But after hearing you say wait 30 days to do any sanding, maybe thats my problem.

@richardmccann4815 7 ай бұрын

I think that concrete as a backer would be a good bit cheaper than fiberglass, even with a 50 lb bag of white sand at 10 dollars. And a lot less trouble!

@Ucan_Tekme_Ninjasi 8 ай бұрын

it turned out to Wilson's face from Castaway

@creatingconcrete 8 ай бұрын

That is exactly what I was thinking!

@bradolfpittler2875 6 ай бұрын

But it looks like Tom Hanks to me.

@richardmclaugfhlin65 27 күн бұрын

Love the video. HATE the music, it's like a ringtone from hell.

@geoffok 5 ай бұрын

9:20 no it doesn't. It smells amazing.

@ericray7173 Ай бұрын

Let me know if you want some more interesting music. I’m a musician and I’m trying to get a portfolio going which means free background music for whoever needs it RN!