Thank you for this! I goofed on a mold and was hoping there would be a way to save the silicone I used

clever and responsible, I like it!

great! it should also work for the little ammount of silicon that stays in the mixing cup. thank you for the tip :D

Great video! Quite a savings if you're a maker. Many thanks!

Also, guys, keep in mind that this will be messy, flakes of silicone everywhere Take all measures so that they are contained and will not reach the water supply

Great idea it seems for silicone mold making as from what I've gathered the silicone molds needed don't need to be super rugged and heavy duty. Because the problem with mixing old silicone with new silicone is silicon doesn't even stick to silicone, at least not with the same bond strength compared to using new silicone on a clean prepped fresh surface of anything other than silicone. So for applications that are short term use and dont need the strength of original fresh silicone this is great!!

Ty so much for the video... I wanted to ask though you have where you can see the granules that you put in on the top it doesn't show on your pieces? Your piece is still smooth and not bumpy? Thank you again for the video

this is a great tip!

Very helpful!! Thank you.

thank you , I work quite a lot with silicone and resin/bronze, recycling , well done. now at the moment I just mixed 1 and half kgs of pure silicone, 10% cat was recommended. but the cabiat . the barrel of silicone is over year old?? . the mix kicked in vacuum chamber. like thixo concistency. I wonder should I try 5% tomorrow

Can you also use scrap silicone putty molds in with liquid silicone?

Will making a mold this way work with clear resin? I’m amazed the mold is still smooth with the ground silicone.

Can you use this technique if youre pouring a block mold (aka one side at a time) ?

great video !!! Keep it up!! just a question , what should we do with expired silicone sealant ?

Thats good to know as I wondered about reusing it. What is the red catalyst btw?

Nice! The ratio of catalizer is calculated based on the amount of new silicon (disregarding the amount of recycled one), right?

Really helpful thank you!

@Mold3d did you try to heat or freeze the silicone first ? been having a hard time recycling it

Oh my god, thank you! I never thought to do this, and silicone is so expensive here in Aus!

Hello! Great video! I am always sceptical when creating a silicon mold, as it's quite expensive and - until now - not reusable. What proportion of catalyst do you use when mixing a 50grams new/50 grams old ratio, the same amount you would for 50gramms of new silicon ? In adavance, thank you, and have a great day!

I wonder if the different shore strengths would make a difference ? Mixing a 00-20 with a 15?

Very useful tip for a beginner like myself ☺ 👍

Seems like a pretty great idea for when you’re making a bunch of one time use molds. Also saves cost, silicon isn’t cheap.

Great video! Do you believe that the recycled silicone makes for a more durable mold?

Also do u think you get a whole cup more like if u were using 1 1/2 white and 1 1/2 red?

Outstanding 👏👏👏

Brilliant, many thanks : )

this is awesome i luv that idea , but i would use an electric grinder instead for saving time

Brilliant!

what is that solution you used again? aside the catalyst. or is that a silicon mixture and you just add the grinded rubber?

Thank you 👍

I do have a question though if you have a 3D printer and you've already made the item or and have the capability of making the item why would you make a silicone mold to make the same exact? Seems like a load of extra work vs pressing "print" on the printer already owned and the labor having already been done.

Do you still use the same silicone to catalyst ratio as you would if you were not using the recycled silicone (aka for 1:1, would it still be 1:1 of catalyst to new silicone with the extra bits as just an addition to the overall mix?)

Awesome!! Thx👍

Can I use a Magic Bullet or an electric blender to shred the silicon?

wouldnt that add some small ridges or texture in the surface (because of the granulated silicon)??

I do use pressure for molding and casting, so this may not be a good solution?

Newly into making molds. Would like to know what you use as a catalyst. Love the video

Can you melt silicone raw without any chemicals or additives

hi what shore is the silicone you use ?

That finger had me crying 😂

Ever get issues with trapped bubbles?

Can you give the name of catalyst you used for mixing original silicone and recycled one..??

Can you use a food chopper or processor?

Way cool. I imagine it's not ideal to mix platinum and tin-cure silicones, right?

can be silicone disolved ?

Good job

Great thanks

It is not possible to heat and melt silicone?

That has really helped a lot, thank you! I bought a 3d printer and I'm currently making a valve but need silicon parts to seal it off. Do you think I would get good results making a 3d printed mould and inject the silicon into it to produce my parts? It has to be food grade, so I also need to make sure any ground down silicon is of the same variety. You could make endless products by what you've shown us in the video. Clever stuff! Especially sharing your expertise for free.

Hi i just wanted to ask that can we use a silicone mould for casting multiple times?

yay thank god lol I knew there was a reason I kept all my little bits of silicone or my disaster molds lol

Nice. Amazing idea. Put a motor on that meat mincer and that's that

Thanks you verry muchhhhhhhh

Why not a food processor??

Just need to add a tall funnel and an electric motor. Thanks for sharing this!

Hey, buddy, is there silicon in the kids 'toys?

Hmm, wonder if you could attach an electric drill to the handle side...

Omg I been working on molds for my hookah tip business & it’s been a disaster. I’m praying that this method would redeem my $200 spend on silicone

hi, what is red catalyst

So none of those chunks interfere with fine details or clog channels? Say for instance damming an arm so that silicon cannot flow all the way to the fingers.

I thought this was going to be about melting

Could you use a blender etc?

💪

But not bumpy?

what's the red catalyst?

We need scrap silicone rubber，if you have please add me

It like Jesus come back 😂🤣

food processor $40 US

I did a video 13 years ago showing how to recycle old silicone molds, works better if you use a pressure pot kzfaq.info/get/bejne/Y9pmh5xjqazdkWg.html

I thought I could just melt it down

Not satisfied with this method. Not only will it create lots of fine bits of silicone that will be hard to keep track of, but it's not well suited for storage since it will be very hard to clean silicone pieces that small should they, say, get so much as dusty. You also are very likely to get bubbles trapped among all those fine particles.

Looks like chunky barf

thats siliCONE not siliCON

For crap sakes, enough mamby pamby safety shite. Give it a rest.

In your next video do like ur first grade school teacher. Use a stick to point, not the finger