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Post by burtdog31 on Dec 30, 2019 11:43:08 GMT -5
Hello to all, Sorry for my English, I am French so I can make mistake in my sentence, but I will try. I am new on this forum and after make some search, I need more help. I want to make a part in silicone, the same silicone is used for the oven glove, see picture. I need silicone strong in tear, soft to manipulation, resistance in cold temperature, rain, snow etc... Do you know if I can find this product on market and make my part? I found some silicone like mold star 30 or alunite high strength 3 but its use to make molding and not for parts, I think. I don't know if this kind of silicone is resistant for what I need. I make a mold in fiber glass resin, I just need silicone liquid to put in. thank you for your help and happy holidays and new year Attachments:
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Post by notoes on Jan 4, 2020 8:26:42 GMT -5
Alumilite High Strength 3 can be used as a casting if you use a hard mold and it's rated to have a very high tear strength, I usually go straight for the scissors when I need to cut it as I know for a fact that it will not tear easily - it's meant to stretch and flex but not tear.
I normally use Plat 25 (food grade silicone) more as I make custom candy molds so I know it's rated for freezing temperatures such as for ice cubes but I'm fairly certain the High Strength 3 can also handle the cold as I've stored it in an area that gets freezing cold. Both silicones can handle up to 395 degrees heat but you mentioned weather conditions so I would suggest the High Strength 3 for longer use in those conditions and the higher tear strength it is rated for.
As for what silicone that oven glove is made of, that I am not sure of as I don't own one so I can only suggest trying the High Strength 3 from what I've done with it myself. It may be listed as a "mold material" but there is no reason why it cannot be used as a casting material too from what I've used it for.
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Post by burtdog31 on Jan 5, 2020 22:04:54 GMT -5
Thank you Notoes,
I will try high strength III like you suggest.
Have a nice day
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Post by notoes on Jan 6, 2020 6:09:18 GMT -5
You're welcome and let us know how it comes out.
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Post by Virgata on Jul 30, 2021 16:25:04 GMT -5
Hello!
I have been looking for a part to seal a kitchen "can"
I needs to handle heat ofc rubber does, the problem are that it are hard to find, almost impossible, and Im and know for finding things, almost all the time.
As I am in to reuse old things as long as possible this ends in making a seal for it, and then it falls on silicon ofc, I also will be able to sell those seals, or even making special parts for others.
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Post by notoes on Aug 7, 2021 7:36:35 GMT -5
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Post by haleiakala on Sept 15, 2021 16:41:56 GMT -5
How would one make a mold for the silicone gripper or the gasket?
Thank you!
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Post by notoes on Sept 16, 2021 8:33:02 GMT -5
If you already have a worn out one, you can just press it into clay, carefully remove it, and bake the clay. Then you have a hard mold for it. You can also make a silicone mold of the gasket but you'll need to use a release agent to be sure it doesn't stick to the gasket and then use the release again when you pour in the new gasket material.
If you don't have the worn out gasket to copy then you can simply pour the material you're making the gasket from onto where the gasket will be going and carefully close the top over it. Make sure you put a release agent on the can and the top or the gasket might do too good of a job of holding them together.
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