EASY mold making and casting with ALUMINUM powder!
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Published 2022-03-05
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MATERIALS:
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Smooth-On OOMOO 25 tin-cure silicone - amzn.to/3IJvhRT
Smooth-On Smoothcast 300 casting resin - amzn.to/3pEtCWq
Aluminum powder
Resin tint
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All Comments (21)
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Watched all this vid thinking you were gonna pour actual aluminum to this
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Tip; Pouring from a single location will reduce air bubbles in your cast.
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An additional tip. Smearing a thin layer of PVA (white) glue on the bottom of the mold to hold your pieces can ensure the silicone doesn't creep underneath the piece when making the mold. Keep the layer of glue thin. Afterward, water will soften the glue for removal. Also, a bean-and-cheese-free silicone is much less gassy.
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Is Tin Curing Silicone a viable choice in any case or is it sometimes necessary to use the more expensive platinum curing silicone? I've heard Tin curing Silicone can't get used too often to cast copies other than platinum curing silicone but I haven't tried to cast anything yet in silicone molds.
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can you use the aluminum powder with the regular Smooth-Cast 300 silicone?
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love that true metallic sheen you get from adding the aluminum powder to the resin and buffing. I want to try that! Thanks for sharing!
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Can I use this method to cast aluminum? I don't know if you're familiar with Rockford fosgate amps but a lot of the older amps from the 90's had aluminum end caps to hide the wiring for a clean look. Over the years people lose them, I was thinking about making replacements for my own collection of amps.
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Thanks for the video! I was wondering if impregnating the resin with metal powder like you did creates any metal like feel to the resin parts at all? I'm trying to find any solution to having a "metal feel" to my props without having to resort to actual metal casting with a foundry.
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This is such an amazing video! Thanls for posting it! I'm planning on using a similar technique for a prop that I'm currently building, and I was wondering what aluminum powder you recommend? We kinda see it here in this video, but there's no product link in the description.
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Very cool! I can totally use those parts for like a Batuu door panel or Gonk droid! I have been putting off the access panel for some time now. Luckily I have time now to try and get it done maybe do a small run like I did of my last panel!
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SUCH A GREAT VIDEO DEREK!!! I really want to (need to) start molding some of my most used pieces! Love the vaccum chamber. I have always just done the high slow pour ... someday! Great how to!!
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can you tint tin silicone with acrylic paint while mixing?
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Where do you get your powders from? Looking for copper, gold, bronze and a more shiny silver than this aluminum.
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Bravo man. Cold casting is so satisfying! Those came out great!
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Thanks for explaining the bubble removal process. Not sure why others don't explain this part in videos in more detail.
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Thanks for adding where you can buy the product you use.
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Aluminum powder. Did you use standard aluminum powder or is there a special kind? Thanks.
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Does the aluminium make the part surface stronger. Noticed the buffing part and wondered? You have given me some idea for metal casting and making the wax molds. Will play with aluminium powder in the wax molds. May be a silly idea but these things are worth a try. It may improve the surface finish of metal casted parts. Thank for the learning idea.
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Degassing the silicon made my day!
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Great overview Derek! Aluminum powder is a good idea because it won't rust or patina like a lot of the other metal powders could without a sealer. But that effect can also be used as a design aspect for a natural weathered look so perhaps that would be a neat video for another time?
