How do I make my rubber less sticky?

How do i make a silicone rubber mold?

• i want to make one, and then make a metal charm from the mold. but it seems like everywhere i look it says to wrap your mold around the design you want, but i don't have one; that's why i need to make a mold. so if anyone can tell me how to make a mold or how to make a metal charm (with a unique design) without one, that would be amazing of you.

• Answer:

  What you'd "wrap around your design" would be a soft *moldmaking material* which will become the final hard mold. ...People tend to use the terms loosely though... actually the terms used are the moldmaking material, the form (the shape the mold will be based on), the finished mold, and the cast (or casting material put into the mold). ...There are also push molds (the most common kind) which are one-sided and have no undercuts creating a cast with a flat back usually, and two-part molds (where two push molds are used at the same time as halves to create one entire 3D shape), and 3D molds with just a hole or something at top to allow pourable casting materials to be put into them. ...There are also all kinds of mold making materials, and there are all kinds of materials that can be used to make the casts in those molds. Mold-making materials can create stiff molds or flexible molds. "Two-part silicone" molding material is one type and is very good, capturing fine detail and setting up quickly and in one step (though it's a bit expensive by volume--great for small things though). You can find loads of info on brands, using them, etc, on this page at my site: http://glassattic.com/polymer/molds.htm (click on 2-PART SILICONE PUTTIES) Latex rubber is another type, and urethane rubber, and other proportions of silicone molding material, etc. One common type of latex rubber molding material comes as a thin runny substance that's brushed onto a form, for example, in many layers, waiting between each layer so can take a long time. It's cheap though. http://www.google.com/search?q=how+to+make+rubber+molds http://www.google.com/search?q=how+to+make+latex+molds What kind of "metal" are you casting btw? Real metal requires a very high heat to become pourable, or even soften. You can use something like polymer clay instead to cast in many kinds of molds. Before or after hardening the casts in the oven you can apply metallic or real-metal powders, or metal leaf, or metal waxes, etc, which nicely simulate all kinds and colors of metal: http://glassattic.com/polymer/Faux--many.htm (click on the category near bottom of list called METAL...that will also direct you to the pages at my site specifically for Powders and Leaf) You might also be interested in the pages there that would have to do with "charms": http://glassattic.com/polymer/miniatures.htm http://glassattic.com/polymer/pendants_cording.htm (click on TOP LOOPS) HTH, Diane B.