Silicone Mold - 7mm Slimline Initial set of stoppers are included with a mold purchase. Most tube-in series are universal in nature, if the tube length is close and bushings are the same size or smaller, then the tube-in blank should cast properly. This blue tube-in silicone mold casts one upper and one lower tube for the following, most major pen kit sellers will have a similar size: 7mm kits with approx 2.09" tube length PLEASE NOTE: Blue molds except Gisi Style Molds cast Polyester Resin (Silmar 41), Urethane Resin (Alumilite Clear), and Epoxy Resin (Liquid Diamonds). Mold release sprays help to extend the shelf life of molds. Please refer to the Casting Basics Guide for more information on mold casting.
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