High-density polyethylene (HDPE) is a polyethylene thermoplastic, used in the production of plastic bottles and cutting boards. HDPE is considered more durable and safer than PVC. We use HDPE to make an alternative to our blue silicone molds, and it is available in most standard single blank or block sizes, as well in custom order dimensions.
This mold is solid HDPE and does not contain any screws. Note: black material is no longer available, so this mold will now also come as a white mold.
Cast Dimensions: 7/8" x 5-1/4" x 7/8" each cavity (casts up to 4 blanks)
Due to the nature of products used to create various casting molds and resin options, we cannot guarantee initial castings will produce a totally bubble / blemish free, glass-like finish. Depending on the casting project involved, there are usually secondary finishing efforts required, such as turning on a lathe, sanding, buffing, polishing, and/or applying a final leveling resin coat to achieve a perfectly clear, smooth exterior for your hand cast resin projects.
Mold release sprays help to extend the shelf life of our molds. We recommend Stoner Thermoset for Polyester and Epoxy Resins, and Stoner Urethane for Urethane Resin.
Please contact us or visit our Casting Basics Guide for more information on mold casting.
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