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Tutorials & Videos

Find Polytek® tutorials based on Product Type, Application or Mold Making and Casting Technique.
Tek-Tip: Reduce Bubbles in Clear Casting Resin
Without the proper equipment, it can be difficult to achieve bubble-free castings with clear polyurethane casting resins such as Polytek Poly-Optic® 14-Series resins.
Kiln-Casting with Glass: The Process
Anna Boothe, former faculty member in the Glass Program at Tyler School of Art (Temple University) and current freelance artist, provided us with a behind-the-scenes look at her lead crystal kiln-casting process.
Tek-Tip: Shelf Life & Storage of Polytek® Polyurethane Products
The shelf life of all Polytek® liquid polyurethane products (rubber, plastic, foam) is six months from the date of shipment in unopened containers.
Marbled Effect in Polyurethane Resin
An intrinsic “marbled” look can be a challenge to achieve with resin.
How to Make a Rubber “Glove” or “Sock” Mold
Glove molds, also referred to as sock molds, are one-piece rubber molds that can be turned back on themselves and peeled off.
How to Make a Rubber Mold of a Corbel
This mold making tutorial features the making of a poured block mold of a plastic corbel. It was one of the projects worked on at our October 2014 Mold Making & Casting Workshop.
Spray-On PlatSil® Gel-25 Mold with Mold Shell
PlatSil® Gel-25 is a platinum-cured silicone rubber that is used for theatrical prosthetics, lifecasting and mold making.
How to Make a Decorative Concrete (GFRC) Panel
This tutorial shows the process of making a decorative glass fiber reinforced concrete (GFRC) panel using various Polytek® mold rubbers and casting materials.
PlatSil Gels for PropMaking
Backfilling PlatSil® Gel-OO Skin with Flexible Foam
If you’re using silicone to create props, it may make more sense to create a silicone skin backfilled with foam instead of a solid silicone part.
Mold Making Tutorial: Silicone Mold of Clay Sculpture
John Cannon of The Whimsical Gardens brought his clay sculpture to our facility to make a mold of the figure and then reproduce it in plastic on a rotational casting machine.