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Welcome to - Custom Source for the Hobby Caster!
Welcome to - Custom Source for the Hobby Caster!

Cambridge Series - Silicone Mold

$ 30.00

BUNDLE AND SAVE: Alumilite 2.0 Tube-in Mold Bundle includes the 2.0 series tube-in mold of your choice, initial stoppers, 2 pounds of Alumilite Clear Slow Resin, and Tube-in Rolling Jig for $74.95 (you save $10.32)

This blue tube-in silicone mold casts one upper and one lower tube for the following kits: 

  • Cambridge Rollerball or Fountain Pen Kit
  • Cambridge / Ultra Screw Cap Pen Kit
  • Cambridge / Hybrid Screw Cap Pen Kit
  • Apollo Elite Screw Cap Pen Kit
  • Churchill Screw Cap Pen Kit
  • EL Grande Twist Cap Pen Kit
  • EL Grande Screw Cap Pen Kit
  • Old Ligero Screw Cap Pen Kit
  • Olympian Elite Screw Cap Pen Kit

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.  Please visit IAP Kit Bushing and Tube Reference for various pen kit dimensions.

Initial set of stoppers are included with a mold purchase. CLICK HERE to buy replacements.


Blue molds except Gisi Style Molds cast Polyester Resin (Silmar 41), Urethane Resin (Alumilite Clear), and Epoxy Resins.

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.