How do I heat cure or post cure materials if I can't use a kitchen oven and don't have access to an industrial oven?

Article courtesy of Smooth-On, Inc.

You should NEVER use your kitchen oven for mold making or casting applications. If you don't have access to an industrial oven, you can create an alternative by building a "hot box" out of materials commonly found at Do It Yourself store or home center.

We have come up with a way to easily build an inexpensive hot box to any size you want. Our design will create convection currents and maintains constant temperatures, resulting in even heating of materials which is exactly what you need. The foam board and other materials needed to build the hot box can be found at Home Depot or other home improvement DIY stores.

View our in-depth How-To article: How To Build a Hot Box Oven For Heat Curing Materials

Required Materials and Tools

  • 2" (5 cm) Foil Insulation Board
  • Heater
  • 1" (2.5 cm) Drywall Screws
  • Glass Thermometer
  • Duct Tape
  • Table Saw & Jig Saw
  • Drill with 1" Hole Saw, Screwdriver Bit, and ¼" Drill Bit

This FAQ article is offered as a guideline and offers possible solutions to problems encountered during mold making and casting. No warranty is implied and it is up to the end user to determine suitability for any specific application. Always refer to the provided Technical Bulletins (TB) & Safety Data Sheets (SDS) before using any material. A small scale test is suggested to determine suitability of any recommendation before trying on a larger scale for any application.