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This is a step by step mold making tutorial that covers how to make a basic mold with Silicone Plastique®. Many silicone moldmaking applications require nothing more than this fundamental knowledge which will enable you to make your own mold of simple objects like medallions, badges, coins, sea shells and many similar objects. If you have no mold making experience, we recommend that you start your education here by learning how to make a basic mold with Silicone Plastique®.
Applying Mold-Dit to an Object That Will Be Used to Make a Silicone Mold
Mounting an Object onto a Work Surface Using Mold-Dit

Step 1

Before making a mold, the model to be duplicated should be mounted to your work surface.  Apply a one-eighth inch film of Mold-Dit™ to the bottom of the model and press on to the work surface.  Apply enough pressure so that Mold-Dit™ squeezes out the sides.  Wipe the excess away with a towel or scraper.  This creates an aggressive suction between model and work surface, sealing the bottom so silicone does not creep underneath your model.

Mixing Two Part Silicone Plastique Until a Uniform Color is Achieved
Silicone Plastique - Two Part Food Safe Mold Making Material with Putty Consistency

Step 2

Silicone Plastique® has the consistency of clay. Equal amounts of Part A (White) and Part B (Blue) may be measured by weight or volume. Part A and B are combined and kneaded until a uniform color is achieved. Your Silicone Plastique® is now ready to use and should remain workable for 15-20  minutes. Note: You may refrigerate Silicone Plastique®  before combining to extend work time.

Applying Silicone Plastique Mold making Silicone Over a Textured Medallion
Completed Silicone Plastique Application Over a Textured Medallion to Make a Mold

Step 3

Rub a small amount of Silicone Plastique® directly into the details of your object, creating an initial layer. Apply a second layer, at least one quarter inch thick, completely covering the object surface.  Note: To bond correctly, layers of Silicone Plastique® must be applied before the previous layer is fully cured.

Unmolding Silicone Plastique Food Grade Mold Making Silicone
Finished Silicone Plastique Mold Removed from Medallion Master

Step 4

Silicone Plastique®  has a work-time of 15-20 minutes and a demold time of 60-75 minutes at room temperature. You can demold your object when the Silicone Plastique® no longer shows an indentation when pressed with the edge of a tool, fingernail, or coin.