How To Make a Silicone Mold Using Mold Star 15
How To Make a Silicone Mold Using Mold Star 15
This instructional mold making tutorial shows you how to make a silicone block mold for casting resin, wax, foam, and many other materials using Mold Star 15 platinum silicone mold rubber.
- Use hot glue to secure the model.
- Glue the mold box to the base.
- Dispense equal amounts Parts A & B into mixing container.
- Mix Parts A & B as directed.
- Slowly pour into one corner of the mold box.
- Pour 1/2 inch (1.25cm) over model’s high point.
- Allow Mold Star 15 to cure.
- Carefully remove the mold box.
- Slowly peel back the cured rubber. Mold Star 15 reflects perfect detail
Mold Star 15 is an easy to use Shore 15A platinum silicone that is mixed 1A:1B by volume (no weighing scale necessary). It features a relatively low viscosity and vacuum degassing is not required for most applications. Pot life is an extra-long 65 minutes. Mold Star 15 cures overnight to a soft, strong rubber that is tear resistant and exhibits very low long term shrinkage.
Watch the video or find step by step instructions below
Step 1: Secure the Model
Use hot glue to secure the model to the baseboard.
Step 2: Construct a Mold Wall
Use hot glue to secure the model to the baseboard.
Step 3: Dispense
Dispense equal amounts 1A:1B by volume.
Step 4: Combine
Dispense parts A and B into mixing container.
Step 5: Mix
Mix parts A and B as directed, carefully scraping the sides and bottom of the mixing container.
Step 6: Pour
Slowly pour into one corner of the mold box.
Step 7: Mold Wall Thickness
Pour 1/2″ (1.25 cm) over the model’s high point
Step 8: Cure
Allow Mold Star™ 15 to cure, it has a cure time of 4 hours at room temperature (73°F/23°C)
Step 9: Remove Mold Box
Carefully remove the mold box from the baseboard.
Step 10: Demold
Slowly peel back the cured rubber.
Step 11: Finished
Mold Star 15 reflects perfect detail.
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