Smooth-Sil™ Series
Platinum Cure Silicone Mold Making Rubber
Smooth-Sil™ Platinum Silicones exhibit good chemical, abrasion and heat resistance. Materials such as plasters, concrete, wax, low-melt metal alloys or resins (urethane, epoxy or polyester) can then be cast into these silicone rubbers without a release agent. Smooth-Sil™ 940, 950, and 960 are food grade silicones suitable for making baking molds and trays, ice trays, casting butter, chocolate and other applications used to produce food.
HIGHLIGHTS
Versatile
Versatile
Smooth‑Sil™ products offer tremendous versatility and are suitable for making production molds of any configuration, large or small.
Low Shrinkage
Gram Scale Required
Recommend Vacuum Degassing
Food Safe
Smooth-Sil™ 940, 950 and 960 ONLY
Food Safe
Smooth-Sil™ 940, 950 and 960 ONLY
Smooth-Sil™ 940, 950 and 960 are food grade silicones suitable for making baking molds and trays, ice trays, casting butter, chocolate and other applications used to produce food.
Certified Food Safe
Gram Scale Required
Recommend Vacuum Degassing
Smooth-Sil™ 933
UL 94 V-0 Flame Rated
Smooth-Sil™ 933
UL 94 V-0 Flame Rated
Developed for electronic potting applications for flame resistant enclosures, creating gaskets for medical devices and electrical appliances. Applications where a flame resistant, flexible silicone seal is required.
Flame Rated
One to One Mix Ratio
Recommend Vacuum Degassing
Technical and Buying Information
| Select a Product Below | Mix Ratio By Weight | Mix Ratio By Volume | Hardness | Pot Life | Cure Time |
|---|---|---|---|---|---|
| › Smooth‑Sil™ 933 Flame Out | 1A:1B | 1A:1B | 33 A | 45 mins | 6 hrs |
| › Smooth‑Sil™ 936 | 100A:10B | – | 36 A | 60 mins | 24 hrs |
| › Smooth‑Sil™ 940 | 100A:10B | – | 40 A | 30 mins | 24 hrs |
| › Smooth‑Sil™ 945 | 1A:1B | 1A:1B | 45 A | 25 mins | 6 hrs |
| › Smooth‑Sil™ 950 | 100A:10B | – | 50 A | 45 mins | 18 hrs |
| › Smooth‑Sil™ 960 | 100A:10B | – | 60 A | 45 mins | 16 hrs |
VIDEOS and GALLERIES
Step-by-Step How-To Articles
video
Turning a Clay Sculpture Into a Metal Cold Casting
Milo demonstrates how to make a silicone mold of a clay relief sculpture, then creates a metal cold casting.
video
How To Make a Silicone Mold of a 3D Printed Part and Casting a Detailed Resin Training Skeleton
Watch how a medical training model is cast in resin.
How To Mold and Cast a Record That Actually Plays
How moldmaking and casting expand horizons for a seminar graduate whose passion is 78 RPM records
Making A One Piece Cut Block Mold
A one piece cut block mold is a popular mold making method that has some definite advantages.
How To Recreate Wartime Ration Bars With Food Safe Silicone
A military re-enactor creates edible WW2 D-Ration bars with Smooth-Sil™ 940 Silicone
video
How To Make Your Own Custom Chocolates Using a Food Safe Silicone Mold
Learn How To Make Your Own Custom Chocolates Using a Food Safe Silicone Mold
video
How To Make a Silicone Mold of a Prototype Using Smooth-Sil™ 960
The process of creating a very high accuracy silicone mold using platinum cure silicone.
video
Using an Innovative Silicone Tool to Vacuum Form an RC Car Body
Milo takes on vacuum forming an RC car body which presents an interesting challenge.
video
Using a Vacuum Former to Create Lightweight Wall Panel Artwork
How to to make beautiful decorative wall panels using a TASK 18 vacuum forming tool.
video
Live! - Casting Silicone With Milo
Milo demonstrates how to cast silicone and explain how to choose the proper mold material for your application.
What Have Other People Done With These Products?
Smooth-On Silicones Pass High Temp Challenge For Wax Casting
Nature's Best experimented and decided to change to Smooth-On platinum silicone rubbers.
Award-Winning Artist Brings Dolls to Life
Artist bridges the gap between fantasy and reality with automated life-like dolls.