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™ 936
Smooth-Sil™ 936
Lower viscosity version of Smooth-Sil™ 935 platinum silicone rubber (21,000 cps vs. 40,000 cps). It is easier to mix, vacuum degas and pour.
Easier to Pour
Gram Scale Required
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™ 935 | 100A:10B | – | 35 A | 45 mins | 24 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
Making 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.
video
Making a Silicone Mold of a Prototype Using Smooth-Sil™ 960
The process of creating a very high accuracy silicone mold using platinum cure silicone.
Recreating Wartime Ration Bars With Food Safe Silicone
A military re-enactor creates edible WW2 D-Ration bars with Smooth-Sil™ 940 Silicone
Molding and Casting a Record That Actually Plays
How moldmaking and casting expand horizons for a seminar graduate whose passion is 78 RPM records
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.