Smooth Sil Series
Smooth-Sil Platinum Silicones cure at room temperature with negligible shrinkage. With different hardnesses to choose from, Smooth-Sil products offer tremendous versatility and are suitable for making production molds of any configuration, large or small. These 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 935, 940 & 950 are mixed 100A:10B by weight, while new Smooth-Sil 945 offers the convenience of a 1A:1B by volume mix ratio and a fast 6 hour cure time.
Smooth-Sil 935 - Shore 35A hardness
Smooth-Sil 940 - Shore 40A hardness
Smooth-Sil 945 - Shore 45A hardness
Smooth-Sil 950 - Shore 50A hardness
Smooth-Sil 960 - Shore 60A hardness
Technical bulletin Smooth-Sil series
Food Grade Silicone
Smooth-Sil 940 is a food grade silicone suitable for making baking molds and trays, ice trays, casting butter, chocolate and other applications used to produce food. CLICK HERE
More information on Smooth-Sil 940
Food Grade Silicones
Processing Smooth-Sil 940, the Sorta Clear Series and the Equinox Series of Rubbers for Food Related Applications
Some Smooth-On Platinum Silicones are certified safe for food contact. Smooth-Sil 940, the Sorta Clear Series and the Equinox Series are suitable for making baking molds and trays, ice trays, casting butter, chocolate and other applications used to produce foods. These materials have been tested by an independent laboratory to comply with the total extractive limits when properly processed and heat cured. Refer to the technical bulletins for these materials for proper processing instructions (available at www.smooth-on.com). Post cure requirement - After rubber mold has been allowed to cure for 24 hours, expose to oven heat at 212 F / 100 C for 4 hours. Let cool and wash mold cavity thoroughly with dishwashing detergent/water solution. Rinse thoroughly and allow drying before using. Compliance - The ingredients and ingredient levels in Smooth-Sil 940, The Sorta-Clear Series and the Equinox Series comply with 21 CFR 177.2600, rubber articles for repeated use subject to the total extractive limits as specified and published in the Code of Federal Regulations. FDA compliance does not mean that Smooth-Sil 940, Sorta Clear 40, Sorta Clear 18 and the Equinox Series are FDA approved. To be approved, the user must also comply with all applicable FDA requirements. Compliance with 21 CFR 177.2600 does not authorize use of the compound for the manufacture of baby bottle nipples.
Using Mold For Baking
Place mold on a baking sheet for greater stability and handling.
Do not expose rubber to temperatures above 400 F / 204 C.
Do not subject molds to the broiler.
Silicone rubber does not distribute heat evenly. Food in shallow molds will bake faster vs. deep draft molds. Thick sections will retain heat longer than thin sections. Check frequently for doneness on first use
Clean molds with soapy warm water and a soft sponge and rinse thoroughly between batches or prior to storing. You can dry the mold quickly in an oven. Bake for 5 minutes at 300 F / 150 C.