Food Grade Silicone For Molding


This product can be used to manufacture food contact molded silicone rubber products in compliance with FDA standard requirements. After vulcanized, this product has good transparency and superior physical and mechanical properties, such as the yellowing resistance. It complies with the requirements for manufacturing of seal ring products for pressure cooker in the hygienic standard GB4806.1.

CategoryProduct modelAppearanceHardness
Shore A
Tensile strength
Mpa ≥
Elongation at break
% ≥
Breaking set
% ≤
Tear strength B
kN/m ≥
Specific density
25℃ g/cm3
For moldingNE-631Milk-white translucent30±25.55005141.08±0.05

Addition of curing agent: liquid 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane, silicone rubber 0.65%.Test piece vulcanization condition: 175℃×5min.
Related material download:
Material Safety Data Sheet (MSDS)for Silicone Rubberr
RoHS and Other Restricted Substances Test for Silicone Rubber
Substances of Very High Concern Test(SVHC)for Silicone Rubber
FDA Test for Food Contact Grade Silicone Rubber for Molding
Phthalates Test for Silicone Rubber
TDS for Food Contact Grade Silicone Rubber for Molding


  • Food grade silicone is often used to make molds of nonfood items for later use as molds to cast food items into the shape of the initial nonfood item. The molds are used for making shapes out of chocolates, butter, gelatin, cheese and candies. Food grade silicone is also used in food processing and packaging to keep foods from coming into contact with unsanitary surfaces while being transported across assembly lines. Hunters and butchers use lubricant food grade silicone to prevent rusting in grinding and cutting machines because it is safe for consumption.


  • Food grade silicone can be found in various forms to make it more practical for the different uses and jobs it is capable of taking on. Found in a tube, food grade silicone often resembles cake icing and can be squeezed onto the objects to be molded. It may also be found as a thinner liquid, which will need to be mixed and then poured over the cast objects. Some food grade silicone can be found in a thick consistency much like clay; this type is used for small, typically flat objects that can be pressed into the silicone to create the mold. Another form of food grade silicone is the aerosol or liquid form used primarily as a lubricant in food packaging and to protect the food from introduction to toxic or unclean conditions.


  • Food grade silicone, as an aerosol or liquid, is flammable when exposed to direct flame, so this type should be avoided in applications requiring such exposure. Food grade silicone in clay-like form and those used to make molds are registered for safe use in temperatures up to 450 degrees Fahrenheit. Users should read specific instructions for each type in order to use them properly and without problems.

Time Frame

  • The amount of time it takes food grade silicone to solidify for use as a mold depends on the type of silicone (poured, squeezed from tube or clay-like) and the brand of silicone. Many will set in just a few hours, while others will take only a few minutes. Some may need to set in room temperature, while others can be placed in the freezer for quicker setting.