Discover the benefits of kSil®FDA Silicone Sponge Sheeting

Silicone Engineering’s fully FDA approved silicone sponge sheeting is the ideal material for the food, beverage and pharmaceutical industry.

Tested and fully approved by the Food and Drug Administration for the full list of ingredients within the sponge formula, the silicone sponge can be used with complete safety in food applications, whether the food be dry, aqueous or fatty.

FDA silicone sponge rubber has a variety of applications which can be applied in the following sectors;

  • Food and Beverage Manufacturing
  • Bakeries
  • Medical
  • Pharmaceutical

The new material has been independently tested by Toxikon to analyse the total extractable substances, and proven to meet all criteria for extractables required by FDA 21 CFR 177.2600.

The composition of this product has also been positively assessed according to German BfR recommendation XV on silicone for food contact (BfR Empfehlungen XV zu Silicone).

We also manufacture other grades of silicone sponge sheets

Food Safe

Our food grade silicone sponge can be applied in a number of forms, most commonly as gaskets and seals to provide excellent sealing properties in machinery or units due to its exceptional compression set (5%) and high elongation 500% to 600%. With its extremely low water absorption properties, water, dust and dirt ingress is prevented from entering the machinery and more importantly the product.



Typical Value


Kg.m-3 (lb.ft-3)

420 (26)

Compression Stress 40% Strain

kPa (psi)

90 (13)

Elongation to Failure



Compression Set 50% comp.

24 hrs. recovery 22hours

@ 70˚C (158˚C)



All known FDA sponge products currently on the market, only state ‘compliance to’ FDA standards such as the extraction requirement. This does not mean the product is fully FDA compliant. Silicone Engineering has developed a silicone sponge that can be officially called FDA approved. The sponge rubber is prepared using only ingredients that are permitted for use by FDA 21 CFR 177.2600.

Along with full FDA approval, silicone’s high temperature resistance makes it a material of choice when high heat is being applied to food and beverage processes. With a standard temperature range from 230°C to -60°C, silicone can be applied in extreme environments whilst maintaining its high performance sealing properties.

In addition to our FDA silicone sponge, our solid silicone is fully compliant with FDA regulation 21CFR177.2600, EC1935/2004 as well as being WRAS approved (Water Regulations Advisory Scheme) for contact with drinking water.

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Technical data is available on all Silicone Engineering products. For more details, download the product information or speak to one of Silicone Engineering’s dedicated specialists.

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