Static seals

Static seals

Flat gaskets

Reliable at a broad temperature range

Conforms with market-specific approval requirements

Flat gaskets provide the static sealing of two flat sealing surfaces. Since flat gaskets are especially used in the chemical industry, but as well in the food and beverage and pharmaceutical industry. Therefore the materials must withstand multifaceted and to some extent aggressive media, along with high temperatures and pressures.

FST Flachdichtungen

Flanges connect different parts like valves, fittings, pipes and pumps. For secure sealing, a flat gasket is used; contact pressure is applied to it. Besides compensatory the unevenness of the flange it also seals the pipes. The flat gasket portfolio from Freudenberg Sealing Technologies consists of several types of flat gaskets and adhesive sealing tape. The sealing covers all of these requirements and fulfills market specific approval specifications as well.

Our products in detail

FST FG 306 Flachdichtung

Flat gaskets made of expanded PTFE

Flat gaskets made of expanded PTFE (ePTFE) are distinguished by their unique flexibility and are considered to be particularly pure as well. The FG-360 type TF-0-0, in accordance with DIN 28091-3, from Freudenberg Sealing Technology, consists of 100 percent expanded PTFE.
FST FG360 Joint Sealant

Sealing band made of expanded PTFE

In addition to the conventional punched flat gasket format, Freudenberg Sealing Technologies offers a self-adhesive sealing band (FG-360 Joint Sealant). The Joint Sealant is delivered on special rolls and can be individually customized on-site.
FST Produktvariante

Flat gaskets made of PTFE

The silicate-filled PTFE flat gasket FG-180 is impressive for its outstanding chemical and thermal resistance values. The white FG-180 type TF-M-0 in accordance with DIN 28091-3 consists of silicate-filled PTFE.
FST Produktvariante

Flat seals made of FA

FA flat gaskets consist of fibers, elastomeric binders and fillers and are produced in the calendering process. The blue FG-120 is a graphite seal type FA-A1-0 in accordance with DIN 28091-2.

Related documents



Sealing solutions specially developed for the process industry in accordance with hygienic design and materials with industry-specific approvals.

Sales Sheets


Freudenberg Sealing Technologies offers specially manufactured flat gaskets in a wide variety of shapes – whether classically round or customized according to drawing – particularly fast and flexible.

Relevant market segments

Freudenberg Sealing Technologies Chemical Plant


Aggressive, sometimes toxic media, high pressures as well as extreme temperatures and temperature fluctuations – seals face special challenges in the extraction...

Freudenberg Sealing Technologies Pharmaceutical


The bar has been set especially high for pharmaceuticals when it comes to cleanliness and hygiene. For the highly-sensitive aseptic field, Freudenberg Sealing...