Sealing materials for the food industry - Food safe seals
At Rehm Dichtungen Ehlers GmbH, sealing materials for the food industry include all materials that have FDA conformity or approval in accordance with EC 1935/2004. FDA conformity is the American approval for food contact. The EG 1935/2004 is the European equivalent. We have a range of different sealing materials for food contact. We use these to manufacture your food-safe gasket or flat gasket using our various production processes.
Regulations for use in the food industry
In the field of static seals, two regulations have emerged that govern their use in the food industry. The American FDA and the European EC No. 1935/2004 are directives that relate to materials or sealing materials that are intended to come into contact with food. Both FDA and EC 1935/2004 require formulation testing according to a positive list. For applications in the drinking water sector, however, other approvals are required, such as KTW or WRAS approval.
FDA conformity is required if the seals for the food industry are used in productions that produce, process, or import food for the US market. With the introduction of EC 1935/2004, FDA compliance is no longer required in the European area to be approved as a seal for food contact.
Available sealing materials for food contact at Rehm Dichtungen Ehlers GmbH
We, Rehm Dichtungen Ehlers GmbH, have a wide range of sealing materials that meet the required guidelines (FDA conformity or EC 1935/2004 approval). We can offer you food-safe gaskets or flat gaskets made of almost all material groups. If required, we can also equip the food-safe seals with a self-adhesive film for simplified assembly.
Elastomer and fiber gaskets
For gaskets or flat gaskets that contain a high proportion of rubber or that contain rubber as a binder, as is the case with our fiber gaskets, testing of the requirements is based on BfR Guideline XXI, which deals with rubber products in the food sector. In this context, BfR stands for the Federal Institute for Risk Assessment. As is customary with EC 1935/2004, verification takes place with the aid of a formulation test based on a positive list. For FDA conformity, individual measure 177.2600 (rubbers) is applied to these sealing materials.
In addition to silicone, we can also offer you seals made of NBR and NR with FDA or EG1935/2004 approval from the manufacturer Semperit. In elastomers we have the following materials approved for food contact.
In the case of rubber-bonded fiber materials, we have a wide variety of materials from different suppliers.
- Frenzelit seals
- Klingersil seals
- Top-Chem 2000
- AFM seals
In the context of food-safe PTFE seals, which are to be assigned to the plastic seals, the individual measures 177.1550 (FDA) and EU NR. 10/2011 (EC 1935/2004) are used as a basis for FDA conformity and approval according to EC 1935/2004. In the case of EU No. 10/2011, both a formulation test based on a positive list and migration tests with various simulant media take place. At Rehm Dichtungen Ehlers GmbH, the following PTFE sealing materials for food contact are available for you.
Application areas for food grade gaskets
Food-safe gaskets and seals for the food industry are used in all areas of the food industry where the highest quality and hygiene requirements are necessary. The flat and flange gaskets used are characterized by resistance to intensive cleaning processes as well as abrasion resistance, so that all requirements for tightness can be maintained over the long term. For these reasons, seals for the food industry are used in control units, hygienic control cabinets, and all machines and equipment in the food processing sector.
For the production of your seal for food contact, you can choose from our various materials, depending on the respective application. We will be happy to advise you on the choice of the right material for your food contact seal. For this purpose, please contact our customer service, which will provide you with comprehensive advice.