Compliance is per grade, not per supplier
A supplier can hold a food-contact certificate for one compound and sell you a different one. The document that matters is the one that covers the specific grade in your part. Ask which grade is documented before you ask what certifications the factory holds - the second question is easy to answer vaguely.
Cleaning agents are harder on seals than product is
In food and pharmaceutical equipment, the seal usually fails because of what it is cleaned with, not what it touches in service. Caustic washes, steam and sanitiser cycles attack compounds differently. Give us the cleaning regime as well as the product contact - it changes the compound recommendation.
Where seals fail in processing equipment
Door gaskets on ovens and autoclaves, lids on mixers and vessels, inspection hatches, and pipework couplings. Most are irregular shapes that get opened daily, so compression set and tear resistance matter more than ultimate temperature.
Colour and metal-detectable options
Visible seals in a food plant are often specified in a colour that contrasts with the product, so a fragment is noticed. Some lines require detectable compounds. Both are specified at compound selection, not added later.
What we need to quote
The product contact, the cleaning agent and cycle, the operating temperature range, and whether the part is opened daily or sealed for months. With those four we can tell you which documented grade fits.
Profiles for this application
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Working on something like this?
Send the drawing, cross-section, operating temperature and what the seal has to resist. We will tell you whether a stock profile fits or the part needs extruding, and quote both.