The first barrier against emission in the rim area of an external floating roof is the primary rim seal. It also serves at a safety device reducing the risk of combustible vapours in this area. The design of these primary seals is therefore very important. Our seals solutions provide an optimal combination of reliability and performance with a low total cost of ownership.
Secondary seals need to combine several aspects that can sometimes be contradicting and therefore many designs are available depending on the specific priorities and combinations of safety, storage conditions, stored product properties legislation and weather conditions. The most noteworthy aspect of a secondary seal is safety, a good secondary seal will effectively prevent rim fires regardless of weather conditions.