Industrial and automotive assemblies must ensure tightness with air, cooling liquid,  lubricant, or simply water. Seals confine substances within a compartment and prevent them from mixing with other substances, thus ensuring retention and exclusion at the same time.

However, if you wish to enhance the seal integrity, NVH control, lubrication, air and fluid delivery, wear reduction, reliability, fuel economy and performance of your assemblies, then opt for silicone adhesives and sealants as they are great for high-strength component assembly bonding and long-lasting seals and gaskets.

Below, we have compiled a glossary of these three key concepts.

Sealing: The purpose of a seal is to ensure tightness ; however, not all seals are the same. Static seals, for example, as opposed to dynamic seals join two non-moving parts to create static tightness. The seal is simply positioned between two parts, without requiring further action.

Bonding: This operation involves forming a seal by bonding two components together that may be composed of two different materials. Because the materials are different, the components will not evolve in the same way or undergo the same expansion when heated. This is where silicone plays an important role as its flexibility allows it to adapt to the varying behaviors of a wide range of materials.

Gasketing: The purpose of gaskets, like seals, is to ensure tightness. In this method, the elastomer will be vulcanized to create a soft mechanical part that will be compressed between the two part in order to ensure tightness. Cured in Place Gaskets (CiPG) are cured before assembly while Formed in Place Gaskets (FiPG) are cured after assembly.


Photo credits: Fotolia / Kadmy

Clément Midroit

Posted by Clément Midroit

Digital Marketing Specialist