Industrial equipment often remains in service long after the original manufacturers have discontinued support. As drawings are lost, part numbers become obsolete, and suppliers disappear, sourcing replacement gaskets can become a major challenge for maintenance teams, engineers and restoration specialists.
In industries where sealing performance is critical, quality cannot be left to chance. Whether a gasket is being used in automotive systems, industrial equipment, fluid handling assemblies, or heavy machinery, manufacturers and OEMs need confidence that every component will perform consistently under real-world conditions. That is where PPAP approval plays a vital role.
Dobson Gaskets has been recognised on a global stage, earning the prestigious Supplier Excellence Recognition Award from Caterpillar Worldwide, a distinction that places the company among the very best in an extensive international supply network.
PTFE is often specified as a default sealing material for chemically aggressive environments. However, in practical engineering terms, PTFE is not a single material. Virgin PTFE, filled PTFE, and expanded PTFE (ePTFE) exhibit fundamentally different mechanical behaviours, particularly under load, over time.
Hydraulic systems depend on a simple principle: contain pressurised fluid reliably and consistently. When sealing fails, performance drops, safety risks increase, and downtime becomes costly. One of the most overlooked causes of hydraulic system sealing failure is a change in hydraulic oil specification.