Why Choose a Filled PTFE Sheet?

Compounding PTFE with inorganic fillers is engineered to improve specific mechanical properties compared to virgin PTFE, particularly under bolt load. Durlon 9000 must be specified based on its dedicated gasket factors, curves, and installation requirements. Dimensional stability is critical in processes where thermal and chemical cycling can promote creep relaxation.

Difference Between Durlon 9000 and 9000N

Durlon manufactures 9000 in blue and 9000N in an unpigmented white version. The latter is ideal when high purity or color-contamination control is required. However, it would be incorrect to assume both products are identical across all applications: always consult the technical datasheets and regulatory approvals specific to each grade.

How to Evaluate a Replacement

Before assessing an alternative PTFE sheet, verify the process parameters, media and concentration, operating temperatures, thermal cycling, flange class, and gasket thickness. Next, compare the required seating stress, stress relaxation, chemical compatibility, and required industry approvals. Catalogue limits are no substitute for a thorough pressure-temperature (P x T) analysis.

To compare gasket designs: Durlon 9000N and Durlon 9002. The type of filler or reinforcement directly affects sealing performance. Belonging to the same PTFE family does not guarantee functional equivalence.