Why Barium Sulfate?

TF 1580 is a restructured PTFE sheet filled with barium sulfate. The manufacturer specifies it for diverse chemical services, particularly strong bases; however, compatibility must always be confirmed for actual concentration and operating temperature. TEALON grades differ in their filler composition and mechanical performance. It is not enough to simply note that the base matrix is PTFE.

Mechanical Data to Compare

TEADIT notably publishes a compressibility rating of 4 to 10% and a minimum recovery of 40% for TF 1580, whereas TF 1570 is significantly more compressible. Creep relaxation behaviour directly impacts seal integrity following bolt-up and operational thermal cycling. Selection also depends on flange class, gasket thickness, and application-specific regulatory requirements.

Reviewing the Replacement Specifications

Identify the existing grade, chemical media, continuous and peak operating temperatures, system pressure, flange geometry, and surface finish. Certifications referenced by TEADIT must not be assumed for alternative products or different datasheet revisions. Benchmark the TF 1580 engineering documentation against the proposed candidate and validate installation procedures.

To compare gasket constructions: Garlock GYLON 3510 and KLINGER top-chem 2006. While barium sulfate is common to both, metallic reinforcements, bolt torque requirements, and service limits may differ.