*568-209FEP ENCAPSULATED SILICONE

The TES70209 is an AS568-209 red PTFE-Encapsulated Silicone 70 Shore A O-Ring with an inside diameter of 0.671 in (17.04 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.949 in (24.1 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. Source specification: ORING 70 Durometer.

The material holds up against steam, strong acids and solvents, and nearly all process chemicals. That behavior comes from the compound itself: PTFE-Encapsulated Silicone is valued for a non-contaminating, non-stick sealing surface and excellent recovery across extreme temperature cycling. The material carries a published service range of -75°F (-59.4°C) to 400°F (204.4°C). It is not the right choice where tight-radius dynamic flexing or installation over sharp edges are present.

Maintenance and OEM teams specify it across chemical processing, food and beverage processing, and pharmaceutical manufacturing.

TES70209 ships individually. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.