Pilotseal 500

PILOTSEAL 500 is manufactured from 100% pure multi-directional expanded PTFE. It is soft and conformable and can be compressed with low bolt loads.

PILOTSEAL 500 is ideally suited for low bolt torque applications such as FRP, porcelain, plastic and glass-lined piping and vessels. It has universal chemical resistance (except molten alkali
metals and elemental fluorine).

Approvals and Compliance
Conforms with FDA21 CFR 177.1550 regulations

Sizes Available
Thickness Range 0.5mm to 6.0mm
Standard Sheet Size 1.5m x 1.5m

Physical Properties

ASTM F36 68%
ASTM F36 12% Min
Residual Stress
DIN @ 175°C 32MPa
Creep Relaxation
ASTM F38 32% @ 100°C
16% @ 24°C
Liquid Leakage
ASTM F37 0.02ml/hr (Nitrogen)

PTFE Design

Beldam Crossley can create PTFE products to your specification, creating a product with the correct PTFE grade material that works best for your application.

Contact our team of design engineers with your requirements and see how we can help you.


Beldam Crossley has been moulding PTFE for over half a century. We have since developed a wide range of High Performance Crossflon® materials, each suited to a specific application.

Pilotseal 500