PRODUCT TYPE: PTFE Jointing & Sealing

Novus Uniflon 50 is a superior performance biaxially orientated PTFE sheet sealing material with highly conformable properties, ideally suited to standard and irregular flanges.


Novus Uniflon 50 is specifically designed for use in low bolt loaded irregular flanges. Typical flanges include glass lined, ceramic, plastic coated or uneven and badly distorted flanges. It is suitable for sealing all chemicals across the whole pH range with the exception of molten alkali metals. (See the chemical resistance chart for information).

Approvals / Compliance

  • Conforms with FDA21 CFR 177.1550 regulations.


Thickness range:

  • 0.75mm to 3.0mm

Standard sheet sizes:

  • 1.0m x 1.0m
  • 1.5m x 1.0m
  • 2.0m x 1.0m
  • 1.5m x 1.5m
  • 2.0m x 1.5m
  • 2.0m x 2.0m

Typical Physical Properties

Thickness 1.5mm
Density 1.4g/cc
Tensile Strength ASTM F152 11MPa
Compression ASTM F36 40%
Recovery ASTM F36 30% min
Residual Stress DIN @ 175° C
Creep Relaxation
ASTM F38 35%
Gas PermeabilityDIN 3535 <0.02cc/min
Liquid LeakageASTM F37 0.23ml/hr