PRODUCT TYPE: PTFE Jointing & Sealing

Novus Uniflon 51 is a superior performance biaxially orientated PTFE sheet material with a silica filler.


Novus Uniflon 51 is a general purpose grade for sealing applications across the whole pH range. It is particularly suitable for use with strong acids (except hydrofluoric acid) and alkalis. Other applications include solvents, fuels, water, steam, and chlorine. (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 2.2g/cc
Tensile Strength ASTM F152 15MPa
Compression ASTM F36 7%
Recovery ASTM F36 40% min
Residual Stress DIN @ 175° C
Creep Relaxation
ASTM F38 23%
Gas PermeabilityDIN 3535 <0.01cc/min
Liquid LeakageASTM F37 0.21ml/hr