Novus Uniflon 50

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.

Approvals / Compliance

Conforms with FDA21 CFR 177.1550 regulations.


Standard sheet sizes (m): 2.0 x 2.0
2.0 x 1.5
2.0 x 1.0
1.5 x 1.5
1.5 x 1.0
1.0 x 1.0
Thickness range (mm): 0.75 to 3.0

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 <1.0cc/min
Creep Relaxation ASTM F38 35%
Gas Permeability DIN 3535 <0.02cc/min
Liquid Leakage ASTM F37 0.23ml/hr

Novus Uniflon 50 Pressure/Temperature Limits

1. Suitable subject to chemical compatibility.
2. Suitable in some cases but check your application requirements with Flexitallic.
3. Contact the Technical Team for applicatis on with higher temperatures and pressures. Applicable to 1.5mm and below.

The operating temperature of non-asbestos sheet material is related to the thickness of materials selected. Thinner materials give better temperature and pressure properties.

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