Novus Uniflon 58

Novus Uniflon 58 is a superior performance PTFE based material with highly conformable properties on the surface layers with a biaxially orientated pure PTFE core.


Novus Uniflon 58 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 pH range with exception of molten alkali metals and fluorine gas.

Approvals / Compliance

Conforms with FDA21 CFR 177.1550 regulations.


Sheet size (m): 1.5 x 1.5
Thickness range (mm): 1.5 to 3.2

Other thicknesses may be available on request

Physical properties

Thickness   1.5mm
Density   1.1g/cc
Tensile Strength ASTM F152 9MPa
Compression ASTM F36 55%
Recovery ASTM F36 24% min
Residual Stress DIN @ 175°C 28MPa
Gas Permeability DIN 3535 0.01ml/min
Liquid Leakage ASTM F37 1.6ml/hr

Novus Uniflon 58 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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