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Avalon 56

Polytetrafluoroethylene

Supplied by Greene, Tweed & Co.

The technical datasheet with complete property values for Avalon 56 is available to members of the Prospector Plastics Database.
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Product Description
PTFE is preferred for use in many pharmaceutical-sealing applications. Its chemical inertness and ultra-low level extractables provide pharmaceutical process and validation engineers with a safe material to use in almost any application. PTFE is visco-elastic, providing a functional seal when other fluorinated plastics such as PFA or FEP cannot. However, because virgin PTFE will creep under load its ability to provide a reliable seal during temperature cycling is limited.

Ferrule gaskets made from Avalon® 56 provide a level of performance superior to other PTFE materials used in the pharmaceutical and hygienic fluid handling industries. Greene, Tweed's Avalon 56 uses the latest generation modified PTFE. Modified PTFE contains a small amount of a perfluoroether to improve creep resistance, compressive strength and permeation resistance. Modified PTFE is not only the material of choice for PTFE-faced diaphragm materials, but it is also FDA compliant.

While other gasket manufacturers fabricate gaskets by directly molding the finished part, Greene Tweed machines Avalon 56 sanitary gaskets and custom shapes from isostatic-molded billets to provide optimal physical properties and tighter tolerances, easing the installation process.

Avalon 56 virgin PTFE seals deliver improved sealing performance over standard PTFE.
Avalon 56 is available in all sanitary gasket sizes, as well as custom shapes.
General  
Material Status 
  • Commercial: Active
Availability 
  • North America
Features 
  • Good Chemical Resistance
  • Good Compressive Strength
  • Good Creep Resistance
  • High Elasticity
  • Low Extractables
Uses 
  • Gaskets
  • Pharmaceuticals
  • Seals
Agency Ratings 
 
Appearance 
  • White
Forms 
  • Pellets
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
 ASTM D1457
Mechanical
Nominal Value
Unit
Test Method
Tensile Strength (Yield)
psi
 ASTM D638
Tensile Elongation (Yield)
%
 ASTM D1457
Shear Strength     ASTM D732
80°F
psi
  
100°F
psi
  
150°F
psi
  
200°F
psi
  
300°F
psi
  
400°F
psi
  
Coefficient of Friction 2      
vs. Itself - Dynamic
 
  
vs. Itself - Static
 
  
Deformation Under Load (72°F, 2000 psi)
%
 ASTM D621
Wear Factor
10^-10 in³·min/ft·lb·hr
 ASTM G77
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Avalon 56, Avalon , Avalon56, 56, Polytetrafluoroethylene, PTFE, Fluoropolymer, Greene, Tweed
Features
Features may also be described by the following terms: Good Chemical Resistance, Chemical Resistant, Low Extractables, High Elasticity, Highly Elastic, Good Compressive Strength, Good Creep Resistance, Creep Resistant.
Uses
Uses may also be described by the following terms: Gaskets, Gasketing.
Agency Ratings
This plastic material has 2 certifications from the following agencies (the number in parentheses shows the number of certifications for that agency): USP (1), FDA (1).
Notes
1Typical properties: these are not to be construed as specifications.
233.3 psi
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.