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Ensinger PEI
Dalau Dalcon 025 75% Virgin PTFE, 25% Glass Fiber, Blue
Categories: Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE); Polytetrafluoroethylene (PTFE), Glass Filled, Molded

Material Notes: Applications & Industries:
General: 25% Glass fibre is the most widely used filler. It improves the creep resistance, compressive strength, rigidity, and wear of PTFE, both at low & high temperatures. It is chemically stable (except to strong alkalis & hydrochloric acid - HF). 25% glass filler improves the wear resistance properties of PTFE.
Chemical: Dynamic & shaft seals; and Seals & gaskets. Flat gaskets are used to seal flanges in pipelines.
Construction: Bridge bearings. Slide bearings.
Engineering: Anti - friction bearing cages & bearing plates; Bearings, bushes, shaft bearings / seals (in combustion engines); Chain tension slide bearings. Film bearings. Multi - layer composite bearings; Laboratory equipment. Measuring & control technology; Pipe supports. Glandless valves & pumps, valve seats; Piston rings in hydraulic systems; and Piston rod packings used in compressor plunger pumps & valves.

CHEMICAL RESISTANCE: The strength of the carbon - fluorine bond and the shielding of the carbon chains by the fluorine atoms result in a chemical inertness which is virtually universal, except alkali metals, fluorine under certain conditions, and some fluorine compounds at elevated temperatures. Resistant to organic solvents. This compound has a fair resistance to the following chemicals: Ammonium hydroxide, Bromine, Cromic acid, Hydroboric acid, Hydrochloric acid, Hydrocyanic acid, Nitric acid (0 - 50%), Phenol, Sodium hyrdroxide. This compound has an unsatisfactory resistance to the following chemicals: Fluorosilicic acid, Hydrofluoric acid, Hydrogen sulphide (solution), Sodium silicate.

Information provided by Dalau

Available Properties
  • Density, BS2782:Pt6
  • Deformation, ASTM D621, Permanent Deformation
  • Deformation, ASTM D621
  • Deformation, ASTM D621, 150°C
  • Deformation, ASTM D621
  • Hardness, Shore D, ASTM D2240
  • Tensile Strength, BS2782:Pt3, Molding Direction
  • Elongation at Break, BS2782:Pt3, Molding Direction
  • Flexural Yield Strength, ASTM D790
  • Flexural Modulus, ASTM D790
  • Compressive Strength, ASTM D695
  • Compressive Strength, ASTM D695
  • Volume Resistivity, ASTM D257
  • Surface Resistance, ASTM D257
  • Dielectric Constant, ASTM D150
  • Dielectric Constant, ASTM D150
  • Dielectric Strength, ASTM D149, Air
  • Dielectric Strength, ASTM D149, Oil
  • Dissipation Factor, ASTM D150
  • Dissipation Factor, ASTM D150
  • CTE, linear, Parallel to Flow, ASTM D696
  • CTE, linear, Transverse to Flow, ASTM D696
  • Thermal Conductivity, ASTM C177, Molding Direction
  • Melting Point, ASTM D3417
  • Maximum Service Temperature, Air
  • Maximum Service Temperature, Air, Short Periods
  • Minimum Service Temperature, Air
  • Flash Point, ASTM D1929
  • Oxygen Index, ASTM D2863
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