Teflon® O-Rings and High Performance Plastics

High Performance Plastics

Material & Trade Names
Manufacturing Method
Available Sizes
Relative Cost
Lead Time
Applications
UHWM-PE Machined Parts .020" to 12.00" Dia. Very Low 3-5 weeks Bushings, Guides, Machined custom parts, Pads, Plugs, Rollers, Seals, Spacers, Supports, U-cups, Washers, Wear rings
PTFE (PTFE) Machined Parts .020 to 60.00" Dia. Low 4-6 weeks Seals, Back-up rings, Custom machined parts, O-rings, Seals, Skived tape, Metal Spring Energized Seals, Valve seats, Washers
PEEK (Arlon, Ketron®) Machined Parts & Stock Shapes .020" to 12.00" Dia. Medium 6-8 weeks Back-up rings, Bearings, Blocks, Bushings, Guides, Rollers and wheels, Plugs, Seals, Spacers, Supports, Valve seats, Washers, Wear rings, And many more custom parts
POLYIMIDE (Vespel®, Altymid®) Machined Parts & Stock Shapes .020" to 12.00" Dia. Very High 6-10 weeks Custom machined parts, Clamp rings, Ferrules, Gears, Rings, Washers

Compatibility

Material & Trade Names
Acids Weak
Chlorinated Solvents
Alkalies Weak
Alkalies Strong
Autoclavable
High Strength
UV Stable
Higher Impact Strength
Bearing / Low Wear
High Purity
Wafer Processing
Low Outgassing
Cryogenic Material (-238° F)
High Temp (>300° F)
Cold Temp (-0° F)
UHWM-PE
PTFE (PTFE)
PEEK (Arlon, Ketron®)
POLYIMIDE (Vespel®, Altymid®)


UHMW-PE (Ultra High Molecular Weight Polyethylene)

UHMW-PE is lightweight plastic with excellent overall physical properties and outstanding abrasion resistance.

Features

Good chemical compatibility, meets FDA, USDA and 3-A dairy requirements, excellent abrasion resistance, impact resistant, moisture resistant and good cryogenic capabilities -280° F to + 175° F.

Applications

Seals, bushings, guides, pads, plugs, rollers, spacers, u-cups, wear rings, washers

Compound
Temperature Range (°F)
Specific Graivty
Tensile Strength (PSI)
Elongation %
Wear Factor (K)X10-10 IN 3 -MIN/LB-FT-HR
UHMW-PE -280 to 175° 0.93 2900 300 30


PTFE (Polytetrafluoroethylene), PTFE, Avalon®, Hostaflon®

PTFE is the most widely used fluoropolymer material with an almost universal chemical compatibility and wide range of temperature capabilities. PTFE offers unique properties which make it suitable for a wide range of applications.

Features:

Best chemical compatibility, low friction, meets FDA, USDA and 3-A dairy requirements, excellent moisture resistant and good cryogenic capabilities down to -350° F.

Applications

Seals, bushings, back-ups, guides, pads, plugs, rollers, spacers, o-rings, wear rings, washers.

Compound
Temperature Range (°F)
Specific Graivty
Tensile Strength (PSI)
Elongation %
Wear Factor (K)X10-10 IN 3 -MIN/LB-FT-HR
Virgin PTFE -350 to 550° F 2.16 3500 300 2500
Pigmented PTFE -268 to 550° F 2.16 3500 300 150
Graphite Filled PTFE -268 to 550° F 2.05 2000 180 6
Carbon Filled PTFE -268 to 550° F 2.08 2000 200 8
Polymer Filled PTFE -268 to 550° F 2.01 3000 250 2
Mineral Filled PTFE -268 to 550° F 2.24 2500 250 2


PEEK (Polyetheretherketone) Arlon®

PEEK is a high performance, high temperature engineered thermoplastic resistant to a wide range of environments.

Features:

Good chemical compatibility, high strength, good hot water and steam resistance, tough, good impact resistance.

Applications

Seals, bushings, back-ups, guides, pads, plugs, rollers, spacers, wear rings, washers

Compound
Temperature Range (°F)
Specific Graivty
Tensile Strength (PSI)
Elongation %
Wear Factor (K)X10-10 IN 3 -MIN/LB-FT-HR
Virgin PEEK -100 to 500° F 1.32 12000 30 200
Glass Filled PEEK -100 to 500° F 1.45 18000 2.5 50
Carbon Filled PEEK -100 to 500° F 1.46 20000 2.2 24


POLYIMIDE Vespel® Altymid®

Polyimide polymers offer a broad combination of temperature and chemical resistance, as well as mechanical toughness and excellent lubricity for a wide range of applications.

Features:

Good chemical compatibility, high Temperature resistance (up to 600° F), high strength, high compressive strength, high stiffness.

Applications

Bushings, guides, pads, plugs, rollers, spacers, wear rings, washers, plasma tips.

Compound
Temperature Range (°F)
Specific Graivty
Tensile Strength (PSI)
Elongation %
Wear Factor (K)X10-10 IN 3 -MIN/LB-FT-HR
Unfilled Polyimide -100 to 600° F 1.35 10000 4 12
Graphite Filled Polyimide -100 to 600° F 1.4 9000 4 8

PTFE, Vespel® are registered trade names of Dupont.

Hostaflon® is a registered trade name of Dyneon.

Altymid®, Arlon®, Avalon® are registered trade names of Greene, Tweed & Co.

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