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Rulon® (Filled PTFE) Specifications

904 West 6th Street, Shiner, Texas 77984 USA
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@boedeker.com

1-800-444-3485

BPI Home Page | Applications | Materials Guide | Contact Us!

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GENERAL DESCRIPTION

click to resize photo Rulon ® is the Saint Gobain Performance Plastics tradename for a family of reinforced proprietary PTFE compounds. This unique family of materials offers the combination of high compressive strengths, low coefficient of friction, and excellent abrasion and corrosion resistance while running without lubrication. These materials are used in bearing and seal applications at temperature extremes from -400°F to +500°F (-240°C to +260°C) with or without additional lubricants. Rulon ® materials also have the unique property of no "slip stick" --- no erratic motion at low speeds.

RULON ® GRADES
Rulon ® LR
The best known, most widely used Rulon formulation. Rulon ® LR has a long reputation for high wear resistance, low friction, good electrical properties and chemical inertness. Not only does it make a great sleeve, flange or thrust bearing, it can also be bonded to nearly any surface to provide wear resistance and reduce friction. MAROON in color.

Rulon ® J
This is the best Rulon grade for aluminum and soft mating surfaces. Rulon ® J provides the lowest coefficient of friction of all Rulons, and provides good wear and abrasion resistance. Because this grade is "all plastic", it can be run on non-ferrous and non-metallic mating surfaces such as 316 Stainless, brass, and other plastics. It is used in both bearing and seal applications, but is generally not suitable for use in alkaline or oxidizing acid solutions. DULL GOLD in color.

Rulon ® 641
This FDA compliant material was specifically developed for food and drug applications. Rulon ® 641 is designed to run dry without any moisture or lubrication. WHITE in color.

Rulon ® AR
This was the first commercially available reinforced PTFE and is still quite popular. Rulon ® AR offers the best combination of flexibility and load-carrying properties. It has high wear resistance, low friction, and good electrically insulative and chemical properties. Since, its fillers are ceramic in nature, mating surfaces should be RC35 or harder. It is and used in seals, piston cups, and some bearings. MAROON in color.

Rulon ® 142
A material for extremely heavy loads. Rulon ® 142 is ideal for linear bearing applications such as slideways in machine tools and heavy equipment, and may also be used in expansion joints and bridge pads. This material provides low friction, excellent unlubricated wear properties and good heat dissipation and is etched one side for adhesive bonding to the steel substrate. Rulon ® 142 competes with Busak+Shamban's Turcite ® B Slydway ® product. TURQUOISE in color with a bronze tint.

Rulon ® 123
This FDA compliant material is excellent for wet or submerged applications. Rulon ® 123 provides excellent service against soft and non-ferrous mating surfaces. BLACK in color.

NOTE: Other specialized Rulon ® grades are also available for chemical environments, higher loads, severe wear, or custom applications. Contact us for more information!

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TYPICAL PROPERTIES of RULON® filled PTFE

ASTM or UL test Property Rulon® LR
(maroon)
Rulon® J
(gold)
Rulon® 641
(white)
Rulon® AR
(maroon)
PHYSICAL
D792 Density (lb/in³)
(g/cm³)
0.082
2.27
0.070
1.95
0.081
2.25
0.081
2.24
D2240 Hardness, Shore D 60-75 60 60 60-75
D570 Water Absorption, 24 hrs (%) 0 0 0 0
MECHANICAL
D1457 Tensile Strength (psi) 1,500 2,000 2,000 2,000
D1457 Tensile Elongation at Yield (%) 150 180 175 175
D256 IZOD Notched Impact (ft-lb/in) 6.0 - - 6.0
THERMAL
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
varies widely
with temperature
Cenco-Fitch Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C)

2.30
7.92

1.70
5.86

2.60
8.96

2.30
7.92
D635 Flammability (in/min) None None None None
ELECTRICAL
D149 Dielectric Strength (V/mil) short time, .08" thick 400-500 200 - 400-500
D150 Dielectric Constant at 1 MHz 2.5 2.4 - 2.5
D150 Dissipation Factor at 1 MHz 0.003 0.001 - 0.003
D257 Surface Resistivity (ohm-cm) at 50% RH 2 x 1013 6 x 1018 - 2 x 1013
D257 Volume Resistivity (ohm-cm) at 50% RH 1 x 1015 8 x 1018 - 1 x 1015
RECOMMENDED OPERATING LIMITS
Maximum Load (psi) 1,000 1,000 1,000 1,000
Maximum Velocity with No Pressure (ft/min) 400 400 400 400
Maximum PV Rating (psi x ft/min) 10,000 10,000 10,000 10,000
Maximum Operating Temp (°F / °C) 500 / 260 500 / 260 500 / 260 500 / 260
Minimum Operating Temp (°F / °C) -450 / -240 -450 / -240 -450 / -240 -450 / -240
Minimum Mating Surface Hardness (Rockwell) C35 B25 B25 C35

NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.
All values at 73°F (23°C) unless otherwise noted.
RULON is a registered trademark of Saint-Gobain Performance Plastics Corporation.
TURCITE is a registered trademark of the Trelleborg Sealing Solutions.

http://www.boedeker.com/rulon_p.htm

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Boedeker Plastics, Inc.
904 West 6th Street, Shiner, Texas 77984 USA
USA TOLLFREE : 1-800-444-3485
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail: info@boedeker.com

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