Saint-Gobain Rulon classification and application

April 28, 2023

Saint-Gobain Rulon classification and application

Rulon® PTFE is a versatile and high-performance material, which belongs to the series of proprietary, homogenous filled materials that provide low friction and high wear life. This material is often used in automotive and industrial applications, and can tolerate adverse conditions such as aggressive chemicals, dry running, and abrasion with the potential to work under extreme pressure and temperature ranges. Over a period of time, several Rulon® grades have been developed for particular custom applications because they can be custom made into wear components, cup seals, piston rings, bearings, and other major parts.

rulon series

Properties and uses of Rulon series materials

Material grade	Color	Characteristic	Application
Rulon®AR	Light maroon	More flexible than Rulon® LR	Suitable for sealing and adhering to the surface of slide rails, used for shaft seals of automobiles and cups of fuel dosing pumps.
Rulon®LR	Maroon	Extremely strong chemical stability	Suitable for rubbing against most hard steels, can also be used on mild steels, runs better on harder surfaces.
Rulon®J	Dark gold	Excellent friction performance	It works well on low-hardness surfaces such as 316 stainless steel, aluminum, low-hardness steel, brass, plastic, etc. It is an ideal material for bearings and wear parts.
Rulon®641	White	FDA certified material, excellent bearing capacity and wear resistance	Suitable for many mating surfaces, including mild steel, 303 and 316 stainless steel and hard materials, it is an ideal material for bearings in the food and pharmaceutical industries.
Rulon®V2	Black	Low friction, wear resistance and good heat dissipation performance	DWGV (European) certified drinking water material. Suitable for most metal and soft surfaces.
Rulon®123	Black	Average wear resistance, excellent chemical resistance	FDA, USDA, NSR certified materials, the price is slightly lower, and black debris will be produced after long-term use, which is not suitable for occasions that require electrical insulation. Avoid use in ultra-dry and vacuum applications.
Rulon®488	Dark turquoise	Ultra-low wear in extremely dry environments	Shaft sleeves widely used in drying equipment
Rulon®957	Speckled green	Strong carrying capacity	Noise-reducing and low-abrasion materials are widely used in commercial or residential clothes dryers.
Rulon®XL	Brown	Wear-resistant, not easily deformed under load, excellent chemical resistance	Suitable for most mating surfaces, avoid use in alkaline environments, and is the best material for vacuum applications.
Rulon®142	Dark blue green	With low wear, high heat dissipation and good dimensional stability	The non-deformable feature greatly reduces the misalignment that is easy to occur when used as a bearing material. It is an ideal material for machine tools and should be avoided in strong acid and alkali environments.
Rulon®945	Black	Loads are not prone to wear or deformation	Suitable for hard mating surfaces such as hardened steel. It is not suitable for environments that require electrical insulation performance.
Rulon®1045	Dark gold	Chemical resistance, ductility and abrasion resistance	Applied to bearings or sliding surfaces