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Centrac Friction Modifiers

The Centrac® Friction Modifiers developed by Kelsan Lubricants are available in solid and
liquid forms in three unique friction modifying formulas

Centrac LCF and HPF

LCF (Low Coeffient of Friction)
Centrac® LCF is a 100 percent dry, solid stick lubricant based on a themosetting polymer that has produced proven wheel and rail wear reductions unmatched in the industry. It will not contaminate the environment, equipment and track structure or migrate to the railhead where traction and braking performance must be protected. Documented wear rate reductions have been recorded worldwide, demonstrating that Centrac® LCF provides lubricity surpassing "traditional" lubricants.

coefficient of friction .06

HPF (High Positive Friction)
The patented Centrac® HPF is a 100 percent dry, solid stick friction modifier based on a thermosetting polymer that will delay the onset of short pitch corrugations on the railhead (maximum benefits derived when supported by an effective grinding program) by creating a "high and positive coefficient of friction." When "wheel slip" occurs, HPF provides a proportional increase in friction which reduces slip, wear and noise without affecting braking performance.

coefficient of friction .35

VHPF (Very High Positive Friction)
Centrac® VHPF (Very High Positive Friction) is a patented traction enhancer that reduces or eliminates sanding and enables greater loads to be pulled without additional power. VHPF functions in wet and dry conditions and has demonstrated improved traction on steep grades and better adhesion during braking. A 100 percent dry, nonabrasive, nonflammable solid friction modifier, VHPF is based on a thermosetting polymer stick that changes friction from negative to positive. VHPF provides continuous treatment of the wheel/rail interface, improving traction and increasing wheel life mile after mile. The full-time system frees the locomotive operator from activating/deactivating the traction enhancement system (sander) in order to perform more important functions. It's so simple and cost effective that a VHPF stick depletes only at a rate of one inch per 3,000 miles*, with stick replenishment being the only regular maintenance the system requires.

coefficient of friction .40 - .55