User's Manual

Rotor and Pad Wear
The rotor wear and pad loss tests measures the difference in pad/
rotor thickness from the beginning to the end of the dynamometer
evaluation. Rotor thickness and pad loss were measured in inches,
and the best performers had the lower measurements in each test.
The Formula Blue
®
Medium-Duty 109 series premium pad proved
to be kind to rotors, producing rotor wear equal to or less than other
premium brands. The 111 series heavy-duty pad also performed
better than, or equal to, the other heavy-duty offerings tested.
And similar results were found in the pad loss test. The 109 series
pad performed extremely well in comparison to the premium
competitors tested, as did the 111 series compared to other heavy-
duty brands.
By optimizing pad and rotor wear, Formula Blue pads are able to
deliver the delicate balance of stopping performance and brake life
to lower the operating cost in the widest variety of hydraulic brake
applications.
Braking Effectiveness
Brake pad effectiveness was determined by measuring the ratio
between the pad-to-rotor output torque and the pressure applied
to the brake pedal. Traditionally, this is called the “coefficient of
friction.” The brake effectiveness ratio is summarized as an average
and a standard deviation of the three dynamometer effectiveness
test segments.
For hydraulic disc brakes, brake effectiveness should be a value
between 0 and 1 (the higher the better), with the typical range being
between 0.25 and 0.35. The ideal standard deviation score is zero.
The 109 series pad scored the highest in brake effectiveness
among the four competitors tested and the second-best in standard
deviation. Results for the 111 series were even more impressive.
The 111 series pad scored best in both brake effectiveness and
had the lowest deviation as compared to other brand-name heavy-
duty pads tested.
Talk to your Account Manager for additional details or answers
to any questions you may have about the comprehensive
testing program.
Rotor Wear Comparisons: Premium and Heavy-Duty
Rotor Wear (in.)
Formula Blue
111Series
Formula Blue
109 Series*
0.001 0.0020.000 0.003 0.004 0.005 0.006 0.007
Brand Z
Brand Y
Brand X
Brand C1
Brand B
Brand A
Brand C2*
SOURCE: Link Engineering; Test method #: UI-169 “Modified” (except where noted*; UI-169-”Full”)
Brands
Less is Better
Formula Blue
®
111 Series Pads
Display Equivalent-to-Superior Rotor Wear
Rotor Wear Comparisons: Premium and Heavy-Duty
Std Dev (Lower is Better)
Average Effectiveness (Higher is Better)
0 35
0 30
0 25
0 20
0 15
0 10
0 05
0 00
0.29
0.27
0.26
0.25
0.27
0.32
0.27
0.30
0.31
0.09
0.04
0.10
0.02
0.07
0.09
0.10
0.03
0.06
Brake Effectiveness ratio between pad-to-rotor output and the pressure applied to the brake pedal
Averages based on summarized pre and post burninsh and post fade test segment values; St Dev: Based on variation between test segments
SOURCE: Link Engineering; Test method(s) #: UI-169 “Modified” (except where noted*; UI-169-”Full”)
Average Brake Effectiveness
Formula Blue
109 Series*
Brand A Brand B Brand C1 Brand C2* Formula Blue
111Series
Brand X Brand Y Brand Z
Medium-Duty Formula Blue
®
111 and 109 Series Disc Pads
Display Equivalent-to-Superior Brake Effectiveness
Pad Loss Comparisons: Premium and Heavy-Duty
HD-Inner Pad Loss (in.)
Formula Blue
111Series
Brands
Less is Better
Formula Blue
109 Series*
0.05 0.15 0.25 0.35
Brand Z
Brand Y
Brand X
Brand C1
Brand B
Brand A
Brand C2*
SOURCE: Link Engineering; Test method #: UI-169 “Modified” (except where noted*; UI-169-”Full”)
Formula Blue
®
109 and 111 Series
Display Equivalent Pad Loss