Thursday, April 26, 2018
Brake Pad Part No: 15Q-8481K

Brake Pad Guide Brake Pads Chart

Brake Pads
Street Performance / Racing Pads

Pad#:   D412
Compound:   PolyMatrix Q
Wilwood Brake Pad Plate #D412

Wilwood Brake Pad Plate #D412
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Product Number: 15Q-8481K     Price: $134.61
Pad Dimensions
Thickness(in): Area(in²): Volume(in³): Beded:
.60 N
Temperature & Friction Ratings
Peak Temperture Rating: Peak Friction Rating:
700 to 800 F. 0.47
Dust & Noise Ratings
Dust Production Rating: Pad Noise Rating:
Very Low Very Low

Performance Characteristics
  • Medium friction, smooth engagement, low abrasion on iron rotors.
  • Flat torque curve. Can be used with aluminum rotors on Sprint Car applications.
  • Low wear rate at low to medium temperatures
  • Medium friction, smooth engagement, low abrasion on iron rotors.

Vehicle Applications
Driving EnvironmentVehicle Sub-TypesApplication Duty
Junior Dragster Medium Duty
Street Rods  Medium Duty
Street Performance DomesticMedium Duty
Street Performance ImportMedium Duty
Motorcycles Medium Duty
Drag Racing Medium Duty
Off Road Light Duty
Kart Medium Duty
Power Sports ATV, SnowmobileMedium Duty
Industrial Medium Duty

Pad Illustration and Dimensions
Wilwood Brake Pad Plate #D412 Large Drawing

Wilwood Brake Pad Plate #D412 Large Drawing

Compound Characteristics
PolyMatrix Q

PolyMatrix Q

Compound Data Sheet

  • Sprint cars with aluminum rotors.
  • Disc brake conversions on street rods, muscle cars, custom show cars, and all moderate performance applications where low noise and dust are important.

  • High performance ceramic based street formula.
  • Lowest dust and noise.
  • Compatible with all types of steel or iron rotors.
  • Aluminum rotors for racing.
Compound Temperature Range & Torque Values
Temperature range and overall friction value are the primary considerations for pad selection. The pads must be capable of maintaining the proper amount of friction for stopping power within the temperatures that will be realized on the track during the event. Then, overall wear rate must be considered. For most asphalt and road race applications, compounds in the high temperature ranges over 1000°F range are usually necessary. Dirt track, drag race, and street performance applications usually operate at temperatures between 500° and 1000°F. Keep in mind that these are general ranges, and not absolute values. Many factors and unforeseen influences can affect brake temperatures. The best indicator for pad selection will always be on track performance. If pad fade (friction loss) due to overheating occurs, then improved cooling, a heavier rotor, or a higher temperature range pad may all become necessary.