new brake pads
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Q:What are sintered pads?
A:Sintered pads are made of a complex mix of metallic powders (to absorb heat), refractory material (to provide friction), friction modifiers (to alter feel), graphites (to minimise rotor wear and eliminate noise), mixed together, pressed to form the shape, then sintered at high temperature and pressure.
Q:What does friction rating mean?
A:Ever noticed two letters on the back of a pad? Normally it is GG or HH.
Friction rating is measured by the torque produced (directly related to friction) by a pad material rubbing at a defined load against a cast iron drum. The torque is measured cold and hot and the friction level equates to a letter. Letter A is low friction, letter H is the highest. So a HH pad is more powerful hot and cold than a GG pad.
Q:Are sintered and/or HH rated pads hard on rotors?
A:Yes.
My advice: buy non-sintered pads.
A:Sintered pads are made of a complex mix of metallic powders (to absorb heat), refractory material (to provide friction), friction modifiers (to alter feel), graphites (to minimise rotor wear and eliminate noise), mixed together, pressed to form the shape, then sintered at high temperature and pressure.
Q:What does friction rating mean?
A:Ever noticed two letters on the back of a pad? Normally it is GG or HH.
Friction rating is measured by the torque produced (directly related to friction) by a pad material rubbing at a defined load against a cast iron drum. The torque is measured cold and hot and the friction level equates to a letter. Letter A is low friction, letter H is the highest. So a HH pad is more powerful hot and cold than a GG pad.
Q:Are sintered and/or HH rated pads hard on rotors?
A:Yes.
My advice: buy non-sintered pads.
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