I never smeared copper grease,
or any grease on the back of pads.
Where is is used is on the locating lugs of the steel backing material,
nowhere near the friction material.
The whole idea is to help reduce friction/rust on the interface between the pads lugs and the calliper carrier.
And copper grease is an anti sieze compound.
Without it and it wouldn't be the first time,I have had to remove callipers then the carrier and smack the worn/siezed pads out of the carrier in a vice using a 4 lb hammer!
Most brakes are intended to have the pads slide in the carrier to compensate for pad wear.
If the sieze on the carrier slider then in effect you have only one side of the friction surface pressing/pulling on the disk.
That's why sometimes when you pull out old pads one pad is on the metal and the other can have considerable friction material left.
Any mechanic worth his pay allways check friction material on both pads,
top and bottom.
Uneven wear means something is stuck/sticking from rust or lack of lube.
Sorry for the big rant but I had one in last week that was so bad it didn't just need to go in the vise for the big hammer treatment but used a hell of a lot of gas to heat the siezed pads up before they came ot the carrier!!
Mother/driver/owner with two kid seats in the back.
So yes I use copper grease on steel prake pads.
And I really don't care about heat resistance but I DO care about antisieze properties.
I'll get of the soap box now.
|