: : [ Need new Brake Pads ] : :
Anti-squeal paste is designed to go between the pad backing plate and the caliper piston, and dampen the vibration.
If you are having trouble stopping the squeal, you might try a stick-on anti-squeal pad. This is a rubberized piece, it sticks to the back of the pad. It really helps for "tough to solve" squeal problems.
If you use the liquid (like CRC Anti-Squeal from Pep Boys, etc), put it on thick, and let it semi-dry (maybe 1/2 hour) before reinstalling on the car.
Porterfields do seem to have a tendency to squeal, but it can easily be overcome. It may take a few tries, but you can get them to be quiet.
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