[shadrach74]

Originally Posted by tony_fury

I heard bad things about that blue goo.
Pelican Technical Article: 911 Brake Pad Replacement

11. Do not use the anti-squeal compound pad from your Friendly Local Auto Parts Store on the back of the brake pads. This stuff turns to glue, and when you need to replace the brake pads again, it will destroy the caliper dust boot when you pull the pads out (don’t ask how I know this). Many new brake pads come with an anti-squeal coating already applied. It looks like a thicker coat of paint on the back of the pads. If you want to use something more I recommend a LIGHT coat of Lubro-Moly Hi-Tack Lube Spray. Be careful not to get this stuff on the braking surface of the pads, or on the rotors.


Bendix Ceramlub Helps Ensure Proper Brake Lubrication: Brake and Front End

Pelican FAQ
Pelican Parts.com Performance - Cool Carbon Brake Pads

If you use the "Blue goo" (I use CRC DBQ) properly, it sould never come in contact with the caliper piston boots. A very thin layer where the piston contacts the pad is all that is needed. If you just gob it on in excess, then you could have trouble.