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From: lrd@druri.UUCP (DuBroffLR)
Newsgroups: net.auto
Subject: Re: squealing disk brake
Message-ID: <913@druri.UUCP>
Date: Thu, 5-Apr-84 18:03:17 EST
Article-I.D.: druri.913
Posted: Thu Apr  5 18:03:17 1984
Date-Received: Sat, 7-Apr-84 04:19:12 EST
References: <453@t4test.UUCP>
Organization: AT&T Information Systems Laboratories, Denver
Lines: 13

This has been the subject of much discussion in this group in the past.
The pads on disk brakes will sometimes vibrate at high frequencies,
causing a squeal.  Your local auto parts store should have a product
called "Disk Brake Quiet" (an indicative name), or other similarly
named products.  These products are aerosol foams or thick liquids that
are applied to the back side of the brake pad (NOT the side that
contacts the disk rotor and creates the braking action).  The goop that
has been applied dries -- or, rather sets, to a gel whose purpose is to
damp the vibrations that are causing the squeal.  I haven't used these
products, but have heard from people who have; some report the problem
totally cured and others say no effect.  In any event, no harm is done,
the (attempted) cure is not expensive, and doesn't take very much
time.