[CR]3M Fastack

(Example: Events:Cirque du Cyclisme:2002)

Date: Mon, 18 Sep 2006 12:47:04 -0400
To: classicrendezvous@bikelist.org
From: "John Betmanis" <johnb@oxford.net>
In-Reply-To: <3873.67.22.39.37.1158594961.squirrel@webmail.ivycycles.com>
References: <20060918151208.41993.qmail@web30907.mail.mud.yahoo.com> <MONKEYFOODpSck33EHa0000139d@monkeyfood.nt.phred.org>
Subject: [CR]3M Fastack

At 08:56 AM 9/18/06 -0700, Brandon Ives wrote:
>I've glued hundreds of tires on with 3M Fastack with no problems. I
>doubted the glue myself before my ex-workmate Bob Zumwalt told me to use
>it. Bob's raced the track and glued sew-ups much longer than I've been
>alive, so I believed him. Sure enough 12 years later I'm still using it.

I remember the 3M glue being an alternative 20 years ago. However, I've read lately that 3M had to change the formulation to appease the environazis or sometheing, and it's no longer recommended.
>From Bike Forums: "Fastack (in it's current incarnation) will cause basetape/carcass seperation. One theory I read (and I believe that someone who worked for 3M confirmed it), is that the base tape allows water to seep in and eventually breaks down the bond, and that the chemicals in the fastack facilitate the process."

I currently use Panaracer Pana Cement because it's clear, but I see from various test results on the web, it's not the strongest. http://www.engr.ku.edu/~kuktl/bicycle/Part6.pdf

John Betmanis
Woodstock, ON
Canada