Re: [CR]Tubulars

(Example: Framebuilding:Tubing:Columbus:SLX)

Date: Thu, 07 Sep 2006 16:34:34 -0400
To: <classicrendezvous@bikelist.org>
From: "John Betmanis" <johnb@oxford.net>
Subject: Re: [CR]Tubulars
In-Reply-To: <015e01c6d277$0ab76490$6401a8c0@peter5x12klm15>
References: <00fa01c6d173$ed094610$0200a8c0@D8XCLL51>


At 08:13 AM 9/7/06 -0400, Pete Geurds wrote:
>I've always coated both tire and rim.
>But still I've had a couple tires start peeling the base tape away from
>tire.
>Though maybe solvents used to clean rims was culprit.
>I've also had a tire come loose from base tape and rotate on rim under
>braking.
>Tape was glued to rim but tire slid on tape.

Good question Pete. I'd also like to see an answer to this.

Tires are glued to rims using a very agressive solvent-based glue. The base tape is glued on using base tape cement, which I can't find anymore but I've been told it's the same as Jevelot Tire Life. I believe they are both the same because they look and smell the same. The only difference I found was that the Tire Life comes in a plastic bottle and starts to dry out sooner and Le Tour Base Tape Cement was in a tin plate can, didn't dry out, but started to turn black. I thought it was the ammonia stabilizer reacting with the tin, but was told it was mould. It still works, but looks bad on the sidewalls. Anyway, my point is that this water based liquid latex can't be as strong as the solvent based tubular cement. Or at least, its strength does not last as long, as you've discovered.

John Betmanis
Woodstock, ON
Canada