I want to use tubeless road carbon rim without rimtape (no spoke holes on outside diameter)
Do I have to worrie about corrosion or degradation if I use carbon with Stan's NoTube sealant?
This season I bought the Dura-Ace 7850-SL wheelset to use exclusively for cyclocross racing. I used the Hutchinson Fast’Air to inflate and seal the Hutchinson Bulldog tires, but have had less than stellar results with the Fast’Air sealing thorn punctures.
I have switched over to Stan’s sealant now due to the higher cost and lack of performance with the Hutchinson Fast’Air magnums. I called Shimano and they said not to use Stan’s because it can cause corrosion. After that I called Stan’s and they told me there are no corrosion issues to worry about.
Any idea which way to go? I know a ton of people are using Stan’s with these wheels and have not had any issues.
I’ve heard this concern before, and I think it is nothing to worry about. The concern I’ve heard expressed is something about there being ammonia in the Stan’s sealant. This is what Stan Koziatek had to say about that:
NoTube.com Stan wrote:
My sealant has very little if any ammonia in it.
If you read the Installation Instructions on the hang tag of the Fusion tubeless tire, Hutchinson recommends using their Fast Air Latex sealant.
In the tubeless road tires we use 2oz of my sealant. In most cases it lasts over four months almost one full season 2000 + miles. My sealant will not damage any tire.
I personally have two sets of wheels that I’m riding these days with Hutchinson Fusion 2 tubeless road tires – one on a set of the same Dura-Ace wheels that you have, and another on a set of Mavic Ksyrium ES wheels. Both of the Ksyriums and one of the Dura-Ace wheels have Stan’s sealant inside, and I’ve had no issues with either.
If the Shimano rep’s concern was about the rim and not the tire, then that can certainly not be a big concern, since there are and have been for years countless mountain bikers out there using this stuff in their rims with no problems. I’m sure if you clean your rims and tires out at the end of your ‘cross season, you will not have reduced their life by using Stan’s.