[Helmut S]

Ob‘s nur daran liegt?

Bei Stan‘s Notube sealant steht

Is Stan's sealant compatible with CO2?
CO2 is best used in an emergency situation. If you have no other means to get your tire to seat, you can use CO2. However, we recommend that you let the CO2 out either after your ride, or after setting up your tire, and replace it with regular air. Prolonged exposure to CO2 can cause the sealant to separate and/or decrease the life of your sealant.

https://www.notubes.com/support-center/faq