Originally Posted by
WhyFi
Yeah, you can mix sealants if they're both latex based (which is the most common), you're just not going to have the same amount of particulate per oz, which may or may not affect the effectiveness.
Another recommendation to make life easier in terms of maintenance - get a syringe with a thin plastic "needle" that can insert all of the way through the valve stem, so that you can easily and cleanly add and remove sealant without breaking the bead -
https://www.amazon.com/Tubeless-Seal...dp/B07WR9MMDW/
Note: some valve stems have a constriction in the middle and won't pass the needle all of the way through. The machined aluminum ones, like from Muc-Off, will pass them, though.
Yea the stems that came with my wheels have a smaller opening at the base restricting the flow of the sealant and it takes longer and can be so messy if you push it in to fast. I bought some aftermarket stems and they have a larger opening and using the syringe tool is so much easier and far less messy.