Found this old article but still a v good one regarding sealants.
I have used stans and found it worked 50% of the time for me in latex tubulars (Vit Corsa Evo CX)
https://www.slowtwitch.com/Products/Things_that_Roll/Tires/Sealant_Test_-_Part_2_4155.html
I have used stans and found it worked 50% of the time for me in latex tubulars (Vit Corsa Evo CX)
https://www.slowtwitch.com/Products/Things_that_Roll/Tires/Sealant_Test_-_Part_2_4155.html