We have different types of latex: Notubes/Schwalbe, Joe's No flats, Dt Swiss latex, Tune latex. Although these latex look the same, there are differences: Notubes used a latex that has been used with great success since 1999. It makes almost all tires airtight, but the latex will harden after a few months. Schwalbe offers latex
in its own packaging, but in principle this is just Notubes latex. Joe's No flats has also been supplying good latex for years that works with rubber rim tape. TuneandDT Swiss have also recently launched a latex. This latex contains no ammonium or protein. This prevents the latex from hardening, meaning the liquid will remain good for more than a year.