Another new product is the coagulating Tubeless Tyre Plasma, which uses Oxyplateletes to seal holes up to 4mm. The sealant is non-corrosive to tire casing and organic, gluten free and hopefully vegan. e*thirteen have also created these tubeless valves, attempting to eliminate any tubeless valve woes. The valves have an inner an outer seal, with different rubber profiles to suit rim types, on the bottom of the valve there is an allen key hole to tighten them down in to the rim.