TLR Mountain and Gravel sealant were developed with extensive real world and Factory Athlete testing. The ecological formulation seals punctures up to 6mm, whether it be on a mountain or gravel tire. Particulates stay mixed longer, for a proper ratio during multiple fill ups, ease of install through valve stems, and consistent puncture sealing. Please note that this sealant is ammonium-, protein-, and latex-free, so it holds no potential for allergic reactions, and there's no risk of it creating damage to bike parts.