Silca Ultimate Tubeless Sealant leverages innovative FiberFoam® technology, incorporating recycled carbon fibers (6, 9, and 12mm lengths) dispersed within foaming latex to effectively seal punctures up to 7.5mm. Designed to perform reliably down to temperatures as low as 10°F (-12°C), it maintains airtight seals for up to six months without pressure loss. This sealant requires direct pouring into the tire during installation, as its sealing power exceeds valve compatibility for injectors. To maintain optimal performance, replenish every 90-120 days with Silca Replenisher, ensuring continuous protection and confidence on the trail or road, even under demanding conditions and varied temperatures.