Temperature capabilities vary significantly among seal materials, from standard nitrile rubber effective from -40°F to 250°F, to high-performance polyurethanes and fluoroelastomers functioning from -40°F to 400°F. Specialty materials extend these ranges further, with some seals rated for cryogenic service below -100°F or continuous operation above 500°F. https://globalsealstech.com/hydraulic-seals/