Carbon fiber packings are not all created equal. Higher carbon purity improves the temperature and chemical resistance of the braid. Lattice braid construction from staple fibers produces a carbon packing that conforms to the stuffing box better, requiring lower gland load to seal. That lower gland load translates into a packing that will last significantly longer than those made from continuous or stretch broken filaments. It also means that there will be less frictional drag on the shaft in rotating equipment and easier operation in valves. Garlock’s styles 98 and 5000 are designed to give the user the greatest return on initial investment in terms of leakage control, service life, and dependable, cost-effective product.