VC1 is a superior performance pump packing. Made of a unique Aramidic composite fibre. This special fibre combines an exceptionally high tensile strength 380,000psi (27,000 kg/cm2), outstanding heat resistance, linked to low friction and excellent cool running properties. Lacking the stiffness of conventional synthetics and, thus, readily conforms to stuffing box surfaces, is easy to install and requires minimal gland torque and fewer adjustments. This is a strong thermoset fibre packing but it is also extremely soft, assisted by our exclusive, three stage lubrication process. The low-friction factor reduces abrasion by up to 1/10th compared to Aramidic fibres, giving high reliability and life, even in the most demanding of applications. VC1 is heat resistant and will not glaze, even at high shaft speeds.Type VC1 standard spool length is 8 meters. Custom Cross Section and lengths can be available - please contact us bsolomon at sterling Seal dot com