Making it valuable for packing applications involving variable fluid properties or intermittent operation where continuous liquid lubrication cannot be assured. Break-in lubricants applied during initial pump startup provide supplemental lubrication during the critical initial operating period when packing materials are conforming to rod and stuffing box surfaces, bedding into final s... https://globalsealstech.com/product-category/oil-gas-seals/high-pressure-water-pump-seals/