Zirconia Ceramic Liners are the ultimate in liner performance and durability. The offshore industry has made Zirconia liners the new industry standard. Zirconia liners are a proprietary based matrix that have significantly improved and superior mechanical characteristics. This translates to cost savings, better performance and significantly longer service hours than those of the commonly used alumina ceramic liners.Zirconia Ceramic has three important property advantages compared to alumina ceramic: Zirconia exhibits superior impact strength, Zirconia is harder than alumina ceramic, Zirconia is honed to a finer surface finish, significantly finer than other finishes.