335 Zirconia heavy paper rolls are designed for the wood sanding and grinding applications. The robust F-Weight paper is extremely suitable for high pressure sanding on floor and any other hardwood surfaces. Due to the properties of the Zirconium Alumina grains properties, stock removal rate is accelerated while durability is prolonged compared to the conventional abrasives. The 335 Zirconia heavy paper series can also be used for moderate-pressure metal sanding applications with equivalent results.