3M Paper sheet 336U is an ideal abrasive sanding sheet for soft metals like aluminum, brass, bronze and copper. Constructed on an intermediate, c-weight paper backing, it features an open coat aluminum oxide mineral to help prevent loading. Our 3M paper 336U is available in grades of 100, 120 and 15..
3M Paper sheet 346U is constructed of aluminum oxide and comes in a range of grades and sizes to accommodate many different projects. The paper backing is durable for coarse sanding, yet flexible enough to be used on curved surfaces. Its cut rate and durability make this an excellent choice for blen..