The aluminium oxide abrasive on an E-weight paper backing has a semi-open structure with antistatic properties to reduce clogging. BW115 is especially suited to sanding hardwoods and is suitable for use on metal. It has a good stock removal rate even with low sanding pressure. BW115 is an excellent multi-purpose abrasive for use with powered sanders.
Available in a variety of grits.
N.B. formally BW110, same abrasive just a code change.