Bondo® Corp. expands Marson line Bondo Corp. announced the expansion of their Marson brand rivet and rivet tool line to include economy rivet tools, rivet sizes, rivet pack quantities and accessories. The expansion will increase Bondo's offering to well over 300 items. New items will include the hand and air powered Marson ValueRivet® tools, which are all-steel constructed and feature ergonomic handles and a solid pulling force.