an abrasive product includes a plurality of abrasive particles and a resin cured with a polythiol group . a method of preparing the abrasive product includes contacting the plurality of abrasive particles with a curable composition that includes a resin and a polythiol group , and curing the curable composition to produce the abrasive product . a method of abrading a work surface includes applying an abrasive product to a work surface in an abrading motion to remove a portion of the work surface . a curable composition includes a formaldehyde resin and a polythiol group . a formaldehyde resin is crosslinked by a polythiol group . a method of crosslinking the formaldehyde resin includes reacting the polythiol group with the formaldehyde resin .