Valco's new sealant dispenser is a hand-held unit designed to quickly apply HYLOMAR thread sealant directly onto bolt threads. The tool's closet unit design reduces mess and exposure to fumes and the product is dispensed out of standard size tubes, through the special applicator head. One 100-gram tube of HYLOMAR will coat around 300 7/16" cylinder head bolts at a rate of 1 bolt every 3 to 4 seconds.