Shot blasting gives the surface a rough profile so coatings and sealers will bond snugly with a floor. ![]() Machines with blast widths between 10 inches to 30 inches will cost roughly the same, he says, but below 10 inches, the price drips drastically.Ī shot blaster is the tool of choice for concrete contractors when prepping a surface. However, he says, the most important question is a basic one: How many square feet of production do you need per hour? “A lot of times what I do is refer people to owners of the equipment,” he says.Īllen Slater, product specialist with Blastrac, a leading manufacturer of shot blasters, says five variables impact each blasting project: the travel speed of the propulsion device the quantity and size of the abrasive the tenacity of the coating to be removed the desired end result and the size of the machine. They have even been used to stencil patterns, from company logos to leaves and seashells, on concrete.īruce Williams, owner of B W Manufacturing Inc., based in Grand Rapids, Mich., says shoppers should look at reliability, production rate, and ease of maintenance and servicing. On new construction sites, they can scrape the dusty top surface off rained-on concrete. Shot blasters can be used to blast decorative garage floors before coating. The rough profile guarantees a good bond, and the work can be done in a fraction of the time it can take with other equipment. “To come into a residential home and use a shot blaster is pretty rare,” Ferchaud says.īut small-job contractors use them too. When it comes to concrete, most shot blasters are used on large industrial and commercial jobs, from cleaning parking lots to scouring line stripes off highways. ![]() Shot blasters were developed to scour nonskid coatings off the steel decks of aircraft carriers. It can be the most productive, but it requires the most parts to be replaced.” ![]() “Shot blasting requires the most attention of the three. “You scarify, diamond grind or shot blast - that’s how you prep a floor,” he says. Inc., which distributes Italian-made Trimmer shot blasters. But for decorative concrete contractors who shot blast, the questions “why,” “when,” and “how” are much more crucial.Ī shot blaster is the tool of choice for concrete contractors when prepping a surface, says Greg Ferchaud, national sales manager for SASE Co. That’s not a problem if you’re prepping a new warehouse floor for a thick layer of epoxy.
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