Sand Blasters

Sand blasters, also called abrasive blasters, use compressed air to shoot grit at a surface to strip paint, rust and scale. They come as small handheld guns with a hopper or siphon hose, portable pressure pots that hold larger amounts of media, and blasting cabinets that contain the dust. The first decision is the size of the job, because a hand gun suits small parts, while a pressure pot or cabinet is needed for car parts and larger surfaces.

Air supply decides whether a blaster works at all. Blasting uses a lot of air continuously, so your compressor must deliver enough air flow at the pressure the blaster needs; a small compressor will stop and start constantly. Among the 8 products that list item weight, most fall between 0.9 and 81 pounds, and 2.5 pounds is typical. Cabinets need a dust collector or vacuum to keep visibility clear.

Media is the next choice. Glass bead gives a smooth finish on softer metals, aluminium oxide cuts fast on rust and paint, and soda and walnut shell are gentler options for delicate surfaces. Avoid silica sand, which creates dust that is harmful to breathe.

Before buying, check the air flow and pressure required, the hose length, the nozzle sizes included, and what media the blaster is rated for. Wear a proper respirator, eye protection and gloves, blast outdoors or in a cabinet, and keep moisture out of the air line, since damp media clogs the gun.

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