How to Sand Blast Concrete right?

Sandblasting is one of the most efficient methods of cleaning stone, metal, wood and other solid surfaces. It employs the use of compressed air to project sand and alternative granules at a target. This removes dirt, grime and all finishes almost instantaneously. A sandblaster has the ability to restore a surface to its original bare condition with minimal effort. Although convenient, treating concrete with a sandblaster requires detailed preparation and protective measures.

Instructions for sand blasting concrete right as below:

1. Clear the area of anything that could be affected by stray sand. Cover any exposed surfaces surrounding the concrete with plastic sheeting or tarp if you want to keep them clean.

2. Thoroughly ventilate the area if sandblasting concrete in limited workspace, such as a garage. Wear safety goggles and a painter's suit equipped with a hood. Put on a respirator before sandblasting in order to avoid inhaling dust particles from the sand and dirt.

3. Shut off the valves on the sandblaster and fill the tank with silica sand. Turn on the compressor and allow it to pressurize between 40 to 100 pounds per square inch (PSI). Set the sandblaster on a low pressure setting initially.

4. Point the nozzle of the sandblaster at the concrete, at least 8 to 16 inches away from your body. Squeeze the trigger and sandblast the surface top to bottom for even coverage.

5. Gradually increase the pressure setting until the concrete is free of dirt or residue, or until you've reached the desired results. Use short bursts of sand for particularly difficult areas, and sweeping motions for the rest of the surface.

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