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The 3M SandBlaster is a flexible sanding sponge in 220 grit, a fine grade for smoothing between coats and finishing painted, wood or metal surfaces. Its open-channel pattern on one side clears dust and resists loading, and the flat side handles broader areas. Unlike paper sheets, it can be washed and reused, and 3M claims it lasts about five times longer than its conventional sheets. It suits detail work on contours and trim where a rigid block won't follow the shape.
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Lowest price we've seen: $5.99 on Nov 7 at Tractor Supply Co. Tracked across 1 store since Nov 7.
Owners of 3M's SandBlaster sponges generally rate them well for flexibility, dust control and durability compared with plain paper. Complaints center on the fine grit clogging on soft finishes and the higher cost than sheets.
This 3M SandBlaster sanding sponge has a 220 grit surface and measures 4.5 x 2.5 x 1 inches. It channels dust away from the sanding surface and resists loading, which gives larger sanding coverage and faster sanding. It lasts 5x longer than 3M conventional sanding sheets.
The pattern side is for detail and contour sanding. The regular side is for flat sanding. It can be used on painted surfaces, wood or metal. The sponge is washable and reusable.
