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Sanding wood with blocks is a technique spanning centuries. Today sanding blocks are offered in several different styles, but essentially still do the same job, proving a mar-free surface ready to accept finishing materials such as paint, varnish or oil. Here’s a round-up of available products.
Sanding blocks can be used on wood and metal. Choosing the one best for you will depend upon the nature of the material you need to work, the type of job and how comfortable the tool fits in your hand.
Most sanding blocks can be used on both wood or metal simply by changing the type of sandpaper. But not all tools are created equal when it comes to ease of changing the sandpaper. Some have clips, clamps, inserts and other holders that sometimes tears the paper as you use it. How can you tell what’s best for you? Inspect the product mechanism. If it’s looks complicated the time required to change sandpaper may be long and the task tricky. Clips are the fastest. Inserts can take the longest. No matter what the block, sandpaper must be cut to size. Buy quality paper, not the cheap stuff. It will rip, shred and add to your general aggravation.
As with any hand sanding, fatigue is a factor. Some designs are more ergonomic than others. The best way to determine what’s best for you is to take a trip to your local home center and test drive the products, or, at least fit them in your hand and see how they feel.
Rubber blocks are soft-gripped molded products that comfortably fit the hand. These are used with sheets of any grit, trimmed to fit the block. Cost is under $5.
Felt backed pads fit the hand and the softer surface can produce a smoother finish, again depending upon the grit of the sandpaper used. Cost is $5-$9.
Some tools are made of abrasive materials that do the same job as blocks that use sandpaper sheets, without the hassle of clogging sandpaper and paper changes.
One product consists of a hand-sized (1x 3 3/4”) abrasive coated foam block, which can be rotated to provide additional surface sanding area. The manufacturer claims the block is reusable and washable. The cost is $3 for a pack of two blocks.
Another block type is made of recycled glass for $6. The manufacturer claims quick removal of material and that the product is non-clogging.
Other sanding blocks are a little more elaborate, but just as useful.
One is a thermoplastic bar four inches wide and 10” long that uses standard sized belt sander belts that can be changed with a quick lock and release mechanism. The manufacturer claims long use on flat, curved and angled surfaces, rounds, corners and edges. About $10.
Finally, there is a product made of an abrasive block fitted to a handle for under $27. The handle provides a firmer grip.
As with all tools, some safety cautions are necessary. Sanding wood sends wood dust into the air. According to the National Institute for Occupational Safety and Health, breathing wood dust for extended periods can cause reduced lung function ailments and asthma. Hardwood dust is abrasive and breathing some of the more exotic imported hardwood species can be toxic. Wearing a rated dust mask and goggles is necessary.
While sanding wood using blocks is an old technique, modern manufacturing may have changed the shape of the tool but not its versatility. A collection of these products would be a good choice for any home workshop.
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