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For fast removal, start with a coarse grit, open coat belt. Change to closed coat belts, using medium grits as the material shows through the coating. When the covering is thin, use medium grit to avoid scratching the material. Use short, light strokes, moving the sander rapidly. Excessive pressure or steady sanding in one place will burn the coating and load the belt.

METAL FINISHING

For ferrous metals such as steel, stainless steel, iron, etc., use coarse grit open coat belts

or coarse to fine grit closed coat belts, depending on the finish desired. Non-ferrous metals such as aluminum, solder, brass, bronze, etc., can also be sanded. Beeswax or tallow are recommended as lubricants for metal sanding, polishing or satin finishing to minimize belt loading and to lengthen belt life. To use, simply rub the lubricant on the belt from time to time. SAE No. 10 or 20 lubricating oil can also be used to assure a smooth scratch free surface. Just wipe the oil on the surface prior to sanding.

GUIDE FOR WOOD SANDING OPERATION

SANDING

PURPOSE

ABRASIVE

 

METHOD OF SANDING

OPERATION

 

 

 

 

TO USE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ROUGH

 

 

 

 

Open Coat

 

 

 

 

 

 

To level out uneven

 

 

 

 

Sanding diagonally to start

 

 

surfaces.

 

 

Coarse Grit

 

and finish up sanding

 

 

 

 

 

 

 

 

parallel with the grain.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PREPARATORY

 

To smooth the

Open Coat

 

 

 

 

 

 

Sanding parallel with the

 

 

rough sanding

Medium Grit

 

wood grain.

 

 

 

preparatory to finish

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

sanding.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FINISH

 

 

 

Open or

 

 

 

 

The last sanding in

 

Sanding parallel with the

 

 

preparing the bare

 

Closed Coat

 

wood grain.

 

 

 

wood for coating.

 

Fine Grit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remove all sanding dust thoroughly before coating. Use a soft brush or a vacuum cleaner and hose to remove all dust from seams or crevices.

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Skil 7500 manual Metal Finishing, Preparatory