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FEATURE SANDING Garnet (reddish brown in colour) Aluminium oxide is generally

is a natural abrasive which is not

used for grinding

friable like aluminium oxide and

• Carbon steel

wears out faster. This is not

• Alloy steel

necessarily bad, because garnet

• High speed steel

will produce a smoother surface

• Annealed malleable iron

than aluminium oxide of the same

• Wrought iron

grit number, but will cut slower.

• Hard bronzes.

This abrasive is an excellent choice for final sanding, as it seals off the

Sandpaper with silicon carbide (black

wood’s grain, and is particularly good

in colour) abrasive is suitable for use

for soft wood, such as pine.

on harder materials, such as metal, plastic and fibreglass, because it is

OPEN AND CLOSED

harder than aluminium oxide and

COAT SANDPAPER

garnet and can be used for wet-

Open coat sandpaper is used

and-dry sanding. It is also a friable

for woodworking where a lot

abrasive and is good for sanding low

of sawdust will be present.

tensile materials, such as aluminium,

There are spaces and gaps

copper, brass and cast iron.

between the grits, which help prevent clogging by giving the

Silicone carbide is used for grinding • Grey iron • Chilled iron • Brass • Soft bronze

sawdust a place to go. These spaces and gaps can cover 40% to 60% of the sandpaper’s surface. Closed coat sandpaper is better for sanding metal and wood finishing.

• Copper • Marble • Rubber • Hard facing alloys • Glass.

// ABRASIVES COME IN ALL SHAPES AND SIZES, INCLUDING SHEETS, BELTS, ROLLS AND DISCS //

// STOCK THESE PRODUCTS CLOSE TO THE ABRASIVE PRODUCTS AND MAKE SURE FLOOR SALES PEOPLE ARE AWARE OF THE CROSS SELLING OPPORTUNITIES IN THIS CATEGORY // MAY 2019 DIY & INDUSTRIAL TRADE NEWS

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DIY and Industrial Trade News - May 2019