Atlas

Frequently asked questions

• Is wet and dry paper used wet or dry?

  Either, but wet use is the reason the product exists. Water carries the removed paint and filler clear of the surface: the paper clogs later, the grain cuts for longer, and no dust goes into the air. Used dry, the same sheet loads much faster. The 188 Silver series backing is waterproof and does not break down in wet use.

• Which grit should I start with?

  The condition of the surface decides. Old paint, rust and weld beads: 60 grit and below. Levelling filler: 80-120. The last pass before primer: 150-240. Flatting primer and levelling before paint: 280-600. Polishing and paint defect correction: 800 and above. Each category page carries these bands as a table.

• Why does skipping a grit matter?

  Each grit erases the scratch of the one before it. Going from 80 straight to 400 does not close the deeper scratch, it polishes it, and it reappears under paint or polish. The sequence should run 60-80-120-180-240, each grit worked until the previous one's scratch is no longer visible.

• What is the difference between a cloth roll and a foam backed roll?

  Both are rolls, but they do different jobs. The 147 grade cloth roll (200 mm x 50 m) is aluminium oxide on cotton-polyester cloth; it bends without tearing and removes material — pulled by hand around pipe, shafting and profiles. The Gold foam roll (115 mm x 25 m) is on a foam backing; the abrasive sits onto the shape of the surface and finishes it, keeping pressure even over mouldings, edges and chamfers.

• Sanding block or flat pad?

  Thickness decides. The 98x68x26 mm block is thick, abrasive on all four faces, and gives the hand its own grip; it carries pressure on wide flat work. The 98x123x10 mm flat pad is thin and folds, for the narrow gaps, grooves and profile interiors a block cannot reach.

• What are the holes in a drywall sanding disc for?

  The 8 holes in the Ø225 mm 157K disc line up with the extraction channels of a drywall sander and feed plaster dust straight into the vacuum. With no dust collecting underneath, the disc clogs later and no lumps form to score the surface. On plaster it is loading, not cutting power, that ends a disc's life — which is why the hole pattern has to match the machine's pad.

• How do I choose a sanding belt size?

  Both numbers have to match the machine: the circumference decides whether the belt will tension onto it, the width decides the working width. The Atlas 147 grade endless belt is 7100x150 mm, for pallet and wide belt sanders. Your machine's belt size is in its manual, or printed on the belt being replaced.

• What is the difference between the red and green Brite pads?

  Grain and flexibility. The red pad carries aluminium oxide and is used on metal to take off rust and oxide and to key a surface before paint. The green pad has a mixed grain and is more flexible; it is the one recommended on timber and for cutting back between polish and lacquer coats. Both are 230x280 mm and can be used wet or dry.

• Can a sanding sponge be washed and reused?

  Yes. The silicon carbide grain takes wet use; washing the block or pad and drying it clears the dust and paint packed into the pores and the surface cuts again. This can be repeated until the grain is genuinely worn — it is the clearest advantage a sponge has over a sheet.

• Are these genuine Atlas products, and what is covered?

  All 69 rows in the catalogue are genuine Atlas product, listed under the manufacturer's own order codes such as 160.01.S100. A coated abrasive is a consumable, so no warranty is given on service life; what is covered is that the grit, size and series supplied are the ones ordered.

• Do you supply a grit or size that is not listed?

  Yes. The Atlas range is wider than the 69 rows on this page — categorisation and catalogue entry are still in progress. If the grit, size or series you need is not listed, request it by order code or description through the contact page.

• How do I get wholesale or dealer pricing?

  Seza Global supplies these wholesale. Send quantities, the grit split and the delivery location through the contact page and we will price the project; for regular purchasing you can open a dealer application.