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📦EOFY Sale ends June 30, while clearance items will remain on sale until sold out.🎟️
📦EOFY Sale ends June 30, while clearance items will remain on sale until sold out.🎟️
Sia Abrasives

SIA Floor Sanding Abrasives & Sandpaper

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Professional sanding abrasives from sia Abrasives and Berger-Seidle for timber floor preparation and finishing. The right abrasive sequence determines the quality of your final coat — from aggressive stock removal through to the fine scratch pattern that sealers and lacquers need for proper adhesion.

Choosing the Right Grit Sequence

A typical timber floor sanding job progresses through 3-4 grit stages: coarse (24-40 grit) for levelling and old coating removal, medium (60-80 grit) for smoothing, and fine (100-120 grit) for final preparation before sealing. Each stage removes the scratch pattern from the previous one.

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Questions about our Sia Abrasives?

What grit sequence should I use for timber floor sanding?

A typical sequence is: 24-40 grit for initial levelling and old coating removal, 60-80 grit for smoothing, and 100-120 grit for final preparation before sealing. Each stage removes the scratch pattern from the previous one.

What is the difference between zirconia and aluminium oxide abrasives?

Zirconia abrasives are harder, sharper, and last significantly longer than aluminium oxide. They cut faster and are preferred for professional floor sanding. Aluminium oxide is more affordable but dulls quicker, making it better suited to light DIY work.

How do I know when to change my sanding belt or disc?

Change the abrasive when it stops cutting efficiently, leaves burn marks, or produces fine dust instead of shavings. A worn abrasive generates more heat and friction, which can damage the timber surface and clog the finish.