The 5 Best 18 inch Sanding Discs (2023 reviews)

The disc is a must have addition for your daily purpose. It is used for furniture, automobiles, yachts and other industries of metal and non-metallic materials of various complex surface rust, paint, deburring, solder joints grinding. It is used for light duty edge sanding, which works well but grit not very durable. It can gum up and scorch the wood if too much pressure is applied. It is used to maximize resistance to clogging and pilling.

It is suitable for use with random orbit sanders. It does not have to be neat because the item you are sanding will never come close to that area because the arbor will be in the way.

Why We Like This:

10 inch diameter, suitable for use with random orbit sanders
Resin on resin bond for heat resistance
Pressure sensitive adhesive backing and c-weight paper
Open-coat produces an even and consistent scratch pattern

Best Runner up: generic 18 inch Sanding Disc

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Not everyone likes to purchase disc for their regular usage, but the generic 18 inch sanding disc would be an anomoly.

Why We Like This:

Lot of satisfied buyers
Good brand reputation

Best For Use: Cai - Arc Abrasives 18 inch Sanding Disc

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Cai - Arc Abrasives makes beautiful and great disc with classic and smartly choosen materials. It offers fast, convenient disc mounting. It is designed for use on stationary disc sanders. It is made without center holes for full-face usage.

Why We Like This:

For maintenance and repair applications, from medium grinding to light deburring and finishing
New and hot release

Best For metal: 3M 18 inch Sanding Disc

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If you want nothing but the best desirable disc, then 3m 18 inch sanding disc is the one you should definitely consider. Aluminum oxide particles in a closed coat offer a fast cut for grinding and dual action (D/A) sanding on metal. Due to their fast cut-rate, hardness, strength, and low heat retention, they are widely used in grinding applications in addition to sanding and finishing applications. This versatile disc provides a fast, efficient method for deburring, blending, cleaning up, and finishing metal parts and surfaces of various sizes and shapes.

This mineral makes a tough, durable abrasive that self-fractures to expose fresh cutting edges in use, whereas traditional abrasives such as garnet quickly wear down with use. The Heat-resistant resin is a sturdy binding agent that adheres the abrasive to the backing and maintains the stability of the bond even in conditions of high heat or pressure. It can be used in grinding applications in addition to sanding and finishing applications.

Why We Like This:

One of the new comers and featured product
New and hot release

Best Premium: Arc Abrasives 18 inch Sanding Disc

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Predator PSA discs can control heat and extend cut with their proprietary combination of self-sharpening grains. The technical grain combination of Predator discs easily performs at a 3-to-1 cut rate over standard aluminum oxide and zirconia alumina discs. The discs don't leave residue on the pad or platen to ensure an even grinding surface and secure adhesion with the next disc.

These discs are ideal for mild steel and are a cost-effective alternative to full ceramic materials. The PSA (pressure-sensitive adhesive) securely holds the disc to the pad or platen and can easily be removed after the disc is finished.

Why We Like This:

Performs at a 3-to-1 cut rate over standard aluminum oxide and zirconia alumina discs
Delivers a fast cut with minimal loading
Controls heat and extends cut with proprietary combination of self-sharpening grains