3M 7000118107 Psa Abrasive Disc 6 Inch 400 Grit 175 Pack

Product Description

The 3M 7000118107 is a pressure-sensitive adhesive (PSA) abrasive disc designed for fine surface finishing on random orbital sanders. Built on a lightweight A-weight paper backing, this disc uses aluminum oxide abrasive at 400 grit for extra fine material removal and surface prep. The gold disc measures 6 inches in diameter and is sold in a pack of 175. The flexible paper construction conforms to slightly contoured surfaces, making it suitable for finish sanding wood, painted surfaces, and light metal prep. HVAC fabricators, finish carpenters, and metalworkers are the typical users in a trade setting.

This disc is used in light finishing applications where surface smoothness is the priority. The 400 grit extra fine grade is appropriate for final sanding passes before painting, priming, or coating. The PSA backing allows fast disc changes on compatible orbital sander pads without fasteners or clamps. With no vacuum holes, this disc is suited for use on sanders without dust extraction ports or on setups where hole pattern does not match. The Series 216U designation identifies it within the 3M coated abrasives line.

Key Features

• 400 grit aluminum oxide abrasive for extra fine surface finishing
• 6 inch diameter fits standard PSA orbital sander backing pads
• Pressure-sensitive adhesive backing for tool-free disc changes
• A-weight paper backing provides flexibility for contoured surfaces
• No vacuum holes — suited for solid-pad sanders without dust ports
• Pack of 175 discs for extended production use

Compatibility

Compatible with random orbital sanders equipped with 6 inch PSA (pressure-sensitive adhesive) backing pads. No vacuum hole pattern — intended for use with solid pads only.

Installation Notes

Installation is performed by the operator or technician preparing the work surface. Ensure the sander backing pad is clean and free of debris before applying the PSA disc to achieve full adhesion. Do not exceed the sander manufacturer's rated RPM for 6 inch discs. Worn or glazed discs should be replaced promptly to avoid heat buildup on the workpiece surface.