Pressure Sensistive Adhesive Discs - PSA Discs

Benchmark Abrasives PSA Discs: The Ultimate Sanding Solution for Metal and Wood Applications

When it comes to achieving smooth and polished surfaces on both metal and wood, PSA (Pressure Sensitive Adhesive) discs are a go-to choice for professionals and hobbyists alike. These versatile and efficient sanding discs are a must-have in any workshop or project space for their precision, performance and smooth finish; we take you from 40-3000 grit!

What are PSA Discs?

PSA discs (aka Pressure Sensitive Adhesive Discs) are adhesive-backed sanding discs that are easy to apply and remove to sander backing pads, making them an ideal choice for sanding applications on various surfaces. The pressure-sensitive adhesive backing ensures a secure attachment to sanding machines, eliminating the need for additional adhesives or tools during the sanding process.

What Are The Benefits of using PSA Discs?

• EASY APPLICATION - Simply peel and stick the PSA disc onto your sanding tool for quick and hassle-free setup.

• SEACURE ATTACHMENT - The pressure-sensitive adhesive backing provides a strong and reliable bond between the disc and the sanding tool, ensuring smooth and consistent sanding.
• VERSAITLITY - PSA discs are suitable for both metal and wood sanding applications, making them a versatile option for different projects.
• PRECISION SANDING - The uniform grit distribution on PSA discs helps in achieving precise and uniform sanding results, whether you're working on metal or wood surfaces.
• DURABILITY - PSA discs are designed to withstand tough sanding conditions, ensuring long-lasting performance and durability.

What Are PSA Discs Used On?

Metal Sanding: PSA discs are perfect for removing rust, paint, and other surface imperfections on metal surfaces, providing a smooth and polished finish.  Benchmark Abrasives carries a variety of grain options that can be used on ferrous and nonferrous materials.

Wood Sanding: Whether you're sanding hardwood, softwood, or plywood, PSA discs deliver excellent results by efficiently sanding wood surfaces and preparing them for painting or staining.

Choosing the Right Grit:

PSA discs come in various grit options, ranging from coarse to fine grits. Selecting the right grit for your sanding application is crucial for achieving the desired finish. Coarse grits are ideal for rapid material removal, while fine grits are best suited for finishing and polishing tasks.

• Coarse Grits: 40-60
• Medium/Coarse Grits: 80-100
• Medium Grits: 120-150
• Fine Grits: 180-220
• Very Fine Grits/Finishing: 240 and up

Discs or Rolls, what should you grab?

Benchmark offers PSA discs in three different styles: Discs with release tabs, Discs on rolls and Sheet Rolls.  The right style of PSA disc is really determined by your application, work environment and tools.

PSA discs with tab – discs with tab are single cut discs that have a release liner backing to keep the PSA protected until it’s time to use your disc.  These discs have a quick release pull tab for easy removal of the release liner.

PSA discs on rolls – discs on a roll do not have a release liner.  Instead, these discs are wound onto one another using a special adhesive.  The rolling technique protects the adhesive since the sheets are stacked on top of one another.  Rolls are a convenient way to dispense the discs, especially in high volume use jobs.

PSA sheet rolls – sheet rolls are also known as long board sander rolls or sheets.  The sheet rolls have the same adhesion technology as the PSA rolls and are rolled to protect the adhesive backing.  Sheet rolls are used a lot in automotive body work where the user will tear or cut the sheets to their intended length.  Perforated sheet rolls are also another style used in automotive, those are coming soon.

PSA Backing: Cloth vs Paper vs Film

Cloth: durable X-weight cloth provides a ridged backing that can take a beating.  The economical cost of the cloth backing married with their durability make these a great option for large platen sanding discs, floor sanding discs or any dry sanding application that requires a little more durability compared to paper.

Paper: “sandpaper” is the standard for sanding.  The paper backing holds the grain and resin mixture secularly to the face of the material, allowing for sanding of all types of applications.  Paper is not as durable as film or cloth  but the price makes it ideal for most diy applications.

Film: Film is the most durable of the three options for PSA backing material.  Designed with waterproof film-backed backing material, these discs are designed to be used in both wet and dry applications.  They are tear resistant and can take a beating!

What’s better Hook & Loop Discs or PSA Discs?

On PSA Discs the sandpaper has an adhesive coating, a bit like a sticker that adheres to the pad. You can peel the label off the sandpaper, stick it onto the pad using it. This sort of sander pad tends to be less costly than hook and loop pads. It does have one major drawback, however. It's tough to change between sandpaper discs without making the disc useless. If you're taking off the disc, and even a little bit of dirt or sawdust gets on the adhesive coating, it'll not stick with the pad well. If your application doesn't require you to vary grits often, this is often an excellent format.

If you are working through a sanding process where you switch between grits often and don’t have dedicated sanding machines per grit, we suggest going with hook & loop discs.

Tips On Extending The Life of Your Discs.

Grab on of the Benchmark Abrasives belt butter tubes and apply to your sanding discs to prevent load up and friction, extending the life of your discs

Too much material build up on your disc?  Don’t throw it out!...grab one of our rubber abrasive belt cleaners.  Bring the belt cleaner to your running sanding disc to strip out the build up and restore your discs useful life!

PSA Discs Available at Benchmark Abrasives

• Sizes: 2-3/4”, 5”, 6”, 8”, 10”, 12” (2” and 3” coming soon)
• Grits: 40, 60, 80, 100, 120, 150, 180, 220, 240, 320, 400, 600, 800, 1000, 1200, 1500, 2000, 2500, 3000
• Styles Available: PSA Disc with Tab, PSA rolls, Sheet Rolls, PSA Disc
• Grain Options: Gold Stearate Coated Aluminum Oxide, Zirconia, Ceramic, Aluminum Oxide (AO)
• Backing Options: Paper, Cloth, Film (for wet and dry applications)

Tool Compatibility: Random Orbital Sander, Jitterbug Sanders, Disc Sanders, Disk Sanders, Platen Disc Sanders, Belt Disc Sanders, DA Sanders, Pneumatic Air files, Sander Shoes, Longboard boards (both firm and flexible), hard sanding blocks, hand sanding applications

***Backing Pads sold separately.

Machine Brands that are compatible with Benchmark PSA Discs

• Black & Decker®
• Benchmark Abrasives
• Bosch®
• Ridgid®
• Ryobi®
• Skil®
• Porter Cable®
• Mirka®
• Festool®
• Cobalt®
• Dewalt®
• Milwaukee®
• Makita®
• Craftsman®
• Norton®