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FastPlus Abrasives

Sanding Tools & Accessories

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Published June 2026 by FastPlus Abrasives USA — fastplus.us — Last reviewed: June 2026

📋 At a Glance
Topic Sanding blocks, interface pads, backing pads, and scuff pads for hand and machine sanding
Audience Auto body techs, woodworkers, DIY refinishers, professional body shops
Compatible Sanders Festool ETS 150 / RO 150, Mirka DEROS, DeWalt DWAS150, Bosch, Makita, most DA sanders
Thread / Fit M8 and 5/16"-24 spindle thread (backing pad); universal 6" H&L (interface pads)
Source fastplus.us/collections/sanding-tools-accessories
⚡ Key Takeaways
  • The 6mm interface pad is for precision and delicate work — veneer, fine furniture, final passes at P220+. The 10mm is for contoured panels, curved bodywork, and anywhere you need the disc to conform rather than bridge.
  • The FB2 longboard (15.75") flattens panels and levels glue joints without rocking — something a DA sander physically cannot do on a wide flat surface.
  • The FB1 short block (7.8") reaches door jambs, edges, and tight spots where the longboard will not fit. Both connect to a vacuum hose for dust-free hand sanding.
  • The 44-hole backing pad is a universal replacement — fits M8 and 5/16"-24 threads, works with all 6" H&L discs regardless of hole pattern.
  • Scuff pads are reusable — rinse or blow out with compressed air to restore cut. The 20-pack includes 10 SiC (metal, paint degloss) and 10 AO (wood denib, primer scuff).
  • All accessories pair directly with FastPlus 2.75" rolls, strips, and 6" discs — no adapters needed.

The abrasive gets the credit, but the tool holding it does most of the real work. A disc on a worn backing pad tracks unevenly. A flat block on a curved panel leaves high spots. An interface pad that is too thick on a flat surface introduces flex you do not want. Getting the hardware right is what separates a consistent finish from one that needs rework.

FastPlus sanding tools and accessories — blocks, interface pads, backing pads

How to Pick the Right Tool for the Job

Situation Right Tool
Flattening a wide panel, leveling filler, guide coat work FB2 Longboard (15.75")
Edges, door jambs, tight spots, spot repair FB1 Short Block (7.8")
DA sanding curved panels, fenders, bumpers Interface Pad 10mm
Fine finishing, veneer, P220+ final passes Interface Pad 6mm
Velcro worn out on your DA sander 6" Backing Pad 44-Hole (universal replacement)
Between-coat scuffing, paint degloss, metal prep by hand Scuff Pads 20-Pack (SiC + AO)

The Full Lineup

🟠 Hand Sanding Blocks

Product Size Backing Use Case
FB2 Longboard Sanding Block 2.75" × 15.75" Hook & Loop Panel flattening, guide coat, primer leveling — P80 to P400
FB1 Short Sanding Block 2.8" × 7.8" Hook & Loop Spot repair, edges, tight areas — P60 to P400

Both blocks connect to a vacuum hose and are compatible with all FastPlus 2.75" wide sanding rolls and strips.

🔵 Interface Pads

Product Thickness Best For
Interface Pad 6mm (1/4") – 2-Pack 6mm Veneer, fine furniture, P220+ finishing, slight contours
Interface Pad 10mm (7/16") – 2-Pack 10mm Curved panels, fenders, bumpers, contoured bodywork

Both fit all standard 6" DA sanders via Hook & Loop. Compatible with Festool ETS 150, Mirka DEROS, DeWalt DWAS150, Bosch, and Makita. Universal multi-hole pattern works with any 6" disc.

🔧 Backing Pad

Product Thread Holes Compatibility
6" Backing Pad 44-Hole H&L M8 / 5/16"-24 44 holes Festool, Mirka, DeWalt, Bosch, Makita, most pneumatic DA sanders

The 44-hole pattern is compatible with all 6" H&L discs regardless of hole count — 5-hole, 8-hole, 15-hole, 47-hole, 119-hole all work.

⚪ Scuff Pads

Type Qty Use Case
Silicon Carbide (Ultra Fine) 10 pads Metal scuffing, paint degloss, stainless prep, pre-weld cleanup
Aluminum Oxide (Very Fine) 10 pads Wood denibbing, primer scuffing, plastic adhesion prep

Reusable — rinse with water or blow out with compressed air. Size: 6" × 9".

From a Customer

"FastPlus sanding blocks and accessories make my automotive projects so much easier. I can rely on them to deliver a smooth, flawless finish every time!"

— David B., Auto Body Specialist

FastPlus sanding accessories customer result

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Frequently Asked Questions

What is the difference between an interface pad and a backing pad?

The backing pad attaches directly to your DA sander spindle and holds the sanding disc via Hook and Loop - it is the base plate of your sander. The interface pad goes between the backing pad and the sanding disc, adding cushioning so the disc can conform to curved or contoured surfaces. On flat surfaces, skip the interface pad and run the disc directly on the backing pad. On curves and contours, add the interface pad to maintain even disc contact.

6mm or 10mm interface pad - which thickness do I need?

Use the 6mm pad for fine finishing, veneer, and surfaces with only slight contours - it adds minimal flex so you keep control at P220 and above. Use the 10mm pad for curved automotive panels, fenders, bumpers, and any surface with significant curvature - the extra thickness lets the disc wrap around the curve and maintain even contact. Using the 10mm on flat surfaces introduces unwanted flex, so match the thickness to the surface shape.

Will the 6" backing pad fit my Festool, Mirka, or DeWalt sander?

Yes. The FastPlus 6" backing pad has dual thread compatibility - M8 for most European sanders including Festool ETS 150 and Mirka DEROS, and 5/16"-24 for most North American sanders including DeWalt DWAS150, Bosch, and Makita. The 44-hole pattern works with all 6" Hook and Loop discs regardless of their hole count.

FB1 or FB2 sanding block - which one should I buy?

Buy both if you do serious hand sanding. The FB2 longboard (15.75") is for flattening - panel leveling, guide coat work, primer leveling on large flat areas. It bridges low spots and cuts the high ones. The FB1 short block (7.8") handles everything the longboard cannot reach - door jambs, edges, spot repairs, and tight areas. Both connect to a vacuum hose and use the same 2.75" wide FastPlus rolls and strips.

What sandpaper rolls and strips work with the FB1 and FB2 sanding blocks?

Both blocks use 2.75" (70mm) wide sanding media. Compatible FastPlus products include the PURO Ceramic Velcro Multi-Hole Roll (F737, 2.75" x 13yd), the Ceramic PSA Film Roll (F737, 2.75" x 13yd), and the PuroFilm Sanding Strips FT77 in 7.8" and 16.5" lengths. The FB2 longboard works best with the 16.5" strips or rolls cut to length. The FB1 short block works with the 7.8" strips or shorter roll cuts.

Are the scuff pads reusable?

Yes. The non-woven construction means they do not load up the same way sandpaper does. Rinse with water and let dry, or blow out with compressed air to restore the cutting surface. Each pad can be used multiple times before losing effectiveness. The 20-pack includes 10 Silicon Carbide pads (ultra fine, for metal and paint degloss) and 10 Aluminum Oxide pads (very fine, for wood denibbing and primer scuffing).

When should I replace my DA sander backing pad?

Replace the backing pad when the Hook and Loop surface no longer holds discs securely, when discs spin off during use, or when you notice uneven sanding patterns that were not there before. A worn backing pad is one of the most common causes of inconsistent finish quality that gets blamed on the disc. The FastPlus 44-hole replacement pad fits most professional DA sanders and restores full disc grip immediately.

Source: FastPlus Abrasives USA — fastplus.us. All specs reflect FastPlus Abrasives USA product testing as of June 2026.