Astro Pneumatic 4605 PSA Backing Pad, 5 inch, Polyurethane, 5/16-24 Thread, Max 12000 RPM

Astro Pneumatic 4605 PSA Backing Pad, 5 inch, Polyurethane, 5/16-24 Thread, Max 12000 RPM

• Astro Pneumatic 4605 is a 5 inch polyurethane PSA backing pad for dual action random orbit sanders. It features a tapered 29 degree edge for flexibility, a 5/16-24 UNF thread, and a 12000 RPM rating for car detailing and sanding tasks.
• Features:
  • Polyurethane construction provides durability and consistent support for PSA sanding discs, improving finish quality.
  • Tapered 29 degree edge increases edge flexibility for contour work and reduces gouging risk.
  • 5/16-24 UNF female thread fits common angle DA random orbit sanders for quick setup.
  • Rated to 12000 RPM to handle typical DA sanding speeds safely.
  • General purpose accessory for DA sanders; not a replacement part for a specific tool.
• Specifications:
  • Manufacturer: Astro Pneumatic
  • Part Number: 4605
  • Type: PSA backing pad for dual action random orbit sanders
  • Diameter: 5 inch
  • Material: Polyurethane
  • Attachment Type: PSA (pressure sensitive adhesive) discs
  • Thread: 5/16-24 UNF
  • Max Speed: 12000 RPM
  • Weight: 0.22 lb
  • System Compatibility/Application: Fits DA random orbit sanders with 5/16-24 spindle; for sanding and car detailing
• The PSA backing pad can also be referred to as 5 inch sanding pad, polyurethane DA backing pad, 5/16-24 backing plate, random orbit sander pad, and Astro 4605 backing pad.

Astro Pneumatic supplies professional automotive and industrial air tools and accessories, including sanders, polishers, and backing pads for surface preparation and detailing.

Q: Which sanders will this pad fit?
A: Any dual action random orbit sander with a 5/16-24 UNF spindle that accepts 5 inch PSA discs.

Q: What disc type does it use?
A: PSA style sanding discs that adhere to the pad with pressure sensitive adhesive.

Q: Why choose polyurethane over foam?
A: Polyurethane offers better durability and support, helping maintain a flatter finish and longer pad life in daily shop use.