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Pricelist: General Price List (USD) Pricelist
Pricelist: General Price List (USD) Pricelist

Alpha® Rotary Backer Pads

Soft molded urethane backer pads engineered for rotary polishers. The flexible urethane edge absorbs vibration and rebounds smoothly for contour work, while the 5/8"-11 thread fits standard rotary polishers. Available in five sizes (3" through 8") with Hook & Loop attachment for fast pad changes, plus an 8" Adhesive (PSA) version for pressure-sensitive pads.

Features

  • Soft molded urethane with flexible edge
  • Urethane backing for greater flexibility and excellent polishing
  • Ideal for contour polishing
  • Compatible with foam, wool, and microfiber pads
  • Hook & Loop attachment for fast pad changes (HL models)
  • Pressure-sensitive adhesive surface (GL/PSA model)
  • Well-balanced for smooth polishing
  • Absorbs vibrations with great rebound performance
Part No. Size Attachment Thread UPC
MP358HL 3" Hook & Loop 5/8"-11 749173561078
MP558HL 5" Hook & Loop 5/8"-11 749173561085
MP658HL 6" Hook & Loop 5/8"-11 749173561092
MP758HL 7" Hook & Loop 5/8"-11 749173561177
MP858HL 8" Hook & Loop 5/8"-11 749173561061
MP858GL 8" Adhesive (PSA) 5/8"-11 749173561054
  1. Thread the backer pad onto your rotary polisher’s 5/8"-11 spindle. Hand-tighten firmly.
  2. For Hook & Loop (HL) models: press the foam, wool, or microfiber pad squarely onto the velcro face until fully seated.
  3. For Adhesive (GL/PSA) models: peel the liner from a PSA pad and press it firmly onto the adhesive face. Replace pad when adhesion weakens.
  4. Start at a low RPM to seat the pad and check balance before applying polishing compound.
  5. Apply even pressure during polishing — the urethane edge will flex to follow contours.
  6. After use, brush off debris and store flat in a clean, dry area to preserve adhesion.
3" — Hook & Loop — MP358HL
Part No. MP358HL
UPC 749173561078
Size 3"
Attachment Type Hook & Loop
Thread 5/8"-11
For Use With Foam, Wool, Microfiber Pads & Sandpaper
Packaged Weight 0.10 lbs
Package Dimensions 6" x 2" x 7"
Commodity Code 3926.90.9090
Country of Origin China
5" — Hook & Loop — MP558HL
Part No. MP558HL
UPC 749173561085
Size 5"
Attachment Type Hook & Loop
Thread 5/8"-11
For Use With Foam, Wool, Microfiber Pads & Sandpaper
Packaged Weight 0.25 lbs
Package Dimensions 10" x 2" x 11"
Commodity Code 3926.90.9989
Country of Origin China
6" — Hook & Loop — MP658HL
Part No. MP658HL
UPC 749173561092
Size 6"
Attachment Type Hook & Loop
Thread 5/8"-11
For Use With Foam, Wool, Microfiber Pads & Sandpaper
Packaged Weight 0.35 lbs
Package Dimensions 10" x 2" x 11"
Commodity Code 3926.90.9989
Country of Origin China
7" — Hook & Loop — MP758HL
Part No. MP758HL
UPC 749173561177
Size 7"
Attachment Type Hook & Loop
Thread 5/8"-11
For Use With Foam, Wool, Microfiber Pads & Sandpaper
Packaged Weight 0.45 lbs
Package Dimensions 10" x 2" x 11"
Commodity Code 3926.90.9989
Country of Origin China
8" — Hook & Loop — MP858HL
Part No. MP858HL
UPC 749173561061
Size 8"
Attachment Type Hook & Loop
Thread 5/8"-11
For Use With Foam, Wool, Microfiber Pads & Sandpaper
Packaged Weight 0.60 lbs
Package Dimensions 10" x 2" x 11"
Commodity Code 3926.90.9989
Country of Origin China
8" — Adhesive (PSA) — MP858GL
Part No. MP858GL
UPC 749173561054
Size 8"
Attachment Type Adhesive (PSA)
Thread 5/8"-11
For Use With Pressure Sensitive Adhesion pads
Packaged Weight 0.60 lbs
Package Dimensions 10" x 2" x 11"
Commodity Code 3926.90.9989
Country of Origin China
Property Detail
Material Molded urethane (soft) with flexible edge
Thread 5/8"-11 (standard rotary polisher arbor)
For Use On Rotary Polishers
Available Sizes 3" · 5" · 6" · 7" · 8"
Attachment Types Hook & Loop (HL) · Adhesive / PSA (GL)
Country of Origin China
  • BMP-700 — Brushless Variable Speed Rotary Polisher (compatible 5/8"-11 spindle)
  • Alpha Microfiber Pads — for final polishing
  • Alpha Wool Pads — for cutting / compound stage
  • Diamond Face Foam Pads — for surface refinement

No frequently-asked questions are currently published for this product. Contact us for application help — e-commerce@dynamicstonetools.com.

No product-specific videos are currently available from the manufacturer or DST.

No data sheets are currently published by the manufacturer for this product.

⚠ WARNING: This product can expose you to chemicals including Nickel and Carbon Black, which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov. Always wear appropriate PPE.