| Size | GP3M14PD, GP3M16PD, GP4M14PD, GP4M16PD, GP5M14PD, GP5M16PD, GP25/8PD, GP35/8PD, GP45/8PD, GP55/8PD |
| Brand | Alpha |
| Wet / Dry Use | Wet & Dry |
Alpha® Flexible Backer Pads are the hook-and-loop carrier behind Alpha’s wet polishing system — the preferred choice for stone fabricators, tile contractors, monumentalists and restoration crews. The pad body is engineered to flex through tight contours and inside curves so polishing discs, sandpaper and felt wheels stay in full contact with the work piece. Available in 2", 3", 4" and 5" diameters with 5/8"-11, M14 or M16 threads, the pads fit virtually every popular wet polisher and variable-speed grinder.
| Part No. | Size | Thread | Type | Max RPM | UPC |
|---|---|---|---|---|---|
| GP25/8PD | 2" | 5/8"-11 | Flexible | 6,000 RPM | 749173461316 |
| GP35/8PD | 3" | 5/8"-11 | Flexible | 6,000 RPM | 749173520235 |
| GP3M14PD | 3" | M14 | Flexible | 6,000 RPM | 749173520266 |
| GP3M16PD | 3" | M16 | Flexible | 6,000 RPM | 749173520280 |
| GP45/8PD | 4" | 5/8"-11 | Flexible | 6,000 RPM | 749173520389 |
| GP4M14PD | 4" | M14 | Flexible | 6,000 RPM | 749173520419 |
| GP4M16PD | 4" | M16 | Flexible | 6,000 RPM | 749173520433 |
| GP55/8PD | 5" | 5/8"-11 | Flexible | 6,000 RPM | 749173520532 |
| GP5M14PD | 5" | M14 | Flexible | 6,000 RPM | 749173520563 |
| GP5M16PD | 5" | M16 | Flexible | 6,000 RPM | 749173520587 |
| Part No. | GP25/8PD |
| UPC | 749173461316 |
| Type | 2" Flexible Backer Pad |
| Attachment | 5/8"-11 thread |
| Recommended For | Wet polishing with hook-and-loop polishing pads |
| Packaged Weight | 0.30 lbs |
| Package Dimensions | 4.5" x 3.5" x 1.5" |
| Commodity Code | 8466.91.0000 |
| Country of Origin | Japan |
| Part No. | GP35/8PD |
| UPC | 749173520235 |
| Type | 3" Flexible Backer Pad |
| Attachment | 5/8"-11 thread |
| Recommended For | Wet polishing with hook-and-loop polishing pads |
| Packaged Weight | 0.30 lbs |
| Package Dimensions | 4.5" x 3.5" x 1.25" |
| Commodity Code | 8466.91.0000 |
| Country of Origin | Japan |
| Part No. | GP3M14PD |
| UPC | 749173520266 |
| Type | 3" Flexible Backer Pad |
| Attachment | M14 thread |
| Recommended For | Wet polishing with hook-and-loop polishing pads |
| Packaged Weight | 0.30 lbs |
| Package Dimensions | 4.5" x 3.5" x 1.25" |
| Commodity Code | 8466.91.0000 |
| Country of Origin | Japan |
| Part No. | GP3M16PD |
| UPC | 749173520280 |
| Type | 3" Flexible Backer Pad |
| Attachment | M16 thread |
| Recommended For | Wet polishing with hook-and-loop polishing pads |
| Packaged Weight | 0.30 lbs |
| Package Dimensions | 4.5" x 3.5" x 1.25" |
| Commodity Code | 8466.91.0000 |
| Country of Origin | Japan |
| Part No. | GP45/8PD |
| UPC | 749173520389 |
| Type | 4" Flexible Backer Pad |
| Attachment | 5/8"-11 thread |
| Recommended For | Wet polishing with hook-and-loop polishing pads |
| Packaged Weight | 0.40 lbs |
| Package Dimensions | 4" x 4" x 1.25" |
| Commodity Code | 8466.91.0000 |
| Country of Origin | Japan |
| Part No. | GP4M14PD |
| UPC | 749173520419 |
| Type | 4" Flexible Backer Pad |
| Attachment | M14 thread |
| Recommended For | Wet polishing with hook-and-loop polishing pads |
| Packaged Weight | 0.40 lbs |
| Package Dimensions | 4" x 4" x 1.25" |
| Commodity Code | 8466.91.0000 |
| Country of Origin | Japan |
| Part No. | GP4M16PD |
| UPC | 749173520433 |
| Type | 4" Flexible Backer Pad |
| Attachment | M16 thread |
| Recommended For | Wet polishing with hook-and-loop polishing pads |
| Packaged Weight | 0.40 lbs |
| Package Dimensions | 4" x 4" x 1.25" |
| Commodity Code | 8466.91.0000 |
| Country of Origin | Japan |
| Part No. | GP55/8PD |
| UPC | 749173520532 |
| Type | 5" Flexible Backer Pad |
| Attachment | 5/8"-11 thread |
| Recommended For | Wet polishing with hook-and-loop polishing pads |
| Packaged Weight | 0.60 lbs |
| Package Dimensions | 5" x 5" x 1.5" |
| Commodity Code | 8466.91.0000 |
| Country of Origin | Japan |
| Part No. | GP5M14PD |
| UPC | 749173520563 |
| Type | 5" Flexible Backer Pad |
| Attachment | M14 thread |
| Recommended For | Wet polishing with hook-and-loop polishing pads |
| Packaged Weight | 0.60 lbs |
| Package Dimensions | 5" x 5" x 1.5" |
| Commodity Code | 8466.91.0000 |
| Country of Origin | Japan |
| Part No. | GP5M16PD |
| UPC | 749173520587 |
| Type | 5" Flexible Backer Pad |
| Attachment | M16 thread |
| Recommended For | Wet polishing with hook-and-loop polishing pads |
| Packaged Weight | 0.60 lbs |
| Package Dimensions | 5" x 5" x 1.5" |
| Commodity Code | 8466.91.0000 |
| Country of Origin | Japan |
| Property | Detail |
|---|---|
| Maximum Speed | 6,000 RPM (operate < 4,000 RPM) |
| Application | Wet Polishing Only |
| Backing | Hook & Loop |
| Thread Options | 5/8"-11, M14, M16 |
| Diameters | 2", 3", 4", 5" |
| Country of Origin | Japan |
2", 3", 4" and 5" diameters in 5/8"-11, M14 or M16 thread.
Hand-held wet polishers such as the Alpha® AIR-680 and VSP-320, plus any variable-speed grinder that can run below 4,000 RPM with matching thread and water feed.
Do not exceed 4,000 RPM in service. The pads are rated to 6,000 RPM but pad life and safety improve dramatically below 4,000 RPM.
Only if the grinder is variable-speed, can be slowed below 4,000 RPM, has the matching spindle thread and an external water feed.
The pad face is hook-and-loop — press hook-backed polishing discs directly onto the pad.
Choose an undersize pad so the polishing disc can wrap and conform to the radius.
Wet polishing only. Running them dry will damage both the pad and the abrasive.
Rinse off slurry, hang the pad to air-dry, and keep the hook face free of grit and debris.
No product-specific videos are currently available from the manufacturer or DST.
⚠ WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov. Always wear appropriate PPE.
