| Model | Dry, EX Wet, TF Textured |
| Marca | Alpha |
| Wet / Dry Use | Dry |
| Diameter | 4" |
Alpha® Ceramica Dry is a hook-and-loop dry polishing system for all natural stones and cement-based composites such as concrete and terrazzo. A thicker diamond layer delivers better finish quality and longer life than typical dry pads. The 4" discs run on low-RPM sanders and polishers (best around 4,000 RPM) and are designed for edge polishing applications. The full grit sequence — #60, #200, #500, #1000, #2000, and #3000 — carries the edge from shaping through high-gloss finish without water.
| Part No. | Size | Grit | Color | Max RPM | UPC |
|---|---|---|---|---|---|
| CD40060R | 4" | #60 | Blue | 4,500 | 749173520846 |
| CD40200R | 4" | #200 | Yellow | 4,500 | 749173520747 |
| CD40500R | 4" | #500 | Red | 4,500 | 749173520754 |
| CD41000R | 4" | #1000 | Dark Green | 4,500 | 749173520761 |
| CD42000R | 4" | #2000 | Light Green | 4,500 | 749173520778 |
| CD43000R | 4" | #3000 | Brown | 4,500 | 749173520785 |
| CD40KIT | 4" | Set of 6 (All Grits) | Assorted | 4,500 | 749173520860 |
| Part No. | CD40060R |
| UPC | 749173520846 |
| Size | 4" (102 mm) |
| Type | Dry Diamond Polishing Disc |
| Color | Blue (#60 grit) |
| Attachment | Hook & Loop |
| Max RPM | 4,500 RPM (best around 4,000) |
| Recommended For | Initial dry grinding / shaping on edges |
| Packaged Weight | 0.10 lbs |
| Package Dimensions | 4.25" x 5.25" x 0.25" |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Japan |
| Part No. | CD40200R |
| UPC | 749173520747 |
| Size | 4" (102 mm) |
| Type | Dry Diamond Polishing Disc |
| Color | Yellow (#200 grit) |
| Attachment | Hook & Loop |
| Max RPM | 4,500 RPM (best around 4,000) |
| Recommended For | Intermediate dry polishing on edges |
| Packaged Weight | 0.10 lbs |
| Package Dimensions | 4.25" x 5.25" x 0.25" |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Japan |
| Part No. | CD40500R |
| UPC | 749173520754 |
| Size | 4" (102 mm) |
| Type | Dry Diamond Polishing Disc |
| Color | Red (#500 grit) |
| Attachment | Hook & Loop |
| Max RPM | 4,500 RPM (best around 4,000) |
| Recommended For | Intermediate dry polishing on edges |
| Packaged Weight | 0.10 lbs |
| Package Dimensions | 4.25" x 5.25" x 0.25" |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Japan |
| Part No. | CD41000R |
| UPC | 749173520761 |
| Size | 4" (102 mm) |
| Type | Dry Diamond Polishing Disc |
| Color | Dark Green (#1000 grit) |
| Attachment | Hook & Loop |
| Max RPM | 4,500 RPM (best around 4,000) |
| Recommended For | Final dry polishing on edges |
| Packaged Weight | 0.10 lbs |
| Package Dimensions | 4.25" x 5.25" x 0.25" |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Japan |
| Part No. | CD42000R |
| UPC | 749173520778 |
| Size | 4" (102 mm) |
| Type | Dry Diamond Polishing Disc |
| Color | Light Green (#2000 grit) |
| Attachment | Hook & Loop |
| Max RPM | 4,500 RPM (best around 4,000) |
| Recommended For | Final dry polishing on edges |
| Packaged Weight | 0.10 lbs |
| Package Dimensions | 4.25" x 5.25" x 0.25" |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Japan |
| Part No. | CD43000R |
| UPC | 749173520785 |
| Size | 4" (102 mm) |
| Type | Dry Diamond Polishing Disc |
| Color | Brown (#3000 grit) |
| Attachment | Hook & Loop |
| Max RPM | 4,500 RPM (best around 4,000) |
| Recommended For | Final dry polishing on edges |
| Packaged Weight | 0.10 lbs |
| Package Dimensions | 4.25" x 5.25" x 0.25" |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Japan |
| Part No. | CD40KIT |
| UPC | 749173520860 |
| Size | 4" (102 mm) |
| Type | Dry Diamond Polishing Disc Kit (Assortment) |
| Contents | One pad each of #60, #200, #500, #1000, #2000, #3000 grits |
| Attachment | Hook & Loop |
| Max RPM | 4,500 RPM (best around 4,000) |
| Recommended For | Full dry edge polishing sequence on natural stone, concrete & terrazzo |
| Packaged Weight | 0.77 lbs |
| Commodity Code | 6804.21.0000 |
| Country of Origin | Japan |
| Property | Detail |
|---|---|
| Application | Dry edge polishing on natural stone, concrete, terrazzo |
| Attachment | Hook & loop |
| Max RPM | 4,500 (best around 4,000) |
| Sizes Offered | 4 in (102 mm) |
| Grit Sequence | #60, #200, #500, #1000, #2000, #3000 |
| Diamond Layer | Thicker than typical dry pads for longer life |
| Backer Pads | Flexible for curves/bullnose, rigid for flat/straight edges |
| Recommended Tools | Low-RPM sanders & polishers; hand-held wet polishers OK |
| NOT For | High-speed grinders >4,500 RPM, floor machines, edge-polishing machines, top polishing of seamless countertops, engineered stone (when run dry) |
Ceramica Dry is designed for all natural stone and cement-based composites such as concrete and terrazzo. It is not recommended for engineered/quartz surfaces when run dry.
No. Ceramica Dry is not designed for high-RPM machines above 4,500 RPM. Use it on low-RPM sanders or polishers. Variable-speed grinders require operator verification of RPM.
It depends on the material and proper usage (grit sequence, RPM, pressure). The thicker diamond layer extends life compared to typical dry pads.
Currently the 4" diameter is available. Smaller diameters can be adapted by using smaller backer pads.
On average 2 to 3 passes per grit, using two across and one vertical. Never rush through a grit.
Designed to run at 4,500 RPM or slower; works best around 4,000 RPM.
You can use water for engineered stone, but water causes premature wear on some grits, so wet use is not recommended.
The #60 wears faster than the others because it is the shaping grit running dry, without the water cooling that wet resin pads enjoy.
Reduce pressure and increase RPM toward 4,000 for better air cooling.
No. The discs are designed for edge polishing only.
No. Ceramica Dry is not designed for automated edge-polishing machines.
Not recommended — the hook-and-loop system may produce a wavy surface on flat tops.
Flexible for curves and bullnose work, rigid for flat or straight edges.
No. Skipping grits does not work and always yields unsatisfactory results. Run the full sequence #60 → #3000.
Alpha® Ceramica Dry Polishing
⚠ WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov. Always wear appropriate PPE.