Description
Heavy-Duty Cloth Sandpaper Rolls for Engineering & Workshop Use
The Hermes RB 346 J-Flex roll is a staple in engineering workshops, toolrooms, and fabrication environments.
Unlike paper-backed sandpaper, this cloth-backed abrasive roll (emery cloth roll) is designed to withstand:
- High pressure
- Sharp edges
- Continuous manual use
The result is a long-lasting, highly flexible abrasive that performs reliably where standard sandpaper fails.
Looking for finer grades?
Try Hermes WS Flex 18 C Wet & Dry Abrasive Rolls for fine finishing
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What Makes J-Flex Different?
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The J-Flex backing is a lightweight, highly flexible cloth that offers:
- Exceptional conformability → wraps around pipes, shafts, and contours
- High tear resistance → won’t snap during demanding use
- Controlled sanding → reduces flat spots on curved surfaces
This makes it ideal for “shoe-shine” sanding techniques used in lathe work and metal finishing.
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Why Choose Cloth Sandpaper Over Paper?
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Compared to wet & dry paper rolls, cloth-backed abrasives offer:
- Greater durability → ideal for aggressive sanding
- Improved flexibility under pressure
- Longer lifespan in workshop conditions
- Better performance on metal and hardwoods
If your sandpaper is tearing or wearing out too quickly, J-Flex cloth is the upgrade.
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Why Choose Rolls Over Sheets?
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Abrasive rolls offer key advantages:
- Cut to size → no wasted material
- Better access → ideal for tight or awkward areas
- Flexible use → wrap, tear, or shape to suit the job
- Workshop efficiency → perfect for repeated tasks
Cloth backed abrasives are also available in sheet form
Browse Starcke 641 PF Aluminium Oxide Emery Sandpaper
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Typical Applications
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- Metalwork & Fabrication – Deburring, rust removal, weld prep
- Lathe Work & Engineering – Polishing shafts, spindles, and cylindrical parts
- Maintenance & Repair – Cleaning corroded or worn components
- Woodworking – Shaping hardwoods and rough sanding
Technical Specifications
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| Feature | Specification |
|---|---|
| Brand | Hermes |
| Product Code | RB 346 J-Flex |
| Abrasive Type | Aluminium Oxide |
| Backing | J-Weight Flexible Cloth |
| Bonding | Synthetic Resin |
| Roll Size | 25mm x 50m |
| Available Grits | P80 – P400 |
| Use | Dry |
Recommended Products
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For best results, use this roll as part of a complete abrasive workflow:
Heavy Sanding & Deburring
Start with RB 346 J-Flex cloth rolls for aggressive material removal
Fine Surface Refinement
Move to wet & dry sandpaper rolls from Hermes (800 & 1200 grit)
Final Polishing
Finish with Micro-Mesh cushioned abrasive rolls or 3M micron polishing paper for a mirror finish.
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This progression ensures a smooth, professional finish from start to polish.
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