Fiber Sanding Discs on Vulcanized Fiber Backing
Vulcanized-fiber backing discs for bonded abrasive wheels. Abrasive discs are mounted on a vulcanized fiber backing for rigidity and heat resistance. We punch and balance the backing to the disc specification. Diameter, arbor hole and thickness follow your disc drawing; we check flatness and balance before shipment. Yes. Arbor hole and diameter are punched or machined to the disc spec and checked
Vulcanized-fiber backing discs for bonded abrasive wheels. Abrasive discs are mounted on a vulcanized fiber backing for rigidity and heat resistance. We punch and balance the backing to the disc specification. Diameter, arbor hole and thickness follow your disc drawing; we check flatness and balance before shipment. Yes. Arbor hole and diameter are punched or machined to the disc spec and checked
Technical specifications
| Material | Vulcanized fiber backing |
| Form | Punched disc with arbor hole |
| Check | Flatness and balance |
| Standard | ASTM D2491 (vulcanized fiber), IEC 60269 (fuse dimensions), UL 94 V-0 (flammability, material dependent). |
| Operating temperature | -40 °C to +105 °C |
| Dielectric strength | ≥ 20 kV/mm (per ASTM test method) |
💾 Datasheets & Test Reports
Download the technical data sheet for this product (PDF).
Information required for quotation
| Base tube | Approved material grade, ID, OD, wall and conditioning as per drawing |
| Datums | Drawing datum scheme and measurement reference |
| Key dimensions | Feature positions, depths, pitch and diameters reviewed before quotation |
| Thread / profile | Standard or custom profile, class, depth, engagement and gage method |
| Other features | Holes, slots, steps, chamfers, cuts and marking |
| Acceptance | Tolerances, sampling, gages, FAI and inspection report |
| Order | Prototype and production quantity, packaging and delivery target |
Applications by industry
- Reinforcing backing disc for coated abrasive discs
- Metal grinding and blending disc backings, 4-9 inch sizes
- Wood and paint sanding disc support plates
- Hook-and-loop and PSA abrasive carrier discs
- Weld-seam grinding backing plates
- Custom die-cut disc backings for abrasive OEM
Why vulcanized fiber (backing plate) for this application
The fibrous backing plate gives coated abrasives the stiffness to track the work and the edge resilience to keep cutting in grinding and blending. Vulcanized fibre is specified here for its spring-back and surface flatness.
Not an electrical product — this is mechanical backing stock. Confirm disc diameter, arbor-hole and thickness burst/tensile requirement before machining.
Standards: FEPA grade backing performance; confirm wet/dry and grain-adhesion grade.
Feature and remaining-wall review
ID/OD ground or turned; CNC knurling, threading, slotting and cutting to drawing. Feature depth and remaining wall reviewed pre-quotation. Review feature depth, edge distance and remaining wall against critical geometries. Capability is confirmed on your drawing, not from a blanket tolerance.
Inspection and traceability
We state the control plan with you. Batch traceability links raw material lot to finished part.
- First-article inspection (FAI) per your plan
- In-process dimensional checks at every station
- Batch certificate of conformance (COA) supplied on request
- Lot traceability to incoming material certificate
- Dielectric strength and insulation resistance testing available on request
Related components
Vulcanized Fiber (Fish Paper) Sheet
Related insulation component from the WELLELE catalog.
Custom Vulcanized Fiber Tubes
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Vulcanized Fiber Washers
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Common questions
What is the standard for vulcanized fiber tubes used in fuse assemblies?
Vulcanized fiber tubes for fuse bodies are referenced to IEC 60269 for body dimensions and end-cap geometry. Material follows ASTM D2491 (fish paper) and UL 94 V-0 for flammability. Specify the fuse link type and voltage class and we confirm the grade and tolerance.
What tolerance can you hold on vulcanized fiber tubes?
On thin-wall vulcanized fiber sections we typically hold ±0.05 mm on ID and OD. Knurl pitch, major/minor diameter and position are reviewed per drawing. Capability is confirmed against your print, not published as a blanket claim.
Is vulcanized fiber suitable for arc-facing fuse applications?
No. For arc-facing surfaces, use ceramic-filled epoxy glass, melamine or synthetic arc-quenching composites. Vulcanized fiber is for non-arc-facing mechanical bodies and end caps.
Can you supply COA and batch traceability?
Every batch is traceable to the incoming material certificate. Material COA, first-article inspection (FAI), in-process checks and final inspection reports are supplied per your plan on request.
Can you punch the arbor hole to size?
Every batch is traceable to the incoming material certificate. Material COA, first-article inspection (FAI), in-process checks and final inspection reports are supplied per your plan on request.
Engineering Guides & Selection Notes
Related technical articles that help specify this product.
Get pricing for Fiber Sanding Discs on Vulcanized Fiber Backing
Attach the drawing with annual volume. We check the material against your duty and tolerance, verify ID / OD / wall / features, and respond with manufacturability notes and pricing.