Phenolic Cotton Cloth Laminated Sheets
Machinable phenolic plate for mechanical insulating parts. Phenolic cotton sheet is the economical, machinable choice for mechanical insulating parts that are not arc-facing. We cut, punch and machine it to plate and component shape with tight hole position. Generally no. Use GPO-3 or melamine where arc or track resistance is required. Machinable phenolic rods for mechanical insulating parts.
Technical specifications
| Material | Phenolic cotton cloth laminate |
| Property | Good mechanical, machinable |
| Use | Mechanical insulating parts |
| Standard | Applicable standard to be confirmed against your drawing (TBC). |
| Operating temperature | -40 °C to +150 °C |
| Dielectric strength | ≥ 20 kV/mm (per ASTM test method) |
Applications by industry
- Insulating panels in machine tool and starter enclosures
- Silent gear and pulley blank stock
- Electrical-machine spacer and barrier sheets
- Locomotive/rolling-stock insulation plates
- Fixtures and tooling boards needing machining edge
- Custom thick sheets for body and chassis insulation
Why phenolic cotton laminate for this application
p>Thick cotton phenolic sheets are chosen where a barrier plate must stay flat, machine true and take impact. Common in rail and machine tooling rather than pure HV tracking duty. common in rail and machine tooling rather than pure HV tracking duty.Confirm panel bow and moisture uptake; specify sealed edges for precision cutouts. Lower tracking index than glass grades.
Standards: ASTM D709, IEC 60893-3-4.
Feature and remaining-wall review
ID/OD ground or turned; diamond tools for slotting and drilling to avoid delamination. Review feature depth, edge distance and remaining wall on Phenolic Cotton Cloth Laminated Sheets against the 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
Phenolic Cotton Cloth Laminated Rod
Related insulation component from the WELLELE catalog.
GPO-3 Polyester Glass Sheet
Related insulation component from the WELLELE catalog.
Bakelite Plate (Orange / Black)
Related insulation component from the WELLELE catalog.
Common questions
Where would you specify Phenolic Cotton Cloth Laminated Sheets?
Typical applications are mechanical insulating parts. Send the duty and the environment, and we will say whether this grade is the right one for Phenolic Cotton Cloth Laminated Sheets.
Which material is Phenolic Cotton Cloth Laminated Sheets manufactured from?
The material is Phenolic cotton cloth laminate. Alternate grades can be quoted against your drawing.
Is a material certificate of analysis provided for Phenolic Cotton Cloth Laminated Sheets?
Yes. A material certificate of analysis accompanies every batch of Phenolic Cotton Cloth Laminated Sheets, and first-article inspection or additional electrical testing can be added to your specification.
Can Phenolic Cotton Cloth Laminated Sheets be produced to a customer drawing?
Thickness and sheet size are supplied to your drawing. Give us the drawing for Phenolic Cotton Cloth Laminated Sheets with the target quantity and we will confirm feasibility and price.
Engineering Guides & Selection Notes
Technical articles that go deeper on selecting and specifying Phenolic Cotton Cloth Laminated Sheets.
Get pricing for Phenolic Cotton Cloth Laminated Sheets
Send the drawing for Phenolic Cotton Cloth Laminated Sheets with your annual volume. We check the material against the duty and tolerance on it, verify ID, OD, wall and features, then come back with manufacturability notes and pricing for Phenolic Cotton Cloth Laminated Sheets.