Laminated Sheets: G5/G9, G10/FR-4, GPO-3, Phenolic, SMC and Vulcanized Fiber

Cut, punched and machined insulating plates for panels, barriers and structural parts.

💾 Product Catalog

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Products in this family

GPO-3 Polyester Glass Sheet

Track-resistant, V-0 sheet for busbar supports and barriers.

G5/G9 Glass Melamine Sheet

High-strength, arc-resistant sheet for switchgear parts.

Phenolic Cotton Laminated Sheets

Machinable phenolic plate for mechanical insulating parts.

Phenolic Cotton Cloth Laminated Sheet (3230)

General industrial phenolic plate for mechanical and electrical parts.

Bakelite Plate (Orange / Black)

Paper-phenolic plate for panels, tags and mechanical parts.

SMC Sheet Molding Compound

Moldable sheet compound for large insulated enclosures and parts.

Vulcanized Fiber (Fish Paper) Sheet

Fish-paper sheet for arc-facing and formed insulation parts.

Technical resources

Common questions

Can you punch holes without burrs?

Yes. Punched holes are produced burr-free on melamine, epoxy glass and phenolic plates up to the tooled thickness. For thicker or tight-tolerance holes we CNC machine instead of punch.

G10/FR-4 or GPO-3 sheet for a busbar support?

GPO-3 is the standard for busbar supports and barriers because of its track resistance and V-0 flame class. G10/FR-4 is chosen when you also need higher mechanical and moisture performance.

What tolerance can you hold on vulcanized fiber tubes?

For thin-wall vulcanized fiber sections on Laminated Sheets we work to ±0.05 mm on ID and OD. Knurl pitch, major and minor diameter and position are checked per drawing, and the print confirms capability rather than a blanket claim.

Is vulcanized fiber suitable for arc-facing fuse applications?

No. Arc-facing surfaces on Laminated Sheets call for ceramic-filled epoxy glass, melamine or a synthetic arc-quenching composite. Vulcanized fiber belongs on non-arc-facing mechanical bodies and end caps.

Can you supply COA and batch traceability?

Every batch of Laminated Sheets traces back to the incoming material certificate. Material COA, first-article inspection, in-process checks and final inspection reports are supplied per your quality plan on request.

Quote Laminated Sheets: G5/G9, G10/FR-4, GPO-3, Phenolic, SMC and Vulcanized Fiber from WELLELE

Start with the drawing for Laminated Sheets and your requirements: material grade, dimensions, tolerance and annual quantity. We match the grade against it and come back with manufacturability notes and a quotation.

Your enquiry about Laminated Sheets reaches sale@wellele.com directly and gets a reply within one business day. Drawing files can follow to the same address.

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