Rigid laminates from FR4 to GPO-3, cut to your drawing.
Epoxy glass, phenolic, polyester and silicone laminates in sheet, tube and rod — cut, machined and drilled for electrical and mechanical structures.
Flagship rigid laminates
Grade letters are promises about resin and reinforcement.
FR4, G11, 3240 and GPO-3 differ in resin chemistry, reinforcement and thermal class — not just in price. Substituting by appearance risks hot spots, tracking and mechanical failure. We quote the grade you specify, or flag when an equivalent genuinely qualifies.
Choose by service condition
Click any grade to view its applications, material data and quotation checklist on this page.
FR4 / G10 Epoxy Glass Laminate
Glass-fabric epoxy laminate in sheet, tube and rod — the reference electrical-mechanical material at class B (130°C).
View specificationsG11 / FR5 Epoxy Glass Laminate
High-temperature epoxy glass laminate retaining mechanical strength at class F (155°C) for hot-running equipment.
View specifications3240 Epoxy Glass Sheet
Epoxy-phenolic glass laminate — the economical class B alternative, widely stocked for general insulation structures.
View specificationsPhenolic Cotton Cloth Laminate
Cotton-cloth phenolic laminate with mechanical toughness and clean machining for gears, guides and wear parts.
View specificationsGPO-3 Glass Polyester Laminate
Glass-mat polyester laminate with arc and tracking resistance for switchgear supports and busbar structures.
View specificationsPhenolic Paper (Bakelite) Sheet
Paper-based phenolic laminate — economical and easy to punch, the classic for terminal boards and insulation plates.
View specificationsAnti-Static Epoxy Glass Laminate
Epoxy glass mat laminate with anti-static properties for fixtures and structures near sensitive electronics.
View specificationsPolyimide Glass Fiber Laminate
Polyimide-resin glass laminate for the highest temperature rigid-insulation duty, beyond epoxy capabilities.
View specificationsSilicone Resin Glass Cloth Laminate (G7)
G7 silicone glass laminate — class H thermal endurance with good arc resistance for hot electrical structures.
View specificationsA safer path from requirement to quotation
- 01Define assembly function
- 02Select candidate material
- 03Review form, fit and processing
- 04Agree inspection evidence
Buyer questions, answered precisely
FR4 vs G11 vs 3240: Grade Selection
Three epoxy-glass grades, three price-performance points — pick by temperature and stress, not habit.
ReadPhenolic Paper vs Cotton Cloth Laminates
Paper punches cheap parts; cotton cloth machines tough ones. Know which job you have.
ReadGPO-3 for Arc-Resistant Structures
Where arcs can strike, polyester glass-mat earns its specification — epoxy glass is not a substitute.
ReadRigid Laminate Machining & RFQ Checklist
Grade, form, thickness, machining and marking — the five lines of a clean laminate RFQ.
ReadSend the drawing.
Define the duty.
Tell us the material, form, dimensions, quantity, operating temperature, destination and inspection requirements. We will review the application before quotation.