product description
CEM-3 Copper Clad Laminate Specifications
Color: Milky White / Translucent / Yellow
Thickness: 0.8–1.6 mm
Regular Size: 915 × 1220 mm (36″ × 48″); 1020 × 1220 mm (40″ × 48″)
Copper Cladding: 18 μm / 35 μm / 70 μm
Flammability: UL94-V0
Features
Excellent mechanical machinability and punching performance, with significantly lower drill bit wear compared with FR-4.
Electrical properties and PCB processing performance are similar to FR-4, making it suitable for various PCB manufacturing applications.
Complies with IPC-4101C/12 specifications.
CEM-3 Copper Clad Glass Mat Composite Laminate Parameters
| Test Item | Unit | Test Condition | Specification (IPC-4101C) |
| Peel Strength (1 oz.) | N/mm | 125°C | AABUS |
| Peel Strength (1 oz.) | N/mm | Float 260°C / 10 Sec | AABUS |
| Thermal Stress | Sec | Float 260°C / Unetched | ≥10 |
| Bow / Twist | % | A | ≤1.0 |
| Flexural Strength | N/mm² | Warp | ≥276 |
| Flexural Strength | N/mm² | Fill | ≥186 |
| Flammability | Rating | UL94 | UL94 V-0 |
| Surface Resistivity | MΩ | C-96/35/90 | ≥1.0 × 10⁴ |
| Volume Resistivity | MΩ·cm | C-96/35/90 | ≥1.0 × 10⁶ |
| Dielectric Constant | – | Etched / @1 MHz | ≤5.4 |
| Loss Tangent | – | Etched / @1 MHz | ≤0.035 |
| Arc Resistance | Sec | D-48/50 + D-0.5/23 | ≥60 |
| Moisture Absorption | % | D-24/23 | ≤0.5 |
| Comparative Tracking Index | V | Etched / 0.1% NH₄Cl | ≥175 |
CEM-3 Copper Clad Laminate Applications
CEM-3 copper clad glass mat composite laminate is widely used in electronic and electrical products, including photoelectric equipment, power supplies, televisions, refrigerators, washing machines, and electronic musical instruments.
CEM-3 Copper Clad Laminate Purchasing Information
| Base Color | Thickness (mm) | Copper Cladding (μm) | Regular Size (mm) |
| Milky White / Translucent / Yellow | 0.8–1.6 | 18 / 35 / 70 |
915 × 1220 (36″ × 48″) 1020 × 1220 (40″ × 48″) |
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