Asset 5icon LC PHENOLIC BOARD Product catalog Asset 5icon Specs Application: FPCB, Flex-rigid PCB,high rang back-board Material: Denatured phenolic resin, refined paper.Thickness: 0.20-1.60mmThickness Tolerance: ±0.10mmSize Tolerance: ±3mmDensity: ≥ 1250 kg/m3Hardness: 90±5 Shore DPencil Hardness: 5HWarpage:≤ 0.6% Of diagonal Asset 5icon Features 1. Excellent for drilling performance.2. A flat, hard surface has maximum support to minimize burrs.3. Reduce hole wall roughness.