NP-175F (170Tg Phenolic FR4) core Core (inches) (mm) Construction Resin Content 0.002 0.05 106*1 68.00% 0.0025 0.06 1080*1 54.00% 0.003 0.08 1080*1 63.00% 0.0035 0.09 2113*1 67.00% 0.004 0.10 2116*1 44.00% 0.0045 0.11 2116*1 44.00% 0.005 0.13 1080*2 57.00% 0.005 0.13 2116*1 ...