Solder Mask

LB-1900 is a two component photoimageable solder mask, which is used in manufacturing high-precision printed circuit boards (PCB) which requires density and high reliability. The film coated has excellent heat and chemical resistance, and provides excellent insulation for the electric routines with high reliability in the extended use of PCB. Among this series, the super white LB1900 resist can be used in the LED light for energy saving. Part NOLB-1900Color, part Ared, yellow, blue, green, black, whiteColor, part BtransparentMixing ratioPart A : part B = 3:1Viscosity280 ± 20 ps at 25 DegC, VT-04Pre-curing first side15-20 minPre-curing second side20-25 minExposure energy300 - 800 mj/cm2, grade 9 - 12Post curing60 min, 150 - 155 DegCHardness pencil>=6HAdhesion100/100Heat Resistance260 DegC/20sInsulation1 x 1012 ΩShelf life3 month at 25 DegC in dark areaApplicationusedfor high tech PCB, and LED light for engery saving