Black UL94 VO HB level Flame Resistance Polycarbonate board

Specifications Level: UL94 V0, V2. HB

self-resistance

excellent impact resistance

smaller expansion coefficient

certification: ROHS

Black UL94 VO HB level Flame Resistance Polycarbonate board        The series product has these characteristics of good surface gloss, good heat resistance, self-extinguishing, excellent impact resistance, smaller expansion coefficient, size stability, fine electric property and chemicals resistance and good fatigue strength resistance, which meet ROHS instruction and UL safety norms.       UL94 fire prevention grade reach to V0 level, V2, HB. It is widely used in electronic components, electrical shell, switch panel, junction box and charge shell, auto equipment and instrument, and the panel printing with flame retardant requirements and so on.                 Charateristics of Polycarbonate board:        Impact resistance: The impact of PC board up to 3kg/cm. The impact strength of PC board is 250-300 times as common glass, is 20-30 times as acrylic sheets, is 2 times as toughened glass. And almost it’s no fracture risk. Falling the hammer with 3kg and two meters above it, that’s no crack. So it enjoyed the reputation of being of "safety glass" and "ring steel".          Resistance to flammability: PC board itself is not spontaneous combustion and have automatic quench. It accord with European Union ROHS instruction and strict UL safety standard, and UL94 fire prevention grade up to levelV0, levelV2, level HB. PC board itself is lighted 580°C. Remove from the fire source, it will be self-extinguish. It won't produce toxic gases, nor foster the fire spread when it’s burning.           Energy Saving: It keeps building cool in summer, and it keeps them warm in winter. The thermal conductivity (K value) of PC board is less than common glass and other plastics. The effect of heat insulation is 7%-25% higher than glass with equal level. The rate of heat insulation is highest to 49%. Thus it can reduce heat loss greatly, suit for buildings with warm equipments, belongs to environmental protection material.            light transmittance: daylighting is admirable, light transmittance rate up to 85 ~ 91%, and its transparency can be comparable with glass. In sunlight it won’t product yellowing, fogging or less light transmittance. UV coated board loss light rate is only 6%, but PVC is as high as 15% - 20% and glass fiber 12% - 20% ten years later.