Product Name: Violet polymer ctp plate. Uv ctp plate, polymer ctp plate Type: Negative-working Substrate: Electro-chemically grained and anodized lithographic aluminum Spectral sensitivity: 405 nm Exposure energy: 80 μj/cm2 Resolution: 3-97% at 175lpi Run length: 200, 000 impressions unbaked UV ink compatibility: Applicable Shelf life: 12 months when away from excessive cold, heat and humidity Working environment: Yellow light