Poster Chromo Base (PCB) This is the MG Bleached Kraft Paper variety used as base for chromo and art coating. The product needs to be spec and blemish free. The absorption rate needs to be low to avoid minimum coat consumption. Salient Features Usages - White shade - Machine Glazed - FDA and ROH Approved - Agro Based - GSM Range 50 to 80 - Available in Reels.