PROBLEMS PROBABLE CAUSE REMEDIES Film Chipping Low film strength Increase film former    concentration Inadequate    plasticizer Increase plasticizer    concentration High pan rpm Reduce pan rpm Low spray rate Increase spray rate    Dilute Coating    suspension Very sharpTablet    edges Redesign Tablet    Tooling Film Peeling Very high spray     rate Reduce spray rate Low dry air    temp. Increase temp. Tacky films Add / increase anti    adherants Lack of adhesion    toTablet surface Add / include fillers    like MCC or HPC    in Tablet cores. Orange Peel Appearance Spray drying Increase solvents Fast drying rate Reduce air atom    pressure and    readjust spray    distance High atomisation    pressure Reduce Qty / or    temp.of dry air    Reduce atomisation    pressure Bridging (Across Logos, Wedges, Break lines etc) High spray rate    coupled with    equally and fast    drying Control spray rate     and drying rate     (This will be indicated by a lowering of Tablet bed temp.) Deep wedges on    Tablets Redesign tablet    tooling to avoid    this. Twinning High Spray Rate    (Over Wetting) Controlled Spray    Rate Inefficient Drying    system Drying Capacity as    per Spray Rate Shape of Tablet Avoiding Flat       Surfaces