... injection Recommended dosage: 2-5% High consentration and good dispency 30%-40% carbon black masterbatchAdvantages:Eco-friendly, non-toxic, odorless, ... casting, extrusionmolding, blown film, foaming 4) Main applications: injection for PP,film blowing for LDPE ,HDPE5) Main final products: household appliances ... heavy-duty bag, water-proof plastic paper bag, 25Kg/bag, 30%-40% carbon black masterbatch