HDPE and CaCO3 Based Masterbatch is good for cast and blown film, injection and blow moulding. The Masterbatch improves dimensional stability, improves ESCR of blow mouldings and improves stiffness. The Masterbatch improves whiteness hence saving of pigment, good anti-fibrillations and improves anti slip and anti blocking property. The HDPE and CaCO3 Based Masterbatch helps in improving printability.