The effect of die design on the die drool phenomenon was investigated for metallocene based LLDPE. It has been found that die exit opening and the flared die design can significantly reduce the die drool that die drool onset can be explained by the negative/non-monotonic pressure profile generated inside the die and/or at the die exit region. (C) 2008 Wiley Periodicals, Inc. J Appl Polym Sci 111: 1728-1737, 2009