Robuta

https://www.nist.gov/publications/flow-induced-coating-polymer-processing-additives-development-frustrated-total-internal Flow Induced Coating of Polymer Processing Additives: Development of Frustrated Total Internal... Feb 17, 2017 - In the extrusion of polyethylene (PE), fluoropolymer-processing additives (PPA) are used to eliminate the surface defect known as sharkskin by coating the die w polymer processing additivesflowinducedcoating