Acronal 4 F n-Butyl acrylate BASF Acrylics/ Acrylates >> Butyl acrylate copolymers, BA SEALANT Acronal 4 F Polymer based on n-butyl acrylate. Tg (DSC) C ca.-40, tacky plasticizing resins, excellent resistance to light and aging. Used in cellulose nitrate formulations for lacquers to be applied on paper and plastic film, heat-sealable lacquers, coating and laminating aluminum foil, and coating plastics. With chlorinated binders yield saponification-resistant coatings on metal, concrete, asbestos cement, etc. Improve the adhesion of one-component and two-component primers. Polymer based on n-butyl acrylate. Used in cellulose nitrate formulations for heat-sealable lacquers. Provides tacky plasticizing resin, and very good resistance to light and aging. Improves adhesion.