Solprene 412 Thermoplastic butadiene and styrene copolymer Dynasol Styrene block copolymer (SBC) >> Styrene butadiene styrene rubber, SBS ADHESIVE >> Hot-melt >> Pressure sensitive (HMPSA) Solprene 412 is a radial oil extended styrenebutadiene block copolymer having 30% of styrene content, most of it forming a polystyrene block which gives the polymer a thermoplastic behavior. It is oil-extended with 6 phr of Paraffinic oil. It develops properties of vulcanized rubber yet not requiring vulcanization. It is protected with a non staining antioxidant system and is essentially gel free with a very clear color. Solprene 412 is used as elastomeric modifier for asphalt and in shoe sole compounding, injection molding and other thermoplastic crafts. These adhesives are used in products such as masking tape, cellophane tape, insulating tape, tapes for sealing and binding, decorative contact paper and labels. Some recent applications are used for installing tiles and other heavy objects. Pressure-sensitive adhesives may be used on cloth, paper, films and sheet metal. The latter two are normally covered with a thin layer of fixative to improve the bonding of the adhesive. Formulations which only use natural rubber tend to soften over time, while those using SBRs become hard as a result of oxidization. Radial thermoplastic oil extended styrenebutadiene block copolymer. Used in pressure-sensitive adhesives. Develops properties of vulcanized rubber yet not requiring vulcanization. Offers adhesion to cloth, paper, films and sheet metal for PSA. Applications: pressure sensitive adhesives (masking tape, cellophane tape, insulating tape, tapes for sealing and binding, decorative contact paper and labels).