Butofan NS 299 SBR BASF ADHESIVE BUTOFAN NS 299 Is used in the manufacture of construction and laminating adhesives. Is a high molecular weight, resin and stabilized dispersion with good cohesive strength and a high percent elongation at break. In general, additives should be pre-neutralized to pH > 8.5-9.0 (depending on the system) prior to blending with Butofan® NS 299. The exact conditions should be determined by laboratory trials. High molecular weight SBR dispersion. Used in the manufacture of construction and laminating adhesives. Offers a good cohesive strength and a high percent elongation at break.