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BUTONAL NX 4190 is a mechanically stable latex polymer dispersion that is readily incorporated into cationic asphalt emulsions through addition to the soap solution (batch process) or co-milling (continuous process). BUTONAL NX 4190 provides excellent cohesion and adhesion properties with aggregate and significantly enhances the residue properties such as forced ductility- toughness and tenacity- torsional recovery- and softening point over conventional cationic polymers. BUTONAL NX 4190 is recommended for use in chip sealing- micro surfacing- and slurry seals.