Tackifier resin dispersions are aqueous, solvent-free dispersions for the manufacture of pressure-sensitive adhesives based on acrylic, natural rubber or SBR emulsions. When formulated correctly they provide an excellent balance of adhesion and cohesion to a wide range of substrates. It can run on industry standard coaters at high speed due to its excellent stability. All available grades are alkyl phenol ethoxylate (APE) free.