Styleze™ W polymers are random terpolymers of vinyl pyrrolidone, dimethylaminopropyl methacrylamide and methacryloylaminopropyl lauryl dimethyl ammonium chloride. These film-forming polymers promote and stabilize foam through their ability to reduce surface tension, have excellent adhesion to high energy substrates and form flexible, elastic, low-tack and heat-resistant films. Additional solution viscosity improvements can be achieved by the addition of salts.