Rovene 4813 Styrene-butadiene rubber Ameripol Synpol-Mallard Creek Polymers Styrene copolymer >> Styrene butadiene emulsions ADHESIVE >> Water-based >> Pressure sensitive (PSA) SEALANT ROVENE® 4813 is a high gel content hot polymerized SBR latex with 30% bound styrene content. It has excellent shear stability and high tolerance for fillers and pH shock. It is easily tackified and gives high peel and shear strengths in adhesives and mastics. Sprayable. ROVENE® 4813 is recommended for pressure sensitive adhesives and mastics.. Extremely shear stable latex with wide versatility in formulating. Soft flexible films. High gel content, hot polymerized SBR latex. Used in pressure sensitive adhesives and mastics. Possesses very good shear stability and high tolerance for fillers and pH shock. Can be easily tackified. Gives high peel and shear strengths. Provides soft flexible films. Possesses a mixed synthetic emulsifier.