Chlorinated polyolefin 377W is a water dispersion of a chlorinated polyolefin that is formulated alkylphenol ethoxylate (APEO) free. It contains 2-amino-2-methyl-1-propanol as the neutralizing amine, which makes it more compatible with other waterborne resins and therefore more useful as an additive. CP 377W is compatible with many amine- neutralizable solution resins.