HARDLEN EW-5250 is designed higher Chlorine content than other EW-series, so it is better wetting performance. Especially it is able to make film on the substrate for lower temperature baking system. EW-series contains emulsifier. Therefore, the storage stability is good.

HARDLEN EW-5515 is a solvent free waterborne grade for PP substrate as adhesion promoter. HARDLEN EW-5515 has good adhesion power to the substrate and good performance as a primer.