TECHNICAL DATA SHEET
water based industrial polymer
Ottopol 522 is an anionic hydroxyl functional acrylic emulsion. The functionality allows the polymer to cross-link with melamine or aziridine. The use of aziridine will result in a short pot life and will cross-link at room temperature. Formulations using aziridine will require a plasticizer or coalescent solvent to aid the film formation of the dried coating. Formulations using melamine and PTSA (Para-Toluene Sulfonic Acid) are stable for a minimum of thirty days. The starting formulation requires a web temperature of 180 degrees Fahrenheit to activate cross-linking of the resins. An increase in PTSA will lower the temperature required to activate cross-linking. Larger amounts of PTSA will increase the hardness of the dry film. There are no plasticizers or coalescent aids required for film formation when using a melamine resin with Ottopol 522.
Catalyzed coatings inherently have high blocking properties, when compared to systems that are not cross-linked.
Isopropyl Alcohol200+ Rubs
Household Cleaners200+ Rubs
Stain ResistanceDyes in Food
The cured coating has excellent resistance to many solvents and liquids. The stain resistance is excellent. Food and foods containing dyes can completely dry on the surface without staining. Removal of the dried substance requires little effort. It usually peels or scratches off the coating, requiring no cleaners or scrubbing.