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TECHNICAL  DATA  SHEET

water based industrial polymer

OTTOPOL 522

Product Overview

HYDROXYL FUNCTIONAL ACRYLIC

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.

HIGH BLOCKING

Catalyzed coatings inherently have high blocking properties, when compared to systems that are not cross-linked.

RESISTANCE PROPERTIES

MEK200+ Rubs

Water24+ Hours

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.

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