Coatings for can and metal packaging

Enamel EP-5147

En

TU U 6-24514086-004-98

Hygienic conclusion of the state sanitary and hygienic examination for domestic products of September 22, 1998 № 5.08.07/4296

Enamel is a suspension of aluminum powder (or paste) in epoxy phenol lacquer.

Enamel is designed for inner coating of cans of white and chrome tinplate and lids to them, as well as lids for canned glass containers with acidic and protein medium (meat, fish, green peas, etc.).

It is applied either by roller method or by spraying method with a rate of 1 layer on a dry residue - 6-8 g/m2, polymerization time at t = 210-215oC not more than 15 minutes.

 

Specifications of enamel EP-5147
  1. Appearance of enamel. Homogeneous opaque liquid of gray color.
  2. Appearance of the film. After drying, the enamel forms an even glossy film of silvery-gray color without any foreign mechanical inclusions.
  3. Conventional viscosity according to the viscometer VZ-246 with a nozzle diameter of 4 mm (VZ-4) at a temperature (20,0 ± 0,5) оС: 100-150 sec.
  4. Mass fraction of non-volatile substances: 38-45%.
  5. Drying time to grade 3 at 210-215 °C: no more than 15 minutes.
  6. The strength of the film during stamping: without disturbing the continuous coating.
  7. Film resistance to sterilization at (120 ± 2) °С, h, not less than:
        In distilled water -1;
        In a solution of sodium chloride (3.0 ± 0.1)% -1;
        In the proteinaceous liquid -1;
        In a solution of acetic acid (0.5 ± 0.05)% and sodium chloride (2.0 ± 0.1)% -1.
  8. Adhesion of the film before and after sterilization points, not more: 1.
  9. Mass fraction of chemical substances in solution, mg / dm3, not more than:
        Formaldehyde - 0.1;
        Phenol - 0.05;
        Diphenylpropane - 0.01;
        Epichlorohydrin - 0.1;
        Salts of lead and zinc are absent.
  10. There is no porosity.
  11. Resistance of the enamel film to the action of the model medium after sterilization and holding in the thermostat at (40 ± 2) °C: 10 days.

 

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