Coatings for can and metal packaging

Lacquer EP-547-2

En

TU U 24.3-24514086-011-2004

Conclusion of the State Sanitary and Epidemiological Expertise of March 22, 2011 № 05.03.02-04/26512

EP-547-2 gold, elastic has parameters identical to lacquer EP-547, but has more plastic properties. Can be used for seamless cans 1, 2, 3.

The lacquer is designed to protect the outer and inner surfaces of all types of tin cans and lids from electrolytic and hot tin plating. After polymerization at t = 210-215 ℃ for 15 min lacquer forms a glossy golden coating, resistant to boiling and sterilization in aggressive environments. Used in a set with a thinner R-30, applied roller coating machines, the consumption of dry residue - 4.5-5.5 g/m2.

 

Specifications of lacquer EP-547-2
  1. Appearance of lacquer. Homogeneous transparent liquid from dark yellow to red-brown color, slight opalescence is allowed
  2. Appearance of the film. After drying, the lacquer forms a homogeneous glossy film of golden color without any foreign mechanical inclusions.
  3. Conventional viscosity according to the viscometer VZ-246 with nozzle diameter (4,000 ± 0,015) mm at temperature (20,0 ± 0,5) ℃ : within 90-140 sec.
  4. Mass fraction of non-volatile substances: 36-43%
  5. Film tensile strength: 7 mm.
  6. The strength of the film during stamping: without disturbing the continuous coating.
  7. Film resistance to sterilization at (120 ± 2) ℃, h, not less than:
    In distilled water - 1;
       In a 3% solution of sodium chloride - 1;
       In a 2% solution of tartaric acid - 1;
       In a 3% solution of acetic acid - 1.
  8. Adhesion of the film before and after sterilization, scores, not more: 1.
  9. Mass fraction of chemical substances in a solution containing 0.5% acetic acid and 2% sodium chloride after sterilizing the lacquer film and holding in the model medium for 24 hours at a temperature (40 ± 2) ℃, mg/dm3, not more:
       Formaldehyde - 0.1;
       Phenol - 0.05;
       Diphenylolpropane 0.01;
       Epichlorohydrin - 0.1;
       Lead salts are absent.
  10. Resistance of the lacquer film to the effect of the model medium after sterilization and holding in a thermostat at a temperature of (40 ± 2) ℃: 10 days.
  11. There is no porosity.
  12. Drying time to grade 3 at 210-215 ℃: no more than 15 minutes.

 

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