EKOLAK E/P SEMI GLOSS

semi-gloss (E/P-01-3-xxxxx),
semi-matt (E/P-01-4-xxxxx),
matt (E/P-01-5-xxxxx), and
Ekolak coatings with average mechanical properties (E/P-04-1-xxxxx)

General information:

• Base: binding on the basis of saturated polyester resins and epoxy resin, specially selected according to their good chemical resistance and the resistance to discolouring (becoming yellowish) in the stoving process.
• Colour shade: according to RAL-card or according to the sample.
• Packaging: 25 kg cartons or big-bags of 500 kg.

Powder properties:

• Density (DIN 55 990/3): 1,2 to 1,7 g/cm3, depending upon the shade.
• Yield: 9,8 to 13,8 m2/kg at coat thickness of 60 µm, depending on the shade.
• Granulation (DIN 55 990/2, vacuum sieve): remainings at the 40 µm sieve……40-55 %.
• Method of application:  traditional CORONA procedure, negative voltage 30-100 kV, possible supply of powder adequate for TRIBO system of application.
• Stoving conditions: 190 °C/10 min, object temperature for matt, semi-matt and semi-gloss quality, and 180 °C/10 min for E/P-04-1-xxxxx.
• Storage time: 12 months at the temperature below 25 °C.

Mechanical and technological features of the Epoxy/Polyester Ekolak:

To determine its mechanical properties the Ekolak was applied to the 0,6 mm thick cold-rolled metal sheet degreased with acetone, and stoved in the oven at the temperature of 190 °C for 10 min, i.e. it was submitted to the conditions, required for the particular type of the Ekolak.

• Coat thickness: 55-80 µm
• Gloss (DIN 67 530, ISO 2813): 10-90% at the angle of 60°
• Hardness on Bucholz scale (DIN 53 153): minimum 91
• T-bend: minimum T3-OK/OK
• Impact test (DIN 55 669): direct: minimum 50 cm x kg
  indirect: minimum 50 cm x kg
• Adhesion (DIN 53 151): Gt 0

Chemical resistance and resistance to household stains:

Plates with applied Ekolak coating were exposed to the reactive agent for 48 hours, then cleaned. The surface of the coating was scrutinized according to the modifications.