Laboratory trials and tests and process monitoring

ALU-COLOR Company Ltd. is certified by international company QUALICOAT and thus it is obliged to make required trials and tests and to monitor key implementation processes.

Key realization processes monitoring and measurement

1) Deoxidation:

  • temperature measurement – constant monitoring
  • concentration measurement – min. once a day
  • deoxidation ability measurement – min. twice a day
  • degreasing ability – every product

2) DEMI water

  • conductivity – min. once a day

3) Passivation:

  • temperature measurement - constant monitoring
  • concentration measurement – minimally once a day
  • conductivity measurement – minimally once a day

4) Coating:

  • contactless measurement of thickness of colour by ultrasound

5) Colour stoving:

  • temperature measurement – constant monitoring (4 sensors in each furnace)
  • surface temperature measurement of stoved product (firing curve) – minimally once a day and in case of a new product always before the start of production

6) Control:

  • gloss measurement according to ČSN EN ISO 2813 – every stoved batch
  • thickness measurement according to ČSN EN ISO 2360 – every piece (the number of measurements depends on the product)
  • grid test – according to ČSN EN ISO 2409 – depends on the customer’s wish

Laboratory trials and tests

According to standard QUALICOAT the Company ALU-COLOR Ltd. Is required to produce a test sample minimally once a shift and in every order over 80 m2. On these samples that go through the realization process together with the order are carried out lab tests.

  1. thickness measurement - ČSN EN ISO 2360,
  2. gloss measurement - ČSN EN ISO 2813,
  3. grip test - ČSN EN ISO 2409,
  4. hardness measurement (Buchholz) - ČSN EN ISO 2815
  5. elasticity measurement (Erichsen) - ČSN EN ISO 1520,
  6. shock resistance measurement – ČSN EN ISO 6272,
  7. resistance to bending on cylindrical mandrel measurement – ČSN EN ISO 1519.

According to standard QUALICOAT the company ALU-COLOR Ltd. is required to make a test profile on which the tests are carried out.

  1. accelerated anticorrosive test (Machu test)
  2. boiling test
  3. polymerisation test (Methyl-Ethyl-Ketone)

Trials and tests results, records of processes monitoring and test samples with protocols have been available for customers since 1999.

Laboratory trials and test are carried out also for customers who varnish also in other paint shops.

Note: we aren’t authorized testing laboratory.

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