COIL COATING

  • Pre-painting or film-lamination of sheet metal
  • Protective foliation, crosswise or lengthwise cutting, embossing of coated sheet metal
  • Wide range of colours
  • Custom coating

METALLURGY

  • Production of alloys and master alloys of Aluminium and Copper
  • Recycling of non-ferrous metals based on Aluminium and Copper

STEEL SERVICE CENTRES

  • Processing of hot-dip galvanized, cold-rolled and aluminium sheets
  • Crosswise and lengthwise cutting of coils
  • Custom cutting

PROFILE CENTRES

  • Production of reinforcing window, plasterboard or welded profiles from hot-dip galvanized strips 

Střechy Comax

  • výroba profilů pro sekční vrata
  • výroba výztužných okenních, sádrokartonových a svařovaných profilů (jekly, trubky)
  • výroba speciálních profilů

    Standard colours

    Polyester (PES)
    PES - good corrosion resistance, very good adhesion
    PES HD (High Durability) - UV resistance, higher corrosion resistance as well as higher weather condition resistance than PES, greater flexibility
    PES TEXT - texture/structural surface, higher resistance than PES HD

    PUR, PUR/PA (polyurethane, polyurethane/polyamide)
    PUR/PA - excellent mechanical damage resistance due to structural surface (polyamide particles), high corrosion and UV-resistance

    PVDF (polyvinyl difluoride)
    High UV-resistance, high chemical resistance
    Application for construction elements in environments with higher UV-load or in the industrial environment (chemical resistance) 

     


    Non-standard colours

    Gravure printing
    PES HD-based sealer imitating for example the appearance of wood
    Possibility of outdoor application, total coat 25 µm

    Multiply systems
    Three-coat – polyester sealers using "clear coat" with total coat thickness of 40–50 µm
                        PVdF with "barrier coat" (RAL 5002), PVdF with clear coat (RAL 7002)
    Four-coat – PVdF with "barrier coat" (RAL 3000, RAL 5026)

     


    Coating material parameters

    Types of paints

    Thickness (µm) 

    Coating system Double-side coating Protective function (yrs) Corosion resistance
    Polyester HD 20 - 25 single/double-layer yes 10 RUV 3
    Polyester  50 40 - 50 double/three-layer yes 12 RUV 4
    Polyester TXT 25 - 35 double-layer yes 10 RUV 3
    PVdF 25 - 35 double/three-layer yes 15 RUV 4
    PUR 25 - 45 double/three-layer yes 15 RUV 4
    PUR/PA 25 - 55 double/three-layer no 20 RUV 4
    Back coat 3 - 15 white-grey colour (FeZn, suitable for PUR foam), green-gold colour (Al), pigment colour yes 1 RUV 2

     


    Protective properties of paints

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