COMAX® COIL-COATING LINE
CUSTOM PAINTING OF COMAX ROOFS®

  

Possibility of producing non-standard colours derived from RAL
in quantities from 400 m
², in all finishes.


SURFACE TREATMENTS OF COMAX® SHEET METAL COVERINGS

COMAX ROOFS® use aluminium or steel metal coils determinated for painting and production of roofing with declared properties, from leading European suppliers such as Voest Alpine, Tata Steel or ArcelorMittal.

The protective organic coat is applied by the COIL-COATING technology according to the requirements of ECCA, the association of leading manufacturers of pre-painted sheet metal, based in Brussels.

The COIL-COATING process consists of rolling a special organic coat on a unwound/unrolled steel or aluminum strip of sheet metal using a system of rollers, followed by hardening in furnaces at a temperature of up to 240°C, which guarantees an uniform and even coating over the entire surface of the strip and gives the sheet metal unique functional and aesthetic properties for use in the most demanding conditions.

In addition to organic paints delivered from top European manufacturers such as Salchi Metalcoat or Beckers, COMAX® has its own modern tinting lines. In the laboratories, our expert staff mix up to 600 different shades of colours a year.


SURFACE TREATMENT OPTIONS (EXAMPLE FOR SHADE 7016 - ANTHRACITE)

TYPES OF COATINGS


SP HD (High Durability) - UV resistance, higher corrosion resistance and flexibility, higher resistance to weathering than SP

SP TEXT - textured / structured surface, higher durability than SP HD

PVDF - high UV resistance, high chemical resistance Used for building elements in environments with higher UV load or in industrial environments (chemical resistance)

PUR / PA - excellent resistance to mechanical damage due to the structural surface.

WE MIX UP TO 600 SHADES OF COLOURS IN THE LABORATORY ANNUALLY 

LABORATORY AND COLOR MIXER
OF METAL TRADE COMAX®

In 2015, METAL TRADE COMAX® built new modern laboratories for development and extensive testing. The state-of-the-art equipment allows us to maintain the highest quality of pre-painted material for the production of COMAX® metal roofing.

In the laboratory for development and production of paints, paints based on polyesters and polyurethanes are developed and formulated. In the laboratory, with the help of a metallographic microscope, it is possible to monitor possible defects on the pre-painted material and reveal their cause. In adition, the input material is tested here, both the sheet metal using a blasting device and the paint. We verify the declared values, such as viscosity, weight content of non-volatile substances, colour deviation of the paint film, its gloss, hardness and flexibility. Thanks to the laboratory laminator, we can also test PVC and PET foils in the laboratory and their adhesion during the excavation test.

Our laboratory for monitoring the resistance of the painted material to external conditions is equipped with devices for simulating solar radiation with the possibility of water condensation (QUV and Q-Sun), devices for testing salt spray (Q-FOG) and the effect of condensation on the painted surface (QCT). These tests simulate an increased corrosion load in the environment, but samples are also tested here under real outdoor conditions - thanks to this extensive testing, it is possible to monitor and maintain the high quality of the painted material.

Accredited Testing Centres 

In addition to accelerated tests performed in our own laboratories, we test our painted sheet metal in international testing centres. In accordance with the prescribed standards, we use the maritime areas of accredited laboratories in Lisbon/Portugal for outdoor exposure 45 ° S and Hoek van Holland/Netherlands for outdoor exposure 5 ° S and 90 ° N.

This year we completed the exposure tests according to EN 13523-19 (Continuously painted metal strips - Test methods - Part 19: Sample design and test method for atmospheric exposure). Samples for testing were selected to represent both Aluminium and Steel and all types of coating systems, incl. lamination. We passed all prescribed tests.

Prescribed tests that are performed on the samples are listed here: 

For this year, we are testing not only pre-painted sheet metal, but also COMAX roofing, specifically: COMAX TR18, TR35, Tail, KLIK 25, FALC and BoCo, plus connecting material: screw 4.8 x 35 Stainless steel 7016, screw 4.8 x 35 Bimetal 7016, screw 4.8 x 35 Galvanized coat 8017, BOCO suffix, knurled nails Stainless steel, KLIK screw Galvanized, KLIK screw Stainless steel, fixed fixture FALC and the FALC sliding suffix.

The standard testing period is 2 years. We plan to extend the exposure period to 5 and 10 years.

OUR CUSTOMERS TRUST US

Significant European customers such as Kingspan, Hoesch, Trimo or Brucha have relied on the quality of COMAX® pre-painted products for many years and bring us valuable feedback from their successful Roofing, Cladding and Industry implementations around the world.