Industrial Painting – Painting Specification
COMMI carries out industrial painting on structures, steel fabrications, piping, components and other metal parts in accordance with the coating systems and technical specifications of each project.
Application is carried out in dedicated areas, with equipment selected according to the product, the protective system and the characteristics of the component or structure.
Application of Coating Systems
Coating systems are applied in accordance with the sequence, thicknesses and conditions specified in the Painting Specification, the project technical documentation and the product data sheets.
Depending on the specified system, primers, intermediate coats, topcoats and multi-coat systems may be applied.
From a single primer coat to multi-coat systems, application follows the sequence and overcoating intervals specified in the applicable technical documentation.
Preparation of Coating Materials
Before application, the products specified for the coating system, their documentation and the preparation parameters indicated by the manufacturer are checked.
For multi-component products, proportioning and mixing are carried out according to the ratios specified in the applicable technical documentation.
Application Technologies
COMMI operates Airless and Plural Component (bi-mix) application systems, as well as Air-mix and electrostatic application, for different types of industrial coatings.
The application technology is selected according to the characteristics of the product, the specified system and the project requirements.
Coatings for Different Protection Requirements
Depending on the Painting Specification, COMMI applies systems that may include:
Zinc-rich primers
Organic and inorganic
Epoxy
Polyurethane
Epoxy-acrylic
Polysiloxane
Alkyd
Silicone
Multi-coat and high-build systems
Intumescent coatings
Coating Products and Systems
COMMI uses products from leading international manufacturers of industrial coatings, selected according to the Painting Specification, the characteristics of the component or structure and the project requirements.
Carboline / APSA
Hempel
Jotun
AkzoNobel / International
PPG / Sigma Coatings
Application and Inspection of the Coating System
Inspections accompany the different stages of the coating process and are carried out in accordance with the requirements of the Painting Specification, the technical documentation and the inspection plan applicable to each project.
During application, the specified parameters are checked, from ambient conditions and product preparation to the applied film thickness.
Inspection activities are supported by in-house FROSIO Level III and AMPP Senior Certified Coatings Inspector expertise, in accordance with the requirements applicable to each project.
01
Ambient Conditions
Air and surface temperature, relative humidity and dew point.
ISO 8502-4
02
Mixing Ratios
Verification of component proportions in accordance with the product manufacturer’s requirements.
03
WFT — Wet Film Thickness
Wet film thickness check during application of each coat.
ISO 2808
04
DFT — Dry Film Thickness
Check of the applied coating thickness against the specified requirements.
ISO 19840
Depending on the system applied and the project requirements, further checks may be specified, including Holiday/Pinhole Test, adhesion tests and final visual inspection of the coating.
Facilities and Production Capacity
5
Painting Booths
4,800 m²
Covered Production Area
AIRLESS
Application Systems
PLURAL COMPONENT
Application Systems
Coating Is Part of the Protection System
The choice of products, thicknesses and application sequence depends on the anti-corrosion system specified for each project.
Surface preparation, application and inspection are therefore managed as integrated stages of the same protection process.
