Coated surfaces ensure an excellent protection against corrosion and an individual decorative look. Before colour coating, perforated products must be treated appropriately to ensure the proper protection against corrosion. ProCoat has the facility to provide such processes as passivating, chemical treatment and blasting as per the specification.
Coatings
Powder Coating
Powder coating is the application of a dry paint in the form of a powder onto a surface using the principle of electrostatic charging. Powder may be a thermoplastic or a thermoset polymer. It is usually used to create a hard finish that is tougher than conventional paint. After the application process the paint is cured under heat to allow it to flow and form a “skin”.
Before applying the finish, the chosen part must either chemically or mechanically cleaned, removing dirt, oils, old, finishes, and oxidation. Poor surface preparation results in powder coating problems, which is because of impurities and poor adhesion between the powder and the metal base.
Rainbow uses several cleaning methods for powder coat prep depending on size, material, cleanliness, etc. Because we do so many metal finishes in house we have cleaning methods for any metal at our disposal. Our main method utilizes a phosphate coating followed by a quick dry in the oven for Ferrous or Iron based items or an etching, degreasing combination with chromate conversion process for aluminum.
In the application process, the polymer paint powder is applied from an air-powered gun. As the powder leaves the gun, it is given a positive electric charge while the part is grounded, giving it a negative charge. The powder flows and “sticks” to the grounded surface due to the attraction of the dissimilar charges. Where regular paint will over spray, causing waste and mess, powder wants to attach itself to the grounded part as much as it can. This causes a significant reduction in wastage
After the part is fully coated, it is placed in an oven at 200-210 C .
Time and temperature vary according to types of polymers and part mass.
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Idustries
Healthcare – Antibacterial
Special antibacterial powder coatings are available with Rainbow from internationally approved suppliers to provide a range of protective coatings specifically designed for the healthcare industry.
Application Areas
- Agricultural Equipment
- Window frames
- Garden furniture
- Radiators
- School furniture
- Heaters
- Shop shelves
- Hospital Beds
- Tools
- Cookers
- Antibacterial Effect against
- Staphylococcus aureus Methicillin-Resistant Strain (MRSA)
- Listeria monocytogenes
- Clostridium difficile
- Escherichia coli
- Staphylococcus aureus
- Klebsiella pneumonia
- Aspergillus niger
- Pseudomonas aeruginosa
- Penicillium purpurogenum
- Bacillus cereus
- Saccharmyces cerevisiae
- Salmonella enteriditis
Defense
Rainbow powder coating offers superior military powder coating in the UAE for various defense and security agencies. Military powder coating specification is very detailed in its requirement as the integrity of the coating makes a tremendous difference in field applications.
Proper mechanical and chemical surface preparation is of utmost importance prior to a singe or double coat depending on the part. At Rainbow we coat parts of military vehicles, armored vehicles, security trucks, crash guards, sockets, containers and enclosures. Each item is carefully inspected by our Q.C prior to coating to ensure the surface is ready to be coated on. We even import special powders, which offer higher durability for special projects.
Architectural
- Metal Doors & Frames
- Handrails and Railings
- Steel Structures,Roofing, Decking & Platforms
- Steel Furniture
- Stairs & Balconies
- Walkways
- Architectural Wrought Iron & Aluminum
- Fencing
- Aluminum Extrusions, windows and door systems
- Metal & Aluminum Fixtures
- Playground & Recreational Equipment
- Outdoor Seating
- Signage
industrial
Machinery, parts of large treatment plants, heavy duty nuts and bolts, racking systems and warehousing industries all depend on products coated by Rainbow for a lasting finish and to ensure their maintenance costs remain low as the need for rework and repeated coatings over the years are reduced.
Ral Colors
Shed from rainbow powder coating sight
Advantages of Powder Coating
- A thick layer can be applied in one process (50-200 micron).
- The finished result guarantees uniform surfaces.
- Suitable for outdoor use – good resistance to UV and corrosion
- A beautiful and uniform quality finish without paint runs
- Cost efficient – even on small batches or single items
- The electrostatic powder process ensures complete coverage – even on complex shapes
- Choice of finishes – clear, plain colour, metallic or textured
- Exceptional gloss and colour retention
- Robust mechanical and chemical performance – good at resisting abrasion, acids, solvents etc.
- Good electrical insulation capabilities
- Contains no Volatile Organic Compounds (VOC’s)
Staff And Management
Our coating applicators have been trained rigorously by the powder manufacturers and are disciplined in order to meet the high standards of quality and efficiency set by the company.
Our management team with an experience of over 30 years in the U.A.E and middle east is more than capable of committing to the promises we make.
Equipment
Our highly modernized ProCoat plant is equipped with the latest technology, tools & machinery which has given us an unparalleled edge over our competitors.
It Consists Of
- 8 chemical treatment tanks.
- 8 Electrostatic automated powder coating guns
- A fully enclosed stainless steel powder coating booth with auto filtration and recovery systems
- 50 meter overhead auto conveyor systems with cranes.
- 18 meter x 3 meter; high temperature curing oven with auto heating capacity up-to 300 Degrees
- Drying tanks
- Airless spray guns for wet coatings
- 30 meter fully automated Gietart Surface Treatment Line (Auto Blasting machine)
- Manual blasting machines.