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Metallized coatings
Wet painting systems are often based on alkyd resin, epoxy or polyurethane paints. As an alternative to paint, it is also possible to protect steel with a thin layer of pure aluminium, zinc or an alloy of metals. This is called metallizing, also referred to as thermal spraying, metal spraying or flame spraying. Another commonly used term is Thermally Sprayed Aluminium (TSA).
Wet paint
Wet painting systems comprise one or multiple layers of wet paint coating. The first layer is often a rust-proof primer coat, followed by one or several layers of coating, depending on the required level of protection. Wet painting systems also include special floor coatings that must be able to withstand heavy loads.
Types of corrosion protection
Protection against rust comprises two aspects: surface pre-treatment and the appliance of a protective coating that seals the surface. The pre-treatment technique, known as blasting, enhances the adhesion of the protective film. The protective film can consist of:
- one or more coating layers, the so-called ‘wet painting systems’
- a combination of a thin layer of metal coating, usually aluminium or zinc and a sealing topcoat. This process is called metallizing.
- an epoxy passive fire protection coating.
Tailored advice
Every type of corrosion protection and pre-treatment procedure has different qualities and advantages. We will be happy to help you decide on the best option.
Passive fire protection
Excessive heat resulting from fire causes damage to the steel structure of buildings and installations such as oil rigs. The construction can no longer bear the weight and will eventually collapse. To protect steel structures against these damaging effects, passive fire protection coatings has been developed.