Epoxy powder coating
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Product Description
Corro-Coat EP series 9 is a series of powder coatings which includes products for both decorative and purely protective purposes. This epoxy powder coating is based on curing of the epoxy resin by dicyandiamide (DICY) or special phenol hardeners. None of these curing reactions result in volatile by-products, which facilitate high film thickness without weakness in the coating.
Application Areas
Corro-Coat EP is aimed at applications for internal use and for products which demand a high degree of surface hardness, wear and tear and resistance to solvents and chemicals. Epoxy based powder coatings are not recommended for outdoor use when color and gloss durability is required. Special products are available for protection of steel reinforcement bars, pipelines and heavy-duty foundry goods, for example, valves. Corro-Coat EP Series 9 can also be successfully applied to other ferrous and non-ferrous bases.
Functional Qualities
The excellent adhesion and corrosion prevention qualities of epoxy coating are well known. However, what distinguishes this particular coating is its supreme resistance to chemicals and solvents. Accordingly, Corro-Coat EP is particularly well suited for use in aggressive environments.
Epoxy coatings will develop a white layer (chalking) after a relatively short exposure to direct sunlight. This limits the use of epoxy powders in outdoor applications if and when appearance is paramount. Nonetheless, the protective qualities of the coating is not impaired provided that adequate coating thickness has been applied and correct metal pretreatment ensured. White and pale colors can turn yellow if over-cured and if continuously exposed to temperatures exceeding 90ºC.
Pre-Treatment
The general quality of powder coating systems is largely dependent on pre-treatment and the surface of the metal. Type and method of pre-treatment must relate to the finished product's definitive use.
Powder Application
Corro-Coat EP Series9 is suitable for use with all corona and friction charged spray equipment. The Corro-Coat EP formulation and particle size distribution results in excellent performance in electrostatic as well as friction-charged application equipment.