Surface Treatments PDF Print E-mail
AFGO Coils can supply several different protective coatings to your new coils to slow down or eliminate the air-side corrosive condition.

PRE-COATED
AFGO Mechanical coils can produce coils with pre-coated fin stock.  Generally, coated fin stock is corrosion resistant (salt spray) and provides decorative features.  Types of coated fin stock include silicone polyester, tin and hydrophilic.

IRIDITE
Iridite is a protective chromate conversion film (yellow appearance) used for corrosion resistance.  Iridite is also a good primer for painting.

TIN PLATE
Tin plating is similar to nickel plating and is used for corrosion resistance.  Is has a soft, dull finish with a less dense deposit than nickel.

HOT-DIP GALVANIZED
Hot-dip galvanized is a zinc cool coating that is resistant to corrosion from food acids.

HERSITE
Heresite is a baked phenolic coating that can withstand exposure to many corrosive and chemical fumes.  This coating has a maximum temperature resistance of 400F.

ACRYLIC
Acrylic is an aluminum fin coil coating that is resistant to organic/inorganic acids (less than 10% concentrate), alkalies, salts (less than 20% concentrate) and many solvents.  This coating is particularly good in acidic or caustic environments (i.e. food acids).

ELECTROFIN
ElectroFin is a dip coating process that guarantees edge coverage, uniform thickness, and adhesion to metallic surfaces, including aluminum, copper, and steel (galvanized and stainless).  This coating is resistant to fumes containing acids, alkalies, salts, sulfates, alcohols, and other solvents.

EPOXY POWDER COATING
Epoxy powder coating can be applied to steel, copper, galvanized steel and aluminum.  It is mostly used for aesthetic purposes, as it can be applied in any color.  This coating does have some corrosion resistance that is dependant on the particular brand of epoxy powder being used.

ELECTROPOLISH
Stainless steel can be electropolished, or smoothed, to improve corrosion resistance.  This process brings the chromium, already present in the stainless steel, to the surface of the material.  Unlike a plating process, an electropolish surface is permanent.

NICKEL PLATE
Nickel plating can be applied through an electrostatic (does not guarantee uniformity throughout coil) or electro-less (guarantees uniformity) process and is resistant to acids, alkalies, salts, seawater, and chlorides.  Nickel plating is more wear-resistant than tin plating and has a bright, shiny appearance
 
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