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Fan Application product application guide - …

Fan Application . FA/110-04R2. product Application guide A technical bulletin for engineers, contractors and students in the air movement and control industry. Performance Coatings for Ventilation Products Coatings are a very important consideration greenheck 's Permatector powder coating. Baked when meeting the requirements of a particular enamels are decorative coatings and are not included in Application . Coatings are primarily required because our relative resistance chart. of corrosive environments and/or for a decorative appearance. greenheck supplies an extensive range Performance Coatings of high quality coatings to meet the demands of all In the ever changing world of finishing, more and commercial and industrial applications ; the range more quality equipment manufacturers are turning offers a choice of either protective or decorative to powder coating as their primary finishing system. coatings for many products.

Greenheck Product Application Guide 4 ® Product Application No. FA/110-04R2 7. Industrial Epoxy (Powder) This high performing epoxy powder coating has excellent chemical resistance to a wide variety of

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Transcription of Fan Application product application guide - …

1 Fan Application . FA/110-04R2. product Application guide A technical bulletin for engineers, contractors and students in the air movement and control industry. Performance Coatings for Ventilation Products Coatings are a very important consideration greenheck 's Permatector powder coating. Baked when meeting the requirements of a particular enamels are decorative coatings and are not included in Application . Coatings are primarily required because our relative resistance chart. of corrosive environments and/or for a decorative appearance. greenheck supplies an extensive range Performance Coatings of high quality coatings to meet the demands of all In the ever changing world of finishing, more and commercial and industrial applications ; the range more quality equipment manufacturers are turning offers a choice of either protective or decorative to powder coating as their primary finishing system. coatings for many products.

2 There are many coating choices that provide a good Protective Coatings to excellent level of protection at an economical cost. greenheck has been applying coatings in-house Protective coatings are most widely used for since 1974. We recommend that you consider an corrosion control. They are used to provide long- in-house applied electrostatic powder coating term protection under a broad range of corrosive as your first choice and use liquid coatings when a conditions, extending from atmospheric exposure suitable powder coating is not available. to the most demanding chemical processing conditions. They can be either a powder or liquid epoxy finishes, for example, offer excellent coating. Protective coatings provide little or no mechanical and chemical resistance properties structural strength, yet they protect other materials when used on interior applications . This finish to preserve their strength and integrity.

3 Should be used where inherent toughness, corrosion resistance, flexibility, and adhesion are Decorative Coatings required. An epoxy finish has excellent moisture For projects where the exterior appearance is resistance qualities and can also be used on exterior important and additional chemical resistance is not applications where color, gloss, and appearance are required, customers can choose from standard or not required because epoxy tends to fade and chalk custom decorative colors. A decorative coating is in sunlight. (Chalking will only have minor affects on a baked enamel that is applied as liquid paint or the protective qualities.) The primary limitation of electrostatic powder . epoxy based coatings is its poor weathering. Baked enamel is available in a variety of colors and greenheck coatings are not limited to just powder . typically composed of polyester or alkyd-amino Traditionally, liquid coatings were widely used for resin systems.

4 They display excellent hardness industrial duty applications . Today, liquid coatings and resistance to marring and their flow and are still available for special applications but leveling properties are very good. Baked enamel are being replaced by equally suitable, but offers good color and gloss retention in exterior more economical and environmentally friendly, applications . Baked enamel has reasonably good to powder coatings. excellent chemical resistance properties, similar to . Box 410 Schofield, WI 54476 Fax Copyright 2008 greenheck Fan Corp. greenheck product Application guide powder Coating Another advantage of powder paint is that it is solvent free and highly protective of our powder coating is a dry finishing process, using environment. There are no Volatile Organic finely ground particles of pigment* (color) and Compounds (VOC's) to flash off and pollute the resins* (glue) that are electrostatically charged and atmosphere.

5 In addition, disposal of the solid waste sprayed onto a metal or alloy substrate to be coated. can be treated as a non-water soluble material that The coated component is electrically grounded poses few problems. There is virtually nothing in the neutral so that the charged powder particles whole process to adversely affect our environment. projected at them adhere to the metal part and are In addition, most powder coating over-spray that held there until melted and fused into a smooth does not adhere to the part can be retrieved and coating in the curing oven. The results are a high reused, virtually eliminating the waste commonly quality, continuous, uniform coating that is durable, found in liquid finishing processes. and has no porosity. With powder coatings, primers are not necessary and the sags, runs, or drips that Liquid Coating are typically noticed with a liquid coating are gone. Liquid coatings require multiple coats to bring mil The usual powders used in the ventilating industry thickness to vendor specification because there is are polyester, epoxy , and polyurethane.

6 A large amount of Volatile Organic Compounds *Pigment provides properties such as color, (VOC's) that must flash off as the paint dries corrosion inhibition, gloss control, sag resistance, between coats. The VOC's are the reducers that and film thickness. allow the solid material to flow onto the coated surface. Once the paint covers the surface, the VOC's *Resin is the component that binds the pigment together. evaporate allowing the paint to dry. Multiple coats As the resin cures, a dry film is formed. The pigment require extra labor, which in turn is an added cost. and resin together contain the film-forming solids of a cured paint film. Performance of a cured paint film Thinner mil coatings generally exhibit good depends heavily on the resin. Properties imparted by the chemical resistance and maintain excellent resin include curing time, hardness, flexibility, chemical mechanical properties in such areas as impact resistance, and abrasion resistance.

7 Some common resins resistance and flexibility. Thicker coatings exhibit are polyurethane, acrylic, and epoxy . higher abrasion resistance, but less ability to resist impact and remain flexible. Why powder Coatings? Coating Recommendation powder coatings are the best choice for most applications . powder coatings offer two major Identifying, selecting, and specifying the right advantages over most vendor-applied liquid coating for the corrosion protection you require is a coatings a superior finish because of its uniform complex and demanding process. The corrosion rate coverage and thickness and better pricing. for any Application depends to a large extent on the concentration of fumes, their temperature, and the powder coating pricing is often far lower than liquid amount of moisture associated with them. coating, because it may be applied in-house. The price of an in-house Application reflects reduced greenheck 's sales and engineering people can shipping costs ( product to and from an outside assist in the quoting process and recommend the vendor) and reduces the product 's lead time.

8 Most proper coating for an Application . However, in liquid coatings are applied by custom paint vendors order to complete the coating selection, you will and subjected to their vendor lead times and prices. need to know the following information about the Some liquid paints require 10 to 14 days to cure customer's job: completely. This drying time results in longer lead Specific chemicals involved times. greenheck has an in-house powder paint line. A. typical Application takes approximately 3-1/2 hours to Chemical concentration levels power wash, apply the coating, and cure the paint. These Temperatures to be handled in-house benefits alone outweigh the advantages of most Moisture levels (% to full immersion). liquid coatings. 2 . product Application No. FA/110-04R2. greenheck product Application guide Exposure duration (ranging from occasional 2. Perma-Z ( powder ). to continuous). Perma-Z combines greenheck 's Permatector.

9 Abrasive materials (size and quantity of the coating with a superior zinc-rich epoxy basecoat. This particles in airstream) protective coating system provides all the benefits What other coatings are being used on job of the Permatector coating but with double the total Decorative requirements. coat thickness for additional durability and protection from air and water. In addition to outstanding Key benefits of specifying a powder coating as an corrosion protection, the zinc-rich epoxy basecoat alternative to a liquid coating are: provides chemical protection to steel in the event powder coatings offer uniform coverage and that bare steel becomes exposed. thickness, durability, and high quality finish 3. Hi-Pro Polyester (Used in Lieu of Air Dry powder coated surfaces are more resistant to Heresite) ( powder ). chipping, scratching, fading, and wearing than Hi-Pro Polyester powder coating meets or exceeds other finishes the performance characteristics of Air Dry Heresite powder coating is a one-coat process applied over and Heresite Baked Phenolic.

10 It has been formulated a phosphatized surface. This system meets or for exterior durability, color and gloss retention. This exceeds the corrosion resistance of a comparable coating is resistant to salt water, chemical fumes liquid coating system. and moisture in more corrosive atmospheres. It has superior chemical resistance, excellent abrasion and The following are some of the most common reasons outdoor UV protection. to apply a protective coating: 4. Hi-Pro-Z (LabCoat ) ( powder ). Corrosion protection from acids and alkalis Hi-Pro-Z combines greenheck 's Hi-Pro Polyester Weather protection elements (rain and UV). coating with a superior zinc-rich epoxy basecoat that Abrasion and physical wear protection meets or exceeds the performance characteristics of Process contamination protection. Air Dry Heresite and Heresite Baked Phenolic. This protective coating system provides all the benefits Coating Descriptions of the Hi-Pro Polyester coating but with double the total coat thickness for additional durability 1.


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