Powder coating is a dry film process, using finely ground particles of pigment and resin which are electrostatically charged and sprayed onto electrically grounded parts to be coated. The charged powder particles adhere to the parts and are held there until melted and fused into a uniformly flowing coating in a cure oven.  Before coating, the parts must be pretreated similar to liquid coated parts.

Powder coat paint such as PPG’s Duranar powder coat with 70% of the resin system being fluoropolymer base resins offer good choices for high-performance AAMA2605 powder coat. The primary component of powder coat is referred to as the resin. The type of powder coat system comes from the resin system. The powder coating formulation is much like a liquid coating except that most of the components are in solid, melt processable form. The exact composition of a particular powder coating is often complex and proprietary. In general most powder paints contain resins, pigments, fillers and additives.


Resins are the key component of powder coatings. The range of powder coat resins used have increased to meet the demands of the architectural market sector. Resin systems include: Fluropolymer, Polyester, Super Durable Polyesters, Urethane, Epoxy, Acrylic, and Nylon.


Pigments are the material added to the paint to give it color or to enhance certain physical properties of the coating. The selection of pigments is done on the basis of physical needs, durability, gloss, color fastness and chemical exposure. Pigments are both naturally occurring as well as synthetic. Typically solid particulate materials such as titanium dioxide or carbon black.


Used to reduce cost of the coating formulation and to improve specific properties such as flow, surface texture, lubricity, etc. Common fillers include barytes, calcite, mica, talc, whiting and wollastonite.


The particle size is important to the performance and appearance of the coating. The size of the powder particle can have an influence on the behavior of the material in the painting process and the final film characteristics.


The particle size is important to the performance and appearance of the coating. The size of the powder particle can have an influence on the behavior of the material in the painting process and the final film characteristics.

Strengths of Powder Coat

  • Environmentally friendly
  • Hardness and abrasion resistance
  • Vast array of color gloss and texture options
  • Paint protects and maintains the structural integrity of the aluminum

limitations of Powder Coat

  • Warranty – generally more limited and restrictive than liquid high-performance
    fluoropolymer coatings
  • Metallic Coating – cannot hold as much metallic flake content
  • Touch-up and field repair
  • Small custom color jobs are not cost effective due to minimum batch size
  • No in-house blending of powder coat. Longer lead time for samples and color


The length of powder coat warranties, and their warranted coverage, vary greatly depending on the supplier and type of powder coat.

Due to varying coverage, job specific powder coat warranties would be issued directly from the powder coat manufacturer rather than from Linetec. Any warranty must be requested, and approved by the powder manufacturer, prior to the order being painted.

voc free

Powder coatings are electrostatically applied, dry coatings. Powder coatings contain no solvents, and the process emits negligible, if any, volatile organic compounds (VOC) during application.

high-performance kynar powder coatings

The powder coat industry has made steady advances in technology to reach architectural performance requirements.

Many powders are available that meet AAMA 2604 and AAMA 2605 requirements, there are also Kynar 500 based powders that have excellent performance.

AAMA Verified Component Licensee

American Architectural Manufacturers Association, a material-neutral organization, is the source of performance standards for the fenestration professionals of window, door, skylight, curtain wall and storefront manufacturing companies.


As your Single Source Solution we offer custom options and specialty finishes such as Wood Grain Finishes, Copper Anodize, Spattercoat and textured Terra Cotta Coatings.


Linetec has earned a long-standing reputation as a leader in environmentally-conscious practices and finishing options. For more than a decade, environmental responsibility has been written into our core values.


Our technical experts at Linetec provide valuable industry education of high-performance architectural finishes to architects, engineers, specifiers and manufacturers.

Photo credits: H Window Company