Volume 43, Issue 7 - July 2008
the Aluminum Citings
What’s in a Name?
The first issue that comes to mind is the use of the term “Kynar®” when referring to liquid architectural paints. It seems that every time we have a customer refer to a painted aluminum product in this industry, they refer to the paint as either Kynar or powder coat. The term Kynar (or more accurately: Kynar 500) is actually a registered trademark of Arkema Inc., which produces industrial chemicals. Likewise, you may have also heard the word Hylar® (or more accurately Hylar 5000). Hylar 5000 is a registered trademark of fluorinated products manufacturer Solvay Solexis. It is much the same as referring to a tissue as a Kleenex®, a soda as a Coke®, or a copy as a Xerox®. The branding of the product is so substantial, that the line between a description and a trade name is blurred. These paints should be referred to as polyvinylidene fluoride (PVDF) coatings, though most should know what you mean when you say Kynar.
Within the major PVDF coatings there are trade names as well. PPG’s PVDF paints are either Duranar or Sunstorm. Duranar is PPG’s 2-coat paint, Duranar XL is a 3-coat paint and Duranar XLTS is a 3-coat textured finish. Sunstorm refers to PPG’s 2-coat mica-flaked metallic paint. Valpsar also has proprietary trade names: Fluropon is a 2-coat paint, Fluropon Classic is a 3-coat metallic or mica flake, Flurodize and Fluropon Classic II are 2-coat metallic or mica flake, and Fluropon Premiere is a 3-coat for bright colors. Acroflour and Acrodize are 50 percent PVDFs. Acrodize is the metallic or mica coating. Trinar is Akzo Nobel’s 2-coat PVDF and Tri-Escent is its 2-coat metallic or mica flake coating.
Powder Coating Comes into Play
It may seem very technical, but it is important to understand the different AAMA 2605 coatings that are available. As more and more projects need LEED credits, using a powder-coated product may someday qualify you for credits. It is important to know the differences among the trade names, especially when trying to meet a specification. Contact your metal finisher for further clarification.
John B. McClatchey Jr. is an account manager and third generation owner of Southern Aluminum Finishing Co. and SAF Metal Fabrication in Atlanta. Mr. McClatchey’s opinions are solely his own and not necessarily those of this magazine.