What Is a PVDF Kynar 500® Finish?
A plain-language guide to one of the best-known high-performance finishes for architectural metal roofing—including what the name means, how the coating protects colour, and what Ontario homeowners should confirm before choosing a roof.
PVDF and Kynar 500® Are Related, but They Are Not Identical Terms
“PVDF,” “Kynar,” and “Kynar 500” are often used as if they mean any premium metal-roof paint. That shorthand can hide important differences.
PVDF is the resin chemistry. It is valued for strong carbon-fluorine bonds that help the cured coating tolerate ultraviolet exposure and long-term outdoor weathering. Kynar 500® is a specific branded PVDF resin manufactured by Arkema. Coating manufacturers formulate finished paint systems using that resin together with pigments, solvents and other components, then licensed coaters apply those systems to prepared metal in controlled factory conditions.
This is why the most accurate wording is usually “a coating made with Kynar 500® PVDF resin” rather than simply calling the roof itself “Kynar.” Other PVDF resin brands and coating-system trade names also exist. The panel manufacturer’s technical literature should identify the actual coating specification supplied for the selected profile and colour.
Who Actually Makes Kynar 500® Resin-Based Coatings?
Arkema makes Kynar 500® PVDF resin, but Arkema does not manufacture the finished architectural coatings sold under brands such as Fluropon® and Duranar®.
Arkema uses a licensing program intended to maintain formulation and quality consistency. Its current Americas licensee directory identifies The Sherwin-Williams Company and PPG Industries, Inc. as officially licensed manufacturers of coatings made with Kynar 500® PVDF resin. Those coating manufacturers combine PVDF base resin with their own resin technology, pigments and complete coating formulations. Coil coaters then apply and thermally cure the specified coating onto metal coil under factory-controlled conditions. A roofing manufacturer purchases coated coil and roll-forms it into panels or shingles.
| Company or Brand | Role | What Homeowners Should Understand |
|---|---|---|
| Arkema / Kynar 500® | Arkema manufactures the branded PVDF resin and licenses qualifying coating manufacturers. | Kynar 500® names the resin technology. Arkema states that it does not manufacture the finished Kynar 500® resin-based paint. |
| Sherwin-Williams / Fluropon® | Sherwin-Williams manufactures Fluropon® architectural coil and extrusion coatings based on Kynar 500® PVDF resin. | Fluropon® is the finished coating family; Kynar 500® is the PVDF resin used in the qualifying formulation. |
| PPG / Duranar® | PPG manufactures Duranar® high-performance fluoropolymer coil and extrusion coating systems. PPG states that Duranar® formulations combine proprietary PPG technology with Kynar 500® or another qualifying PVDF resin, depending on the system. | Duranar® is PPG’s coating brand. Confirm the exact Duranar® product and specification supplied for the roofing material. |
| Coil coater | Applies pretreatment, primer and coating to flat metal coil and cures it on a controlled production line. | The quality and compatibility of the complete applied system matter—not only the resin name. |
| Roofing manufacturer | Forms the prepainted coil into standing seam panels, roofing panels, trim or other components. | The roofing manufacturer supplies the product data, approved uses, colour offering and written warranty for the finished roofing product. |
| ROOFNOW™ installer | Helps select and professionally installs the specified roof system. | The installer does not manufacture Kynar 500® resin or the factory coating. ROOFNOW helps homeowners verify what is being supplied and how it fits the complete roof design. |
How to Choose a Kynar 500® Resin-Based Roof Colour
Arkema directs buyers seeking physical samples of Kynar 500® resin-based coatings to its licensed coating manufacturers, PPG and Sherwin-Williams. That is useful guidance because Kynar 500® is not one colour chart. The resin can be used in many qualified coating formulations, and the available colours depend on the coating manufacturer, coil coater, roofing manufacturer, metal substrate, panel profile and production program.
Solid Colours
Solid architectural colours provide a consistent visual field. Pigment chemistry still affects fade performance, so compare warranty limits for the exact selected colour.
Mica and Metallic Effects
Mica, pearlescent and metallic systems interact with light and viewing angle. They may require special layer constructions, directional installation and tighter batch coordination.
Solar-Reflective Colours
Some colours use infrared-reflective pigment technology. Ask for tested solar reflectance and thermal emittance values for the exact coated metal—not a value for a different colour.
Why a Physical Metal Sample Matters
A phone, computer monitor or printed brochure cannot reproduce the exact colour, gloss, texture or light response of coated metal. Review a current physical sample on the intended substrate, outdoors, in both direct sun and shade. For a large or highly visible roof, confirm whether all material will come from a coordinated production lot. Metallic and mica-effect colours can show direction or lot-to-lot variation more readily than many solid colours.
The small sample is for colour approval, not a complete prediction of how the roof will look. Panel ribs, seams, roof slope, building orientation, nearby trees and the sky’s reflection all affect the finished appearance.
Fluropon® Coatings Made With Kynar 500® PVDF Resin
According to Arkema’s official Sherwin-Williams licensee page, Sherwin-Williams manufactures Fluropon® architectural coil and extrusion coatings based on Kynar 500® PVDF resin. These are factory-applied architectural coating systems used where colour consistency, forming performance and long exterior durability are important.
Arkema identifies the following performance characteristics for the Fluropon® family:
- Superior resistance to ultraviolet rays to support long-term exterior colour performance.
- Outstanding colour retention and consistency across properly produced architectural components.
- Excellent overall adhesion as part of the properly prepared and cured coating system.
- Great flexibility and formability during manufacturing, when the coated coil is shaped into building products.
- High film integrity for protection against demanding exterior exposure.
Arkema also describes Fluropon® coating systems as providing protection against ultraviolet exposure, dirt and stains, chemicals, heat, humidity and corrosive salt spray. These are coating-family characteristics, not permission to use every Fluropon® product in every corrosive environment. The exact product data, substrate, pretreatment, primer, topcoat, exposure category and written warranty still control.
Duranar® Coatings and Kynar 500® PVDF Resin
PPG Industries, Inc. is an official Kynar 500® coating licensee in the Americas. PPG’s Duranar® family includes high-performance fluoropolymer coil and extrusion coatings used on architectural metal, including metal roofing and wall panels.
PPG states that its Duranar® coil coatings combine proprietary PPG resin and pigment technology with 70% fluoropolymer base resins. Its product information describes resistance to colour fade and long exterior exposure, plus solid, mica, metallic and cool-coating options. Product families identified by PPG include:
- Duranar® Solid Color: fluoropolymer coil coatings designed for colour and fade resistance in varied climates.
- Duranar® SUNSTORM®: mica-effect coatings that create a pearlescent or metalescent appearance.
- Duranar® XL: metallic systems with added clearcoat protection, including options intended for demanding seacoast and industrial exposure.
- Duranar® ULTRA-Cool®: coatings using solar-reflective technology for qualifying roof colours and energy-related specifications.
PPG reports that Duranar® technology was introduced in 1967 and that qualifying formulations use proprietary PPG resins and pigments in combination with Kynar 500® or other identified PVDF base resin. This detail matters: homeowners should verify the exact coating specification rather than assuming every product carrying a broad family name has the same layer count, pigment system, use case or warranty.
Factory Duranar® PVDF vs. Duranar® ADS Field Repair
Arkema’s PPG licensee page also highlights Duranar® ADS, a one-component, solvent-based, air-dry fluoropolymer system intended for properly prepared painted or bare aluminum and steel building components. PPG positions ADS for touch-up, repair and restoration of factory-applied coil and extrusion finishes. It is not the same application process a