Coat It!
PODCAST | What a One-Pass Powder Topcoat Test Revealed
Need to Know
- AGC Chemicals Americas evaluated FEVE and super-durable polyester resins combined in a single extrusion pass.
- The co-extruded coating passed a 3/8-inch mandrel bend test; the polyester control showed cracking.
- The researchers discuss gloss retention, the extrusion conditions needed to process both resins and ongoing natural weathering work.
Powder coating formulators can combine resin chemistries by extruding them separately and blending the finished powders. What changes when the resins enter the same extrusion pass?
In this episode of PCI’s Coat It!, Noelle Smith and Connie Przeslawski of AGC Chemicals Americas discuss their work with FEVE and super-durable polyester in a pigmented powder topcoat. Smith explains why the team investigated single-pass co-extrusion, what each resin contributes and why a shared processing window matters.
The conversation moves from manufacturing to performance. The researchers discuss a flexibility result that stood out against the polyester control, along with adhesion, appearance and gloss retention during accelerated weathering. Przeslawski offers a useful analogy for why uniform distribution matters throughout a powder coating.
Smith also describes where the approach may be useful, including exterior architectural components, and what the team hopes to learn from continued natural exposure and future work with other pigments and resins. PCI’s October technical feature provides a closer look at the formulation, testing and results.
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