celuka board
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In the unique Woodtrek Celluka process, special extrusion tooling allows for quick cooling of the outer surface of the Celluka PVC material, and an inward expansion of the cellular PVC, resulting in a product profile with a hard, smooth outer surface and a strong cellular core. Extruding the PVC around a torpedo-shaped device, and water-cooling, is what adds hardness in the Celluka process, and one reason we can confidently state Woodtrek PVC Celluka Board is the hardest surface in the industry.