Knotwood – CLWS & Chemistry Integration for Vertical & Horizontal Lines

Prior to engaging Ryonex, Knotwood was operating a system with high water usage, expensive RO unit rentals, and less efficient chemical dosing. Wastewater discharge posed a potential environmental and compliance risk. Additionally, inconsistency in coating weights and the need for constant staff oversight of wastewater systems presented operational inefficiencies. The client required a solution that could improve sustainability, reduce operating costs, and streamline their pre-treatment process—without compromising on coating performance.

Ryonex implemented a full CLWS skid and Acid Neutralisation System to transition Knotwood’s pre-treatment process to 100% closed loop, eliminating wastewater discharge to sewer. In tandem, we supplied a low-foam acid etch (Alucleen SS) and a Titanium-based Non-Chrome Conversion coating, which provides low conductivity and extended resin cycle life—improving overall system efficiency.

In January 2024, Knotwood was also upgraded to Henkel’s ECO FLEX chemical dosing system on Stages 1 and 5. This state-of-the-art technology provides more accurate dosing by testing the cascade-bound solution rather than the bath, leading to more consistent coating
weights and reduced chemical consumption.

By January 2025, after a full year of success with the vertical line, Knotwood extended the CLWS integration to the horizontal line. Ryonex continues to manage Knotwood’s CLWS, Chemistry, and Gema servicing onsite, creating a fully integrated and future-ready solution.