Zinc Phosphate Pretreatment Coatings and Wastewater
The customer has two facilities; each has a zinc phosphate immersion line for pretreating fasteners with unique corrosion resistance requirements. In addition corrosion resistance, the zinc phosphate crystals provide a surface structure that allows specialty coatings to adhere during the Dip and Spin paint process.
The customer was struggling to produce zinc phosphate coating weights meeting their customers’ requirements. In addition, the zinc tanks generated excessive sludge, consumed unnecessary chemistry and required frequent dump/ recharge. The customer was also having difficulty treating their wastewater and had excessive zinc in their discharge water that was not meeting daily limitations. Their current chemical supplier did not have the technical expertise to solve their problems.
The DuBois Solution
DuBois partnered with the customer to improve quality and restore environmental compliance. Our local technical team and application specialists audited one of their facility’s zinc line and continuous wastewater treatment system. DuBois team identified several chemical, equipment and process improvement opportunities that they agreed to pursue. We then coordinated the zinc pretreatment line start-up with a sampling program that allowed us to evaluate coating weights and optimize wastewater treatment effectiveness. The results met customer quality expectations and environmental compliance. After proving our capabilities in Iowa, the customer converted to the DuBois program at their second location.
Results and Benefits
Industry Events / 03.17.20
DuBois would like to sincerely thank the many industry organizations, event centers, hotels, sponsors, and partners for their incredible support working to reschedule events. DuBois will continue to support your efforts to bring quality events to our attendees and co-suppliers.
Training / 04.01.20
COVID-19 has dramatically changed the cleaning needs of our customers. DuBois will continue to put the safety our customers first. To simplify the process, DuBois has created Deep Cleaning Packages for Bleach and Quat sanitizing.
Recent Events / 03.23.21
DuBois Chemicals Quenching product line will now be available in Europe via the CIMCOOL organization. The European DuBois Quenching fluids product line includes oil-based Quenching Fluids and water-based Quenchants.
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