2023
Waterborne soy-based protective coating
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Contributor/Checkoff:
United Soybean Board
Category:
Industrial
Keywords:
CoatingsIndustrial UsesOil
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Joseph Ferguson, Rust-Oleum Corporation
Co-Principal Investigators:
Project Code:
23-102-D-E-1-B
Contributing Organization (Checkoff):
United Soybean Board
$220,000
Institution Funded:
Rust-Oleum Corporation
$220,000
Brief Project Summary:
Solventborne protective coatings containing soya alkyds or soy oil modified urethanes are one of the best sellers in paint market. However, the market share of the solventborne products are shrinking due to stricter VOC regulations. We propose to develop a series of waterborne version of protective coatings with soy modified water based resins to meet the strict regulation and extend the market share. The biggest challenge is that the new formulations have to pass the anti-corrosion tests in direct to metal applications, and we will collaborate with Rust-Oleum R&D groups and marketing brand managers to evaluate and commercialize the new products. This project will benefit USB and U.S. soybean farmers with a large soy oil consumption in the next few years.
Information And Results
Project Summary

Project Objectives

Project Deliverables

Progress Of Work

Final Project Results

• This project evaluated the integration of soy-based alkyd dispersions into direct-to-metal (DTM) waterborne paints. Various formulations were tested for anti-corrosion performance and mechanical properties, leading to the selection of an alkyd dispersion with low VOC and high linoleic acid for further development. • The final water-based alkyd prototypes were compared to competitive brands and internal offerings. While the fast-dry paint with 100 g/L VOC showed good anti-corrosion performance and application characteristics, it requires improvements in long-term stability. • Due to higher costs compared to acrylics and company policy, development of waterborne soy-alkyd paints is paused. However, the WB soy-alkyd paint may still serve as a potential replacement for the internal Oxsol-containing primer and will be reconsidered soon.

Benefit To Soybean Farmers

• While the project timeline has concluded with no immediate plans for continuation, we will focus on initiatives to increase the use of soybean oil-based products in Rust-Oleum's offerings. The insights gained from the soybean-alkyd project have highlighted both the potential and limitations of these formulations. Moving forward, our efforts will concentrate on identifying alternative solutions and exploring new opportunities that align more closely with our performance and commercial goals, ultimately benefiting US soybean farmers.

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.