Guidance Document on Spray-on Polyurethane/Polyurea-Based Lining Applications Containing Isocyanates 

The Center for the Polyurethanes Industry (CPI) prepared this guidance document to provide information to professionals concerning important health and safety aspects when working with isocyanates during spray-on lining applications. Although isocyanates based on MDI (diphenyl methane diisocyanate) and HDI (hexamethylene diisocyanate) commonly are used in truck bed and other types of lining systems, it is not the only material in the system that may be potentially harmful to your health; therefore, it is important to read all the information contained in your supplier’s Safety Data Sheets or SDSs (formally known as Material Safety Data Sheets or MSDSs) for the particular spray-on lining system that you are using. SDSs are the primary sources of extensive and specific information on isocyanates as well as on other spray-on lining system ingredients. 

This guidance document is intended to help spray-on lining companies, such as truck bed liner companies, educate its workers about isocyanates and appropriate worker protection related to isocyanates. For supporting information, a complimentary video is available on CPI’s website for additional information about working safely with isocyanates-based spray-on linings. Neither CPI nor its member companies are responsible for worker protection, or worker protection programs, for spray-on lining companies.

American Chemistry Council

The American Chemistry Council (ACC) represents the leading companies engaged in the multibillion-dollar business of chemistry. ACC members apply the science of chemistry to make innovative products, technologies and services that make people's lives better, healthier and safer. ACC is committed to improved environmental, health, safety and security performance through Responsible Care®; common sense advocacy addressing major public policy issues; and health and environmental research and product testing. ACC members and chemistry companies are among the largest investors in research and development, and are advancing products, processes and technologies to address climate change, enhance air and water quality, and progress toward a more sustainable, circular economy.

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