Green Seal Launches Expanded Standard for Paints, Coatings, Stains and Finishes

Allows Certification to New Categories, Including Concrete Sealers and Floor Coatings

Washington, D.C., – Green Seal™, the nation’s first independent nonprofit certifier of sustainable products and services, has introduced a revised version of its GS-11 Standard that is expanded to cover most types of architectural coatings on the market today.

This new edition of GS-11, a compilation of the previous edition of GS-11 and the GS-47 Standard for Stains and Finishes, includes floor coatings, concrete and masonry sealers, and fire resistive coatings, in addition to the paints, primers, anti-corrosive coatings, and reflective coatings previously covered. Clear and transparent coatings are also included in the 24 product categories that are now eligible for certification.

The new Green Seal standard offers greater flexibility for the assessment of VOCS and aligns with VOC limits set by the current California Air Resources Board. The standard also addresses:

  • Stains and finishes for wood and metal, previously covered by the GS-47 Standard
  • Updates for clarity on certain criteria for chemical ingredients, reflecting the current market for leadership products

GS-11 ensures that certified paints, coatings, stains, and sealers deliver satisfactory performance. Each product is tested for performance parameters applicable to the intended use of that product.

With the rapid advances in formulation technology Green Seal redesigned GS-11 to promote the creation of safer coatings by restricting a comprehensive list of harmful chemicals, including heavy metals, certain phthalates, formaldehyde donors, carcinogens, mutagens, reproductive toxins, hazardous air pollutants, and ozone depleting compounds. Certain exceptions are made for titanium dioxide, carbon black, crystalline silica, and PCBTF because they are necessary for acceptable performance and feasible alternatives are currently lacking.

Green Seal’s certification process involves an in-depth review of product data and manufacturing procedures, including an on-site audit of manufacturing facilities. Periodic monitoring is required to maintain certification.

To download the revised GS-11 standard or apply for Green Seal certification, visit: www.greenseal.org/gs11

Featured

  • New City School

    Turning Crisis into Opportunity: Transforming New City School

    When New City School in St. Louis suffered catastrophic flood damage in July 2022, the event could have marked a serious setback for the 100-year-old institution. Instead, it became a forward-looking opportunity.

  • Harvard Announces Replacement Facility for Native American Program

    Harvard University in Cambridge, Mass., recently announced that construction will begin this spring on a new home for its Native American Program, according to university news. The 6,500-square-foot, all-electric building will stand three stories and serve as the central hub for the Harvard University Native American Program (HUNAP).

  • How a Portable Sink Helped an Art Classroom Run More Smoothly

    Classroom design decisions can have outsized effects on instructional time and safety at schools juggling mismatched infrastructure, strict budgets, and crowded schedules — particularly in the arts. Between spilled paint and dirty brushes, art classes run smoother with a sink in the studio. But many schools don’t have a sink in every art classroom.

  • Spaces4Learning Launches 2026 Education Design Showcase Awards

    Spaces4Learning has opened submissions for the 2026 Education Design Showcase! The awards program launched in 1999 with the goal of celebrating innovative, practical solutions in the planning, design, and construction of K–12 and higher-education facilities. EDS recognizes new developments that help achieve optimal learning environments, as well as the architecture firms that brought the ideas to life.