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Green Seal's updated certification requirements restrict PFAS use across a broad product category

Global ecolabeling organization Green Seal has  it will stop certifying any paints, coatings, floor care products, adhesives, or degreasers that contain per- and polyfluoroalkyl substances (PFAS). The leading green product certification organization's updated PFAS standards follow on its move last year to stop certifying that contain PFAS. 

Green Seal considers its certification "one of the highest benchmarks for safety and environmental protection in the marketplace." Its certified products qualify toward points for both the LEED Low-Emitting Materials credit and the LEED v4.1 Materials Ingredient Optimization credit, so this change to its standards will have ripple effects across sustainable construction projects, in addition to the manufacturing of paints, coatings, and floor cleaning and polish products.

PFAS widely used in paints, coatings, and floor care products to improve performance

PFAS is a catchall term that includes thousands of different fluorinated chemistries used across a wide array of products and product types. Green Seal intends to prohibit all PFAS, which they describe as "approximately 12,000 chemicals in this class."

Manufacturers and users of paints, coatings, and floor care products hoping to maintain or secure Green Seal certification will be affected by this change, as this product category historically included PFAS to impart important performance attributes such as durability, stain resistance, and water repellency. Currently, as leveling and wetting agents.

Part of a growing trend toward restricting PFAS use

The announcement from Green Seal matches a growing trend across several U.S. states and the European Union in attempting to restrict PFAS broadly as a class or in specific product categories with known or historical PFAS use. However, unlike some state proposals, Green Seal's restriction does not say whether the prohibition is specific to intentionally added PFAS or applicable to threshold values. The health and environmental risk profile for the full proposed list of restricted PFAS and methods for detecting them at very low concentrations are still evolving. 

Certification that products do not contain any PFAS will require analytical testing — a considerable challenge given the complexity and range of matrices represented by the broad product category, the cost of testing, the very low concentrations at issue, and the general lack of accepted industry standard test methods for PFAS.