RST Brands Review, Is RST Brands Non-Toxic?
Across 4 graded products, RST Brands averages Poor (30/100). On disclosure, the brand says nothing publicly about PFAS. None of its products grade Good or better yet. Grades are model-based estimates, not lab results.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Graded and flagged Poor and Bad, we’d swap these
RST Brands
Modular Outdoor Set of 2 Sunbrella Club Ottoman Cushion Covers
Sunbrella acrylic fabric with stain/water-resistant treatment
PFAS
Sunbrella's standard water-repellent coating formulations historically use fluorochemical…
VOC off-gassing from dyes and finishes
New acrylic outdoor fabrics may release volatile compounds during initial use or storage…
Sunbrella fabric likely contains PFAS-based water-repellent coating, brand silent on chemistry.
⚠Waterproof or stain-proof treatment
RST Brands
Outdoor Sunbrella Sofa Cushion Cover
Sunbrella solution-dyed acrylic with water-repellent coating treatment
PFAS
If water-repellent coating uses fluorine-free replacements (siloxanes, hydrocarbons)…
Formaldehyde / VOCs
water-repellent coating and UV-blocking treatments may contain formaldehyde resins.…
Microplastic shedding from acrylic fiber
Solution-dyed acrylic sheds microfibers when washed or weathered. Outdoor placement…
water-repellent coating-treated outdoor textile, PFAS content unknown, no disclosure.
⚠Waterproof or stain-proof treatment
RST Brands
Outdoor Sunbrella Sofa Cushion Cover RST Brands
Sunbrella acrylic fabric with water and stain repellent treatment
PFAS
Sunbrella's proprietary water-repellent coating system is not disclosed publicly.…
Acrylic fiber shedding and microfiber release
Solution-dyed acrylic fibers can shed microfibers during mechanical wear, rain, and wind…
Off-gassing of volatile organic compounds (VOCs)
New outdoor fabric covers may release trace VOCs from water-repellent coating finish…
Avoid. Sunbrella's water-repellent coating treatment likely contains PFAS, no disclosure.
⚠Waterproof or stain-proof treatment
RST Brands
Helmes Outdoor Sunbrella Seat Cushion Cover RST Brands Fabric
Sunbrella acrylic fabric with water-repellent coating treatment
PFAS
Sunbrella brand has historically used PFAS (such as Teflon-type coating or…
VOC off-gassing and odor
New acrylic and coated fabrics can emit volatile organic compounds (VOCs) during the…
Microplastic shedding
Sunbrella acrylic fibers can shed microplastics through wear, abrasion, and weathering…
Sunbrella historically uses PFAS-based water-repellent coating, verify before buying.
⚠Waterproof or stain-proof treatment
RST Brands and PFAS, common questions
- Does RST Brands have PFAS?
- We graded 4 RST Brands products, averaging Poor (30/100). None grade Good or better. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is RST Brands non-toxic?
- No RST Brands product we graded reaches Good. The best of them is RST Brands Modular Outdoor Set of 2 Sunbrella Club Ottoman Cushion Covers at 30/100.
- Which RST Brands products should I avoid?
- The lowest-graded RST Brands products we have scored are Helmes Outdoor Sunbrella Seat Cushion Cover RST Brands Fabric, Outdoor Sunbrella Sofa Cushion Cover RST Brands, RST Brands Outdoor Sunbrella Sofa Cushion Cover. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →