Does Williams Sonoma outdoor furniture cushion protectants have PFAS?
We graded 9 Williams Sonoma outdoor furniture cushion protectants products, averaging Good (55/100). 4 of them grade Good or better. Against the other 48 outdoor furniture cushion protectants brands we grade, where the middle brand sits at 35/100, Williams Sonoma is better than typical, scoring above 77% of them.
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.
Williams Sonoma outdoor furniture cushion protectants worth buying Good or better, best-graded first
Williams Sonoma
Santorini Side Chair Cushion
Polyester outdoor cushion cover (likely acrylic or polyester blend)
Azo dyes and color fastness
Polyester cushion covers are typically dyed with reactive or disperse dyes; azo dyes are…
Microplastic shedding
Polyester textiles shed microfibers during washing and weathering; a cushion cover is a…
Water repellency treatments and off-gassing
Williams Sonoma does not disclose whether the Santorini cover has been treated with…
Mold and mildew from moisture retention
Polyester absorbs and traps moisture more than solution-dyed acrylic. If cushions are…
Lower concern; typical outdoor cushion without known stain or water treatments.
⚠Starting grade for this product type
Williams Sonoma
Santa Barbara Teak Chair Cushion
Teak wood frame with outdoor cushion fabric
Flame retardants
Outdoor cushions often contain flame retardant treatments required by US flammability…
Water-repellent coating leachables (likely water-repellent coating or water-repellent coating treatments)
Traditional water-repellent coating finishes may contain Teflon-type coating-based or…
Volatile organic compounds (VOC) off-gassing from fabric treatment
New outdoor cushions commonly release VOCs from dyes, sizing agents, and water repellent…
Mold and mildew growth if moisture trapped in cushion core
Outdoor cushions in humid climates or with poor drainage can develop fungal growth, which…
Lower PFAS concern for teak; cushion coating details are unknown, ask Williams Sonoma.
⚠Starting grade for this product type
Williams Sonoma
Santa Barbara Dining Side Cushion
Polyester cushion cover, likely filled with polyurethane or polyester fibers
VOC off-gassing from polyurethane foam fill
New polyurethane foam may release VOCs (including toluene diisocyanate residuals) during…
Degradation and microparticle release under UV
Extended outdoor exposure without cover causes polyester fabric to break down…
Mold and bacterial growth in moist conditions
If left wet or in high humidity without drying, polyester/foam cushions can support mold…
Lower concern; standard dining cushion without identified PFAS triggers.
⚠Starting grade for this product type
Williams Sonoma
Calistoga Club Chair Cushion
Polyester outdoor cushion cover, likely solution-dyed; foam or fiberfill interior
Flame retardants
Williams Sonoma does not publicly disclose whether this cushion cover meets fire safety…
Volatile organic compound (VOC) off-gassing from foam or fiberfill
Polyurethane foam and polyfill interiors can off-gas formaldehyde or other VOCs…
Microfiber shedding from polyester
Outdoor polyester textiles may shed microfibers over time due to weathering and washing…
Mold and mildew growth if stored wet
Polyester itself resists mildew, but trapped moisture in foam or seams can harbor…
Lower PFAS concern, but contact Williams Sonoma for fiber and finish specifics.
⚠Starting grade for this product type
Graded and flagged Poor and Bad, we’d swap these
Williams Sonoma
Santa Barbara Club Chair Cushion
Upholstered cushion with unknown stain-resistant finish
PFAS
Unidentified water and oil repellent on cushion surface is consistent with PFAS-based…
Flame retardants
Outdoor synthetic cushions sometimes receive flame retardant treatment (brominated…
Synthetic fiber shedding and microfiber release
Outdoor polyester or acrylic cushions shed microfibers during use, especially in UV light…
Coating degradation and leaching
Stain-resistant finishes on outdoor cushions degrade over time when exposed to sun…
Avoid unless you can confirm the stain-resistant formula with Williams Sonoma.
⚠Starting grade for this product type
Williams Sonoma
Santa Barbara Dining Side Chair Cushion
Polyester/cotton blend with stain-resistant finish
PFAS
Outdoor furniture cushions commonly use fluorochemical finishes to achieve water and…
Microfiber shedding from polyester
Polyester fibers release microplastics during wear, washing, and UV degradation…
Coating degradation and leaching
Stain-resist coatings on outdoor textiles degrade over 2-5 years with sun, moisture, and…
Avoid until Williams Sonoma discloses the stain-resist coating or verifies PFAS-free.
⚠Starting grade for this product type
Williams Sonoma
Topanga Armchair Cushion
upholstery fabric with stain-resistant finish (likely PFAS-treated)
PFAS
Rejuvenation does not disclose the identity or fluorine content of the finish. Outdoor…
Microfiber shedding from base fabric
If the cushion is polyester or acrylic blend, mechanical wear (sitting, cleaning, UV…
Formaldehyde / VOCs
Outdoor fabrics often receive formaldehyde-based dye fixatives or wrinkle-resist…
Foam core degradation (if present)
If the cushion includes polyurethane foam filler, extended UV exposure and moisture can…
Skip unless the brand documents the fabric as explicitly PFAS-free.
⚠Starting grade for this product type
Williams Sonoma
Lyon Club Chair Cushion Standard Sunbrella Performance Canvas
Sunbrella Performance Canvas (acrylic-based fabric with water-repellent coating)
PFAS
Sunbrella's water-repellent coating technology almost certainly relies on PFAS compounds…
Microplastic shedding from acrylic fiber
Solution-dyed acrylic fibers are generally stable, but weathering, friction, or abrasive…
Degradation of water-repellent coating over time
Sunbrella's water-repellent coating finish typically requires periodic reapplication…
Sunbrella canvas likely contains PFAS-based water-repellent coating; Williams Sonoma shares no disclosure.
⚠Waterproof or stain-proof treatment
Williams Sonoma
Ton 14 Side Chair Cushion
Upholstered cushion; likely polyester or cotton blend with stain-resist finish
PFAS
Outdoor cushion stain treatments are predominantly PFAS-based in the industry unless…
Volatile organic compound (VOC) off-gassing from polyester
New polyester textiles, especially those treated with finishes, can emit VOCs in the…
Heavy metals
Polyester textiles can be dyed with azo compounds or dyes containing cadmium, cobalt, or…
Coating degradation and leaching over time
water-repellent coating coatings degrade under UV exposure and washing, potentially…
Higher concern. Stain-resist finish chemistry not disclosed.
⚠Waterproof or stain-proof treatment
Better outdoor furniture cushion protectants from other brands
Graded higher than the Williams Sonoma average of 55.
Acadia Outdoor 61in Sofa Cushion
Polyester cushion cover; likely acrylic or polyester-blend upholstery
PFAS
Limited concern
Volatile organic compounds (VOCs) from coating or dyes
Limited concern
Coating degradation and microplastic shedding
High concern
Mildew and bacterial growth if moisture trapped
Moderate concern
Lower PFAS concern likely, but West Elm discloses nothing.
⚠Starting grade for this product type
West Elm
Acadia Lounge Chair Cushion
Polyester upholstery cushion cover
Heavy metals
Limited concern
Formaldehyde / VOCs
Limited concern
Microplastic shedding from synthetic fibers
Limited concern
Lower concern cushion, but West Elm provides no PFAS transparency.
⚠Starting grade for this product type
West Elm
Westport Slim Outdoor 68in Sofa Cushion
Polyester/cotton blend cushion cover, no specified water or stain treatment
Formaldehyde / VOCs
Limited concern
Microplastic shedding and degradation
Limited concern
Mold and bacterial growth if waterlogged
High concern
Lower PFAS concern. Standard outdoor cushion with no reported treatments flagging risk.
⚠Starting grade for this product type
See every Williams Sonoma product we grade on the Williams Sonoma brand page, or the full outdoor furniture cushion protectants ranking.