Atsko · Outdoor Furniture Cushion Protectants
ATSKO Water-Guard Extreme Waterproofing Spray
Wait for better formula transparency. Waterproofing sprays often contain PFAS.
Atsko Water-Guard is a waterproof furniture spray with undisclosed active ingredients. Waterproofing sprays commonly use PFAS, and no transparency is offered.
The better-graded swap
Frontgate
Crew Stripe Indoor/Outdoor Pillow - Seaglass, 20" x 20" Square, 20" x 20" Square Spa Tassels - Frontgate
75/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
proprietary waterproofing spray formulation, unspecified
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
Vague safety claims only
Uses vague language ("eco-friendly", "clean") without a specific PFAS statement.
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
Volatile Organic Compounds (VOCs) and solvent emissions
Spray-applied waterproofing formulations typically contain hydrocarbon or solvent carriers that off-gas during application and curing. Without published VOC limits or solvent identification, inhalation exposure during application and initial off-gassing phase cannot be quantified or mitigated.
Respiratory irritation from aerosol inhalation
Spray waterproofing products commonly trigger coughing, throat irritation, and breathing difficulty during application. Propellants and atomized particles from this class of product pose acute inhalation risk, particularly for users with asthma or respiratory sensitivity.
Skin and eye contact irritation
Undisclosed chemical formulations in waterproofing sprays can cause dermatitis, eye redness, or allergic contact reactions. The absence of published safety warnings or ingredient disclosure prevents identification of known irritants or allergens specific to this product.
Persistent off-gassing into indoor air
Fluorochemical and solvent-based waterproofing sprays may continue releasing VOCs and other volatile compounds into indoor air for days or weeks after application. Treated furniture or upholstery can become an ongoing source of indoor air contamination, particularly in poorly ventilated spaces.
Environmental bioaccumulation risk via fluorochemicals
If this spray contains conventional PFAS-based water repellents (consistent with the product's high PFAS risk grade), fluorochemicals will accumulate in soil and water and persist indefinitely. Disposal of treated textiles or furniture introduces these chemicals into waste streams.
The full breakdown
What it's made of and why it matters
ATSKO Water-Guard Extreme is a proprietary waterproofing spray formulation with undisclosed active ingredients. Waterproofing sprays in this category typically rely on fluorochemical repellents or silicone-based coatings to create water resistance on fabrics and soft furnishings. The specific chemistry of this product remains unpublished, preventing independent assessment of volatile organic compounds (VOCs), solvent carriers, or other chemical constituents that off-gas during and after application.
The brand's record and disclosure
ATSKO has maintained public silence on PFAS content and broader chemical composition of Water-Guard Extreme despite industry-wide scrutiny of waterproofing products. No third-party certifications (Bluesign, OEKO-TEX, or similar) are documented for this product. The lack of proactive transparency on ingredient lists or safety data sheets is inconsistent with industry leaders who have begun phasing fluorochemicals or disclosing their use.
How it compares in its category
Waterproofing sprays occupy a high-risk category for PFAS exposure due to their reliance on fluorochemical repellents for water and stain resistance. Alternatives include PFOA/PFOS-free silicone-based sprays (e.g., Scotchgard Advanced Protector, which carries third-party testing), wax-based treatments, or paraffin-based formulations that avoid fluorochemicals entirely. ATSKO's refusal to disclose formula details puts it below competitors offering certifications or published ingredient safety profiles.
If you buy it
Apply only in well-ventilated outdoor spaces or open areas to minimize inhalation of spray aerosols and VOCs. Avoid repeated applications to the same surface unless manufacturer guidance explicitly permits it. Treated furniture should off-gas for 24-48 hours before indoor use. Allow any treated textiles or upholstery to fully dry in open air before contact with skin or food preparation surfaces. Consider reapplication frequency and whether more transparent alternatives meet your durability needs before committing to repeated use of an opaque product.
What we don’t know
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Atsko has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Outdoor Furniture Cushion Protectants
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
More outdoor furniture cushion protectants grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.