Zep · Outdoor Furniture Cushion Protectants
Zep Surface Protectant, Water, Liquid, Exterior, Pail, Sealers, 5 gal Container Size, Spray Sealer
Skip due to waterproofing without PFAS disclosure.
No ingredient list or PFAS statement provided. Waterproofing formulas frequently contain PFAS.
The better-graded swap
Ethan Allen
ETHAN allen Spring Floral Garden Pillow
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
Water-based sealer coating, composition unspecified
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Zep Surface Protectant, Water, Liquid is made of, ingredients and materials
This is a water-based liquid sealer sold for exterior furniture protection, but Zep has not published the specific polymer binder, resin type, or additive package on the label or accessible safety data sheets. Water-based coatings typically use acrylic or polyurethane dispersions, but without ingredient disclosure, you cannot assess whether volatile organic compounds (VOCs), preservatives, or other additives pose inhalation or dermal risks during application. The lack of specification is the primary concern, you are buying a protective coating blind.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
Volatile organic compounds (VOCs) and inhalation risk
Water-based formulations still contain VOCs from coalescents and biocides; Zep does not disclose VOC content or off-gassing profile for this sealer, so inhalation risk during spray application cannot be quantified.
Coating degradation and leachable additives
Exterior water-based sealers degrade under UV and moisture cycles, potentially releasing uncrosslinked oligomers, plasticizers, or preservative additives; no durability testing data or leachate analysis is publicly available for this product.
Formaldehyde / VOCs
Water-based coatings often use formaldehyde-releasing biocides to prevent mold and bacterial growth in the can; Zep does not disclose preservative type, so presence of formaldehyde releasers cannot be ruled out.
Source, ATSDR ↗Dermal or eye irritation from spray application
Safety data sheets for Zep water-based sealers typically list the product as an irritant; spray application increases risk of aerosol contact with skin and mucous membranes if protective equipment is not used.
Microbial growth in opened or stored containers
Water-based formulations are susceptible to bacterial and fungal contamination if stored in warm conditions or left open; Zep does not specify shelf life or storage recommendations for this sealer.
The full breakdown
The brand's record and disclosure
Zep is a large industrial and consumer cleaning and coating manufacturer owned by Cupid PLC, with a mixed record on transparency. The company provides safety data sheets for most products but does not routinely disclose full formulations or third-party certifications (e.g., GreenGuard, FloorScore) on consumer-facing sealer products. No major recalls or safety controversies specific to this sealer line are on public record, but the company's silence on PFAS presence in waterproofing coatings aligns with industry-wide opacity on the issue.
How it compares in its category
Water-based exterior sealers range from simple acrylic topcoats to more durable polyurethane or hybrid formulations. Zep's product occupies a mid-market position, likely more durable than basic acrylic but without the claimed longevity or environmental certifications of premium brands like Minwax or Varathane, which are more transparent about binder chemistry. Most competitors in this price tier also withhold full formulation data, making direct safety comparison difficult.
If you buy it
Apply in well-ventilated outdoor areas to minimize inhalation of VOCs and spray residue; wear gloves and eye protection during application. Monitor coated surfaces annually for peeling, chalking, or fading, which signal degradation and may trigger leaching of uncrosslinked binder or additives into moisture contact. Reapply every 2-3 years depending on weather exposure; do not use on food-contact surfaces or play equipment without explicit product approval. Store in a cool, dry place and do not leave opened containers exposed to microbial growth.
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
- Zep has made none
Formulations change between production runs, so check the current label. How we grade.
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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.