303 Protectant · Fabric Stain Guard Sprays
303 High Tech Fabric Guard
Wait for ingredient disclosure or PFAS-free certification before buying.
This water and stain resistant fabric treatment uses a proprietary polymer with no PFAS statement or independent testing backing it up.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Proprietary polymer coating for fabric protection
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What 303 High Tech Fabric Guard is made of, ingredients and materials
303 High Tech Fabric Guard is a proprietary polymer-based coating designed to repel liquids and stains from fabric surfaces. The exact chemical composition is not publicly disclosed by the manufacturer, which prevents independent assessment of potential leachables or off-gassing compounds. The product is applied as a liquid spray that dries to form a protective layer, typical of water-repellent textile treatments used in automotive and home furnishings. Without ingredient transparency, users cannot evaluate exposure to volatile organic compounds (VOCs), residual solvents, or polymer breakdown products over time.
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.
VOC and solvent off-gassing
Spray-applied polymer coatings typically contain volatile carriers that off-gas during cure. 303 does not disclose solvent composition, so inhalation exposure during and immediately after application cannot be quantified. Well-ventilated application reduces risk significantly.
Respiratory irritation from aerosol inhalation
The spray format presents fine-particle inhalation hazard during application. While not explicitly recalled or warning-flagged, spray protectants of this type carry inherent respiratory risk if applied in enclosed spaces; this is typical for the category rather than unique to 303.
Coating degradation and microplastic shedding
Polymer coatings on fabric gradually degrade with washing and wear. No testing data is publicly available on whether 303's proprietary formula sheds microparticles into wash water or air over its lifespan; this is a data gap across most commercial fabric protectants.
Skin and eye contact irritation
303 product labels advise against skin and eye contact, indicating the spray formulation contains irritants typical of liquid polymer coatings. Serious injury from incidental contact is unlikely, but stinging and temporary irritation are recognized risks noted on the product.
Incompletely characterized proprietary polymer safety
The core hazard is the brand's refusal to disclose coating chemistry. Proprietary formulations may contain unregulated or minimally-tested polymer additives, plasticizers, or crosslinkers. Without third-party testing or certification, safety of long-term fabric contact and laundering cannot be independently verified.
How is this PFAS grade calculated?
The brand's record and disclosure
303 Products has not publicly disclosed their fabric guard formulation or confirmed PFAS-free status, despite decades of production in the protective coatings market. The brand maintains silence on fluorochemistry content despite industry-wide scrutiny of textile protectants for PFAS use. No third-party certifications (such as STANDARD 100 by OEKO-TEX or GREENGUARD) are advertised for this product. This lack of transparency is notable given that competing fabric protectants increasingly seek certifications or explicitly state PFAS avoidance.
How it compares in its category
Fabric protectant sprays vary widely in safety profile; some brands now certify PFAS-free status or use fluorocarbon-free silicone-based alternatives, while others remain proprietary and undisclosed like 303. Performance-wise, 303 is a market-standard water-repellent coating popular in automotive and home use, but transparency leaders in the category (such as products with Bluesign or OEKO-TEX certification) offer comparable protection with verifiable chemical safety. 303's lack of disclosure puts it in a middle position, effective but higher-uncertainty than certified alternatives.
If you buy it
Apply in well-ventilated areas (outdoors preferred) to minimize inhalation of spray aerosol and any VOC release during drying, which typically takes 24-48 hours. Test on inconspicuous fabric first; avoid use on delicate or non-colorfast materials. Reapply every 6-12 months depending on fabric exposure and wash frequency, as the coating gradually wears. If you have concerns about PFAS or chemical sensitivity, contact 303 directly requesting full formulation disclosure or ingredient certification before purchase; their silence suggests they may not have the documentation readily available.
What is not known about PFAS in this product?
- Basis
- Model estimate, 45% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- 303 Protectant has made none
Formulations change between production runs, so check the current label. How we grade.
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