Atsko Review, Is Atsko Non-Toxic?
Across 8 graded products, Atsko averages Poor (39/100). On disclosure, the brand says nothing publicly about PFAS. 1 of its products grade Good or better. 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.
Does Atsko have PFAS, by category
Worth buying from Atsko Good or better, best-graded first
Atsko
Zero UV Killer Spray
UV-absorbing liquid spray (aqueous/solvent formulation)
Volatile organic compounds (VOCs) and solvent exposure
Spray-applied formulations in this category typically emit significant VOCs during…
Fragrance allergens and undisclosed additives
Many fabric treatment sprays include fragrance to mask solvent odor; these compounds can…
Skin and eye contact irritation
Spray application carries inherent risk of overspray or splashing onto skin or eyes…
PFAS
Water-resistant and UV-protective spray formulations in the furniture treatment category…
UV protection spray; PFAS risk remains unclear without ingredient details.
⚠Starting grade for this product type
Graded and flagged Poor and Bad, we’d swap these
Atsko
8 oz. Sno-Seal
Wax-based waterproof treatment
Volatile organic compounds (VOCs) from solvents
Wax-based waterproofing treatments typically contain mineral spirits, toluene, or other…
Flame retardants
Wax-based treatments do not inherently require flame retardant additives, but if Atsko…
Off-gassing or residual solvent exposure post-application
Users of wax-based treatments commonly report odor and mild irritation after application…
Wax treatment likely lower risk than fluorinated alternatives, history unclear.
⚠Starting grade for this product type
Atsko
Water-Guard Extreme Waterproofing Spray
proprietary waterproofing spray formulation, unspecified
Volatile Organic Compounds (VOCs) and solvent emissions
Spray-applied waterproofing formulations typically contain hydrocarbon or solvent…
Respiratory irritation from aerosol inhalation
Spray waterproofing products commonly trigger coughing, throat irritation, and breathing…
Skin and eye contact irritation
Undisclosed chemical formulations in waterproofing sprays can cause dermatitis, eye…
Persistent off-gassing into indoor air
Fluorochemical and solvent-based waterproofing sprays may continue releasing VOCs and…
Wait for better formula transparency.
⚠Waterproof or stain-proof treatment
Atsko
SILICONE WATER-GUARD
silicone-based water repellent coating
Volatile organic compounds (VOCs) from solvent carriers
Silicone water guards require hydrocarbon or alcohol solvents to apply; these off-gas…
Heavy metals
Silicone polymers may include tin, platinum, or other catalytic metals in trace amounts…
PFAS
Atsko does not provide full ingredient transparency or PFAS certification. Given the…
Wait. Silicone water guard lacks PFAS transparency.
⚠Waterproof or stain-proof treatment
Atsko
U-V Block Sun Protection Fabric Treatment
UV-blocking fabric treatment, formulation undisclosed
Volatile organic compounds (VOCs) / solvent inhalation
The carrier solvent for this treatment is not identified on available labeling. Fabric…
Heavy metals
If this product uses mineral UV absorbers like titanium dioxide or zinc oxide, those are…
Skin or eye irritation from residual treatment
If fabric is not fully dried or rinsed post-treatment, residual solvent or UV-blocking…
Fabric degradation or discoloration over time
Some UV-blocking treatments can cause yellowing, stiffening, or weakening of synthetic…
Wait until the brand confirms PFAS status or publishes third-party testing.
⚠Waterproof or stain-proof treatment
Atsko
Water-Guard Extreme
Proprietary waterproof treatment on furniture fabrics
PFAS
Proprietary formula is undisclosed; fluorochemicals are industry standard in…
Volatile organic compounds (VOCs) from treatment application
Any sprayed or applied textile finish may release VOCs during curing. Atsko provides no…
Coating degradation and microparticle shedding
water-repellent coating treatments degrade with use and washing; no public data on…
Wait for better transparency or independent testing results.
⚠Waterproof or stain-proof treatment
Atsko
Water-guard Extreme Aerosol Pack of 1
Waterproofing treatment (aerosol spray formulation)
Volatile Organic Compounds (VOCs) from aerosol propellant and solvent
Aerosol spray formulations release hydrocarbon propellants and carrier solvents that are…
Inhalation exposure during application
Aerosol waterproofing sprays carry documented respiratory risk if used indoors without…
Coating degradation and reapplication frequency
All water-repellent coating coatings, fluorinated or not, degrade with washing and…
Lack of safety data sheet and ingredient transparency
Atsko does not publish a Safety Data Sheet (SDS) or ingredient list readily available to…
This aerosol likely contains PFAS; the brand discloses nothing.
⚠Waterproof or stain-proof treatment
Atsko
Silicone Water-Guard Aerosol 4.4 oz.
Silicone-based water-repellent aerosol
Volatile organic compounds (VOCs) and propellant inhalation
Aerosol formulations release propellants and solvents upon spray; Atsko does not disclose…
Respiratory and skin sensitization from fragrance or undisclosed co-solvents
Atsko does not list fragrance or co-solvent ingredients publicly. Aerosol exposure to any…
Coating degradation and re-application frequency
Silicone water guards typically degrade faster than fluorinated alternatives, requiring…
Silicone water guards usually avoid PFAS, but Atsko says nothing.
⚠Waterproof or stain-proof treatment
Atsko and PFAS, common questions
- Does Atsko have PFAS?
- We graded 8 Atsko products, averaging Poor (39/100). 1 grade Good or better. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Atsko non-toxic?
- Atsko Zero UV Killer Spray is the highest-graded Atsko product we have scored, at 75/100. It depends on the product line rather than the brand, so check the grade of the exact item you are buying.
- Which Atsko products are lower concern for PFAS?
- The highest-graded Atsko products we have scored are Atsko Zero UV Killer Spray. That is our model-based estimate from materials and public disclosure, not a lab test.
- Which Atsko products should I avoid?
- The lowest-graded Atsko products we have scored are Atsko Silicone Water-Guard Aerosol 4.4 oz., Atsko Water-guard Extreme Aerosol Pack of 1, Atsko Water-Guard Extreme. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →