303 Marine Fabric Guard vs Griot's Interior Detailer: which is safer?

Griot's Interior Detailer is the clear pick. 303 Marine Fabric Guard carries a failing PFAS grade, and we never recommend buying a failing product.

303 Marine Fabric Guard

303 Protectant

303 Marine Fabric Guard

PFAS grade

F 45/100

Overall grade

F 33/100

Verdict

Skip

Hazard flags

⚑ 3

Material

Proprietary water and stain repellent coating

Confidence

45%

PossibleInhalation exposure to volatile organic compounds (VOCs) and propellant aerosols

PossibleSkin and eye sensitization from undisclosed surfactants and additives

PossibleAquatic toxicity from rinse or runoff (if applicable)

Why this grade

Our pick

Griot's Interior Detailer

Griot's Garage

Griot's Interior Detailer

PFAS grade

A 100/100

Overall grade

A 92/100

Verdict

Buy

Hazard flags

⚑ 2

Material

water-based detergent/cleaner concentrate

Confidence

72%

PossibleSurfactant irritation (skin and eye contact)

PossibleMicrobial growth in diluted solution

Why this gradeBuy

Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →

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