Scotchgard Heavy Duty Water Shield vs Griot's Interior Detailer: which is safer?

Griot's Interior Detailer is the clear pick. Scotchgard Heavy Duty Water Shield carries a failing PFAS grade, and we never recommend buying a failing product.

Flectalon

Scotchgard Heavy Duty Water Shield

PFAS grade

F 45/100

Overall grade

F 0/100

Verdict

Skip

Hazard flags

⚑ 5

Material

Teflon-family coating-based water repellent coating (likely C6 or legacy PFAS)

Confidence

35%

LikelyTeflon-family coating degradation and monomer/oligomer leaching

ReportedInhalation exposure during application

PossibleMigration to food or skin contact surfaces

Why this grade

Our pick

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 →

More fabric treatment sprays: see the full ranking