Extreme Cover Stain Blocking

Flat · Extra White · Interior paintAll 7 sheens and bases55GoodZero VOC

Health score

55Good

Cancer warning (dust only)-3Listed ingredients are hazards as inhaled dust. Wear a mask when sanding or spraying.

Indoor air15 of 40 pointsWeak

VOC level, VOC added by tint, emissions testing

Tint VOC not disclosed0The maker does not state how much VOC colorants add when tinted.

Fails emissions standard0Maker's compliance table: LEED emissions "No."

Zero VOC+150 g/L VOC in the untinted base, per the maker's environmental data sheet.

Ingredient hazards32 of 35 pointsStrong

Warnings on the Safety Data Sheet

Cancer warning (dust only)-3Listed ingredients are hazards as inhaled dust. Wear a mask when sanding or spraying.

Transparency8 of 15 pointsFair

How fully the maker lists ingredients

Good disclosure+8Publishes an environmental data sheet with its full list of volatile ingredients.

Independent verification0 of 10 pointsWeak

Health certifications confirmed with the certifier

No ingredient certification0No independent ingredient or health certification found (for example Asthma & Allergy Friendly or Green Seal).

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Scores summarize the evidence makers publish. They don't guarantee safety or predict individual health outcomes. How we score

Health scoreTop 52%Scores higher than 48% of 1,144 products

VOCLowerLower VOC than 78% of products

Same use and flat sheen, higher score.

From the Safety Data Sheet, which names ingredients that carry a hazard classification.

Product number: B30W01551
Barcodes: 790417030911
Sizes: 5 Gallon
VOC (untinted): 0 g/L
Hazard classes: Skin corrosion/irritation cat 2; Serious eye damage/ eye irritation cat 2a; Carcinogenicity cat 1a; Specific target organ toxicity (repeated exposure) cat 1
Safety Data Sheet: Revised 9/2/2026

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Preliminary score, method v1.0. Product photo from the maker, shown for identification.