ProBlock Interior Oil-Based Primer

N/A · Gray · Interior primer14Bad

Health score

14Bad

Reproductive warning-15Suspected of damaging fertility or the unborn child.
Organ toxicity warning-8May affect organs through repeated or high exposure (for example solvent vapors).
Cancer warning (dust only)-3Listed ingredients are hazards as inhaled dust. Wear a mask when sanding or spraying.

Indoor air0 of 40 pointsWeak

VOC level, VOC added by tint, emissions testing

High VOC0522 g/L VOC in the untinted base, per the maker's environmental data sheet.

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

No emissions testing0No emissions testing or certification found.

Ingredient hazards6 of 35 pointsWeak

Warnings on the Safety Data Sheet

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

Reproductive warning-15Suspected of damaging fertility or the unborn child.

Organ toxicity warning-8May affect organs through repeated or high exposure (for example solvent vapors).

Aspiration hazard-3May be fatal if swallowed and enters airways.

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 88%Scores higher than 12% of 99 products

VOCHigherLower VOC than 1% of products

Same use and n/a sheen, higher score.

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

Acetone Propan-2-one10-30%
Lt. Aliphatic Hydrocarbon Solvent10-30%
Propane Propane10-30%
Calcium Carbonate7-13%
Butane7-13%
Titanium Dioxide7-13%
Talc1-5%
Light Aliphatic Hydrocarbon1-5%
Xylene, mixed isomers0.1-1%
pentanediol Diisobutyrate 2,2,4-Trimethylpentane-1,3-diyl bis(2-methylpropanoate)0.1-1%
Light Aliphatic Hydrocarbon0.1-1%
Crystalline Silica, respirable powder0.1-1%

Product number: C22903007
Barcodes: 724504055259
Sizes: 12 oz
VOC (untinted): 522 g/L
Hazard classes: Aerosols cat 1; Skin corrosion/irritation cat 2; Serious eye damage/ eye irritation cat 2a; Carcinogenicity cat 1a; Toxic to reproduction cat 2; Specific target organ toxicity (repeated exposure) cat 1; Aspiration hazard cat 1
Safety Data Sheet: Revised 8/17/2026

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