Side-by-side comparison
Valspar Prep Step Multi-Purpose Primer Tintable White vs Behr Behr PRO Block Filler Primer
| Fact | Prep Step Multi-Purpose Primer | Behr PRO Block Filler Primer |
|---|---|---|
| Use | Exterior primer, Interior primer | Exterior primer, Interior primer |
| Sheen · base | Tintable White | — |
| VOC (untinted) | <50 g/L | 22 g/L |
| VOC added by tint | Not stated | Not stated |
| Emissions testing | Not documented | Tested (GREENGUARD) |
| Health certification | None found | None found |
| Safety Data Sheet warnings | 2 | None |
| Ingredient disclosure | Safety Data Sheet only | Full list (Health Product Declaration) |
| Safety Data Sheet revised | 8/9/2026 | 5/20/2020 |
Highlighted rows are where the two products differ. Facts come from each maker's documents; "not disclosed" means the maker hasn't published it, not that the product failed a test.
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Scores summarize the evidence makers publish. They don't guarantee safety or predict individual health outcomes. How we score
Sources
Valspar Prep Step Multi-Purpose Primer
Behr Behr PRO Block Filler Primer