Side-by-side comparison
Sherwin-Williams Extreme Cover Stain Blocking Flat Deep Base vs Behr Premium Plus Interior Flat Medium Base
| Fact | Extreme Cover Stain Blocking | Premium Plus Interior |
|---|---|---|
| Use | Interior paint | Interior paint |
| Sheen · base | Flat · Deep Base | Flat · Medium Base |
| VOC (untinted) | 0 g/L | 1 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 | 3 | 1 |
| Ingredient disclosure | Partial (environmental data sheet) | Full list (Health Product Declaration) |
| Safety Data Sheet revised | 9/3/2026 | 3/3/2026 |
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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Sources
Sherwin-Williams Extreme Cover Stain Blocking