Is Behr PRO Block Filler Primer toxic?
No paint is risk-free, and "toxic" depends on how much you're exposed to and for how long. Here is what Behr's own documents show. Behr PRO Block Filler Primer scores 73 out of 100. Its untinted VOC is 22 g/L. Its Safety Data Sheet lists no hazard classifications. It documents third-party low-emissions testing (GREENGUARD).
- Health score
- 73
- VOC g/L
- 22
- Use
- Exterior primer, Interior primer
Safety Data Sheet warnings
None. The Safety Data Sheet lists no hazard classifications.
Evidence beyond the label
- Emissions testing: documented (GREENGUARD)
- Health certification: none found
- Full ingredient list (Health Product Declaration): published
Product
Updated October 12, 2026. Scores summarize the evidence makers publish. They don't guarantee safety or predict individual health outcomes. No brand pays to be listed. How we score