Efflorescence: the white haze on new pavers, and why sealing early makes it permanent
Salts, water and evaporation. Wait, rinse, then seal.
- What
- Soluble salts brought to the surface by water
- When
- First weeks after install; after wet months
- Goes away?
- Mostly, with rain and time
- Don't
- Seal before it's gone; use acid on stone
Why do new pavers turn white, and what should I do?
Water moving through concrete pavers and their bedding dissolves salts from the cement and carries them to the surface, where it evaporates and leaves a white haze called efflorescence. It's expected on new installs, peaks in the first weeks and mostly disappears over a few months of rain. Wait 30 days before sealing so it can work out; if it persists, an efflorescence cleaner made for pavers removes it. Acid on travertine or marble etches the stone.
Sealed too early, the salts are locked under the sealer as a permanent white cloud, and the fix is stripping the sealer. That's the reason every paver job here schedules sealing at 30 days, not on the last day of the install.
Timeline
| When | What you see | What to do |
|---|---|---|
| Week 1 to 4 | White haze after each rain | Nothing; brush dry |
| Month 2 to 3 | Fading | Rinse; still no sealer |
| Month 3+ | Gone or faint | Clean with efflorescence cleaner if needed; seal |
| Years later, after wet months | Reappears in low spots | Drainage check; clean |
Questions we get about this
What is efflorescence on new pavers and will it go away?
A white, powdery deposit of soluble salts carried to the surface by water evaporating from the paver body and the bedding. On new concrete pavers it's expected, peaks in the first weeks and mostly washes away over a few months of rain; where it persists, an efflorescence cleaner removes it. Sealing before it has worked out traps it under the sealer as a permanent haze.
Is it the same as sealer blush?
No. Sealer blush is a film sealer turning white from moisture trapped underneath; it needs stripping. Efflorescence sits on the surface and brushes off dry.
Does travertine get it?
Less, but calcium carbonate can show a similar haze from hard water and bedding minerals; the same neutral cleaner and patience apply, never acid.
Last reviewed September 10, 2026 by the Sarasota Concrete editorial team (author name pending owner input).