Efflorescence on Concrete: How to Remove White Powder

Efflorescence on Concrete: How to Remove White Powder

Efflorescence is white powder on concrete caused by salt leaching out. Remove it by scrubbing with vinegar and water. Seal the concrete to prevent it from returning. Understanding efflorescence helps you remove it and prevent recurrence.

What is Efflorescence?

Efflorescence is:

• White powder: White, powdery deposit on surface
• Salt leaching: Salts from concrete or ground leaching out
• Water soluble: Dissolved salts brought to surface by water
• Cosmetic issue: Affects appearance but not strength

How to Remove

Remove efflorescence:

1. Mix solution: Mix vinegar and water (50/50)
2. Scrub surface: Scrub with stiff brush
3. Rinse: Rinse thoroughly with water
4. Repeat if needed: May need multiple applications

Prevent Return

Seal concrete to prevent return:

• Apply sealer: Seal concrete surface
• Blocks water: Prevents water from entering
• Stops leaching: Stops salts from reaching surface
• Prevents recurrence: Keeps efflorescence from returning

The Bottom Line

Efflorescence is salt leaching out, creating white powder. Remove it by scrubbing with vinegar and water. Seal the concrete to prevent it from returning. Sealing blocks water entry and stops salt leaching to the surface.

Have efflorescence problems? Contact Local Concrete Contractor. We can remove efflorescence and seal concrete to prevent recurrence.