Brick and Masonry Cleaners

That white bloom creeping across a brick wall is salt, and plain water will not take it off. Sun Brite Supply carries brick and masonry cleaners for efflorescence, mortar haze, rust streaks, and graffiti, picked over decades of selling to Maryland wash contractors. Describe the stain to us at 301-519-9274 and we will match the chemical before you waste a gallon on the wrong one.

Match the Brick Cleaner to the Stain

Masonry stains sort into four groups, and each one wants a different chemistry. Mineral stains cover efflorescence, calcium, and mortar smear, and they need an acid-side cleaner. Metallic stains are the orange and brown streaks from irrigation water, fertilizer, and rusting steel, and they need a rust-specific remover. Organic growth like algae and mildew responds to alkaline house wash chemistry, not acid. Carbon from smoke or exhaust needs a degreaser with real dwell time. Guess wrong and you spend the day scrubbing while the stain laughs at you.

Efflorescence and Why It Keeps Coming Back

Brick and mortar hold soluble salts. Water gets into the wall, dissolves those salts, carries them to the face, then evaporates and leaves the crystals behind. Rinsing with plain water just dissolves the salt and re-deposits it as the wall dries, which is why so many homeowners swear the stain is unbeatable. An acid-based efflorescence remover breaks the crystals down so they rinse away for real. The catch: if water is still getting into the wall through a bad cap, failed flashing, or a missing overhang, the bloom returns in a season. Clean first, fix the water source, then seal with a breathable sealer once the wall has dried for a day or three.

Mortar Haze on New Construction

New brickwork almost always carries a thin film of mortar left over from striking and bagging the joints. A detergent-boosted masonry acid dissolves the haze without burning the joint cream out of the mortar. Keep the dwell in the five to ten minute range, keep the surface wet the whole time, and rinse from the bottom of the wall up so runoff never dries on dry brick. Letting an acid cleaner dry on the face is the fastest way to trade one stain for a worse one.

Application Rules That Save Walls

Every masonry acid job follows the same playbook. Test a hidden patch first, because some brick is softer or more colorfast than it looks. Pre-wet the wall and soak any plants below it. Apply with an acid-rated pump sprayer rather than pushing acid through your pressure washer, since the chemical will chew up brass fittings and pump internals. Let it work five to ten minutes without drying. Rinse with a wide nozzle at modest pressure, under 1,000 PSI on older or softer brick, since blasting soft brick at close range scars the face permanently. Skip acid work in direct summer sun and in freezing weather. Both extremes ruin the dwell.

Stain Lookup: What You See, What You Grab

Prices move and stock rotates. Call before you drive if you need a specific jug today.

From the Field

The callbacks we hear about at the counter almost never come from a weak chemical. They come from skipped test spots and acid that dried on the wall. The other pattern worth knowing: contractors who buy a rust remover for one streak usually find the real culprit is a sprinkler head or a rusting lintel, and the stain returns until that gets fixed. Quote the repair conversation with the customer up front. One more money saver: a gallon of straight muriatic acid costs less than a buffered masonry cleaner, and it also fumes, burns mortar joints, pits some brick, and rusts every tool in your trailer. The cheap gallon is rarely the cheap option.

Related Collections

• Concrete cleaning chemicals
• Mineral stain removers
• Graffiti removers
• House washing chemicals
• Roof cleaning chemicals
• Degreasers
• Pump-up sprayers for acid application
• Chemical injectors
• All pressure washing chemicals
• Local? Visit our Gaithersburg pressure washer store

Frequently Asked Questions

What takes efflorescence off brick?

An acid-based efflorescence remover dissolves the salt crystals so they rinse away. Plain water only moves the salt around and it reappears as the wall dries. Keep the product wet on the surface for five to ten minutes, then rinse at low pressure.

Can I just use muriatic acid on brick?

You can, and plenty of people regret it. Straight muriatic acid fumes badly, etches mortar joints, discolors some brick, and corrodes nearby metal. Buffered masonry cleaners cost more per gallon and cause far fewer problems on the wall and on your lungs.

Why does the white haze come back after I clean it?

Because water is still moving through the wall. Efflorescence needs moisture to carry salts to the surface. Until the cap, flashing, or drainage problem gets fixed, cleaning is temporary. Clean, fix the water source, then apply a breathable sealer after the wall dries for 24 to 72 hours.

What pressure should I use when washing brick?

Less than you think. Use a wide fan nozzle and stay under roughly 1,000 PSI on older or soft brick, and keep the wand moving at a consistent distance. High pressure at close range removes the fired face of the brick, and that damage does not buff out.

How do I remove rust stains from brick?

Use a rust-specific remover like F9 BARC or Rust Pro rather than bleach or a general acid, which can set the stain. Apply, let it dwell, and rinse. Then find and fix the metal or irrigation source or the streak comes back.

Should brick be sealed after chemical cleaning?

On walls with recurring efflorescence or heavy weather exposure, yes. Wait 24 to 72 hours until the masonry is fully dry, then use a breathable penetrating sealer. Film-forming sealers trap moisture in the wall and can make salt problems worse.