Painting brick can seem like a good idea to freshen up the look of a home’s exterior. However, over time, the paint may start to peel, crack or just not look as good. Removing the paint and restoring the original brick facade can be desirable but also very challenging. Using a chemical paint stripper is one of the most effective ways to remove paint from brick.

What Type of Paint is on the Brick?

The first step is to identify what type of paint is currently on the brick. This will determine which type of stripper will work best for removing it.

Latex Paint

Latex paint, also called acrylic paint, is water-based and commonly used for paintingexteriors. It can usually be removed with a chemical paint stripper formulated for latex paints. Strippers with methylene chloride work well for pulling up latex paint.

Oil-Based Paint

Oil-based paints include enamels, alkyd and epoxy paints. They form a hard, glossy finish that adheres tightly to surfaces. Removing oil-based paints requires a heavy-duty chemical stripper made for cutting through the oil binders. Citrus-based or soy gel strippers are noteffective on oil paint. Opt for methylene chloride or NMP-based strippers.

Solvent-Based Paints

Paints like lacquers, varnishes, shellacs and urethanes all use solvents as their carriers. As the solvent evaporates, the paint cure and hardens. These coatings can prove extremely difficult to remove from brick. Powerful stripping agents with methylene chloride provide the best chance of lifting off layers of solvent-based paints.

Lead Paint

Homes built before 1978 may have layers of lead paint on the brick covered by new paint. This poses health risks, especially when trying to remove it. Get the existing paint tested professionally to determine if lead is present. Special safety precautions are required for stripping lead-based paints. Consider hiring an EPA Lead Safe Certified professional.

Gather the Right Paint Stripping Tools

Removing paint from brick requires some key tools and equipment to get the job done safely and efficiently.

Chemical Paint Stripper

A high-quality chemical paint stripper designed for exterior masonry surfaces is essential. Options include:

Methylene chloride – Works quickly stripping multiple layers of latex and oil-based paints
N-Methyl-2-pyrrolidone (NMP) – Slower acting but good for removing thick, stubborn paint
Benzyl alcohol – Safer alternative good for softening many paint types
Eco-friendly citrus or soy – Less effective but non-toxic for lead paint removal

Choose a stripper suitable for the type of paint on the brick.

Applicators

You need tools to effectively apply the stripping chemicals to the bricks:

Paintbrushes – Use natural bristle brushes for applying stripper
Spray bottle – For larger areas, spraying stripper is faster
Paint scraper – A long handled scraper reaches bricks high up
Wire brush – Scrubs paint softened by the stripper
Pressure washer – Power washer helps rinse stripped paint residue

Safety Gear

Chemical strippers require important safety equipment:

Chemical-resistant gloves – Protect hands from harsh stripping compounds
Goggles – Prevent stripper splashes from getting in eyes
Respirator mask – Avoid breathing in toxic stripper fumes
Clothes/boot covers – Keep stripper off skin and clothing

Proper safety gear is a must when working with hazardous chemical paint strippers.

How to Use Paint Stripper on Brick

With the right supplies gathered, you can tackle removing paint from brick using a safe and effective process:

1. Prepare the Brick Surface

Before applying stripper, prepare the brick surface:

Chip off any cracked or peeling paint with a scraper or wire brush
Remove dirt, mold and debris with water and scrub brush
Cover any nearby plants/grass and unaffected areas

Proper prep prevents the stripper from penetrating deeper into the brick.

2. Apply the Paint Stripper

Follow the product directions to mix and apply the stripper:

Stir or shake the stripper thoroughly before using
Pour it into a paint tray or spray bottle for application
Brush or spray a thick layer completely covering the painted brick
Let the stripper dwell for the recommended time

Applying a generous amount ensures the stripper can fully penetrate the paint.

3. Scrub and Scrape Away Paint

After letting the stripper soak in adequately:

Scrub softened paint with a stiff bristle brush
Use a paint scraper to lift paint off the bricks
Reapply stripper to stubborn areas as needed
Rinse the brick with a pressure washer

Scrubbing helps the stripper thoroughly remove the paint down to the bare brick.

4. Neutralize Chemical Residue

It’s crucial to properly neutralize and rinse the stripped surface:

Mix the neutralizing solution specified on the stripper directions
Apply it liberally to the stripped brick and let sit briefly
Pressure wash the brick to fully rinse off all residue
Check that the surface pH is neutral using test strips

Neutralizing removes remaining stripper and prevents brick damage.

5. Clean and Protect the Brick

Finish up by cleaning and sealing the newly stripped brick:

Use a brick cleaner to remove any remaining residue
Let the brick dry completely for several days
Apply a quality brick sealer to protect from future paint penetration
Allow sealer to cure fully before exposing to rain

Proper cleaning and sealing gives the stripped brick lasting protection.

Tips for Stripping Paint from Brick Successfully

Refurbishing brick by removing paint takes some work, but following these tips helps ensure success:

Test the stripper first on a small inconspicuous area of brick
Apply a thick coat of stripper for maximum effectiveness
Give the stripper plenty of dwell time to fully penetrate the paint
Reapply stripper to tough spots until they are paint-free
Always follow safety precautions when using hazardous strippers
Pressure rinse thoroughly to remove all stripper and paint residue
Wear old clothes and shoes since splashes may damage them
Work in shaded areas out of direct sunlight which dries the stripper faster
Mist the brick with water if the stripper dries out before removing paint
Use a chemical resistant sealer on the brick to help repel future paint

Taking these extra steps when stripping paint from brick can save much time and frustration.

What Are the Dangers of Paint Strippers?

While very effective at removing paint, chemical paint strippers also pose some significant dangers:

Inhalation Hazards

Most solvent-based strippers contain volatile toxic vapors that should not be inhaled. This can cause coughing, dizziness, headache and nausea. Always wear a respirator when using these strippers.

Skin and Eye Irritation

Stripper splashes on skin or eyes results in burning, itching and redness. Some strippers severely burn and blister skin. Proper protective equipment is essential.

Fire and Explosion Risks

Some paint stripper solvents are flammable. Never use strippers near open flames or other ignition sources. Always have proper ventilation too.

Environmental Pollution

Strippers with methylene chloride, NMP and benzyl alcohol are considered hazardous waste. They must be disposed of properly at waste management facilities.

Working safely requires taking precautions against these stripper dangers. Consider eco-friendly options when possible.

FAQ About Using Paint Strippers on Brick

Here are answers to some frequently asked questions about removing paint from brick with chemical strippers:

Should I try other methods before paint stripper?

Yes, start with less hazardous methods. Trying power washing, sand or soda blasting before paint strippers reduces chemical usage.

What if stripper isn’t working effectively?

Reapply a fresh coat of stripper. Let it dwell longer. Use a brush to scrub paint as the stripper softens it. Harsher strippers or sandblasting may be needed for extremely stubborn paint.

How long does stripper take to work?

Dwell times range 15 minutes to several hours depending on the product. Follow manufacturer guidelines, reapplying if paint isn’t lifting after recommended time.

Is it okay to leave stripper on overnight?

No, excessive dwell time can allow stripper to penetrate too deeply into the brick. Most need to be neutralized and rinsed off within 12 hours.

How do I get paint out of crevices and indented areas in the brick?

Use a small stiff brush dipped in stripper to scrub into crevices. Spot treat stubborn spots. Borax can help draw out old paint.

What’s the best way to neutralize and rinse the brick?

Mix the neutralizing agent specified by the stripper directions. Apply, let sit 5-10 minutes and then rinse thoroughly with a pressure washer. Check surface pH to confirm neutralization.

Can I dispose of stripper residue down the drain?

No, most strippers contain hazardous compounds. Collect waste stripper and dispose at approved hazardous waste management facility.

How soon can I paint or seal stripped brick?

Let stripped brick dry completely 3-5 days before painting or sealing. Sealing too soon can trap moisture inside the brick causing more damage.

Using the proper techniques and precautions when stripping paint from brick can provide great results safely.

Conclusion

Removing paint from brick with chemical strippers provides a very effective method to reveal the natural facade underneath years of built-up paint. Methylene chloride and NMP-based strippers work well to cut through the tough adhesion between paint and brick. Taking proper safety measures is critical when handling these hazardous stripping compounds. With the right tools and proper process, paint can lifted fully off the underlying masonry. A final step of cleaning and sealing gives the restored brick surface protection from the elements and future paint jobs. With care and patience, the historical beauty of original brickwork can be uncovered and preserved for the long term.

How to Remove Paint From Brick With Paint Stripper

Introduction

Brick is a classic and attractive building material for home exteriors. However, over time it is common for brick surfaces to be painted or coated to change up the look or protect the masonry. Eventually this painted finish can start chipping, peeling and looking unsightly. Removing the built-up layers of old paint and restoring the original brick facade is desirable but can prove extremely challenging.

One of the most effective methods of stripping paint from brick is using a chemical paint remover or stripper. When applied correctly, paint strippers can penetrate through layers of latex, oil and solvent-based paints to lift them from the masonry underneath. However, chemical strippers also pose certain dangers and hazards if not used carefully with the proper safety gear.

This guide will outline a process for using paint stripping products to remove paint safely and successfully from brick surfaces.

Gather the Right Supplies

Before starting any paint removal project, it is important to gather all the necessary tools and materials:

Select the Paint Stripper

Choose a high-quality paint stripper formulated for exterior masonry:

Methylene chloride-based strippers work quickly on multiple layers
Citrus or soy gel strippers are slower but contain no harsh chemicals
Opt for an eco-friendly stripper if lead paint is present

Make sure the stripper chosen is suitable for the type of paint applied to the brick. Oil and latex enamels, for example, require stronger solvents to cut through than just latex paints.

Stripper Application Tools

Having the right applicator tools makes applying stripper easier:

Natural bristle brushes to effectively brush on stripper
Spray bottles for larger surface coverage
Paint scrapers to scrape off paint once loosened
Pressure washer for rinsing stripped residue

Safety Gear

Chemical strippers require important protective equipment:

Chemical-resistant gloves to protect skin
Goggles or face shield to prevent eye injury
Respiratory mask to avoid breathing toxic fumes
Coveralls or apron to keep chemicals off clothing

Following all safety precautions when using paint strippers prevents dangerous exposures.

How to Use Paint Strippers on Brick

Once you have gathered all the necessary supplies, follow this complete process for safe and effective paint removal from brick:

Prep the Brick Surface

Proper prep makes stripping more effective:

Use a wire brush to scrub off any loose, flaking paint
Clean the surface with water and detergent using a stiff scrub brush
Cover any nearby plants or grass to prevent damage

This prevents the stripper from penetrating deeper into the brick substrate.

Apply the Paint Stripper Liberally

Follow the manufacturer’s directions closely when applying the stripper:

Stir or mix the stripper thoroughly before using
Generously coat the painted brick, covering completely
For speed, spray larger areas then back-brush
Allow stripper to dwell for the recommended time

Applying stripper too thinly results in inadequate paint removal.

Scrub and Scrape Off the Paint

After adequate dwell time:

Scrub with a stiff nylon brush to lift softened paint
Use a paint scraper to pry off loosened paint
Reapply stripper to any remaining tough spots
Rinse thoroughly with a pressure washer

Repeated stripping and scrubbing may be needed for extremely stubborn paints.

Neutralize Chemical Residue

Proper neutralization prevents brick damage:

Mix the neutralizing solution according to stripper label
Apply liberally and let sit 5-10 minutes
Pressure wash surface to remove all residue
Check that surface pH is neutral with test strips

Failing to neutralize may result in permanent discoloration or deterioration of the brick.

Clean and Seal the Brick

Finish up by cleaning and sealing the stripped surface:

Use a specialized brick cleaner to remove any leftover residue
Allow 2-3 days drying time before sealing or painting
Apply a quality brick sealer to protect from the elements

Proper sealing prevents paint from adhering again in the future.

Tips for Safe and Successful Paint Stripping

Follow these tips when taking on stripping paint from brick:

Test strip small area first to confirm stripper is working effectively
Apply a very generous coat of stripper for best results
Mist with water if stripper starts to dry before dwell time is complete
Use extreme caution and wear protective gear at all times
Properly contain and dispose of used stripper according to regulations
Let stripped brick dry thoroughly before applying any new finishes

Exercising patience and taking necessary safety steps makes stripping brick paint safer and more successful.

Dangers to Avoid When Using Paint Strippers

While extremely effective, chemical paint strippers also pose certain dangers:

Toxic Fumes – Respirator masks should always be worn to prevent dangerous inhalation
Skin and Eye Burns – Wear protective clothing, gloves and goggles at all times
Fire Risk – Strippers are flammable and explosive. Ensure proper ventilation
Environmental Damage – Stripper runoff must be contained and disposed of properly

Staying aware of these hazards and taking precautions ensures the stripping process will be safe for people, pets, wildlife and the surrounding environment.

Conclusion

Paint removal from brick using chemical strippers, when done properly, provides an efficient way to eliminate years of built up paint and restore the original facade. Always test a small area first to select the most effective stripper and method. Apply the stripper liberally to allow maximum dwell time for the product to fully penetrate the layers of paint. Neutralizing and rinsing residue thoroughly after stripping helps prevent permanent damage to the underlying masonry. With the proper safety gear and precautions, paint strippers let you strip away old paint and uncover the beauty in brick once again.