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Exposed brick is the star of lofts and older homes, but raw brick sheds dust, absorbs stains and is hard to clean. The best brick sealer for exposed brick walls locks down the surface and makes cleaning easy while keeping the authentic, matte character.
Indoors, you can choose between penetrating sealers (most natural) and film sealers (best dust control). We compared both and explain how to keep the brick from looking wet or shiny.
Quick Answer: The Best Brick Sealer for Exposed Brick
- Best Overall: MasonryDefender Brick Sealer Satin Sheen, Water-Based, Reduces Dust (1 gal, 2-Pack)
- Best Invisible Finish: Prosoco Sure Klean Weather Seal Siloxane PD Water Repellent (1 gal)
- Best Clear Option: Drylok Clear Latex Masonry Waterproof Sealer (1 gal)
- Best Widely Available Satin: Rust-Oleum Seal-Krete Original All-Purpose Waterproofer (1 gal)
- Best Stain Protection: Max Guard Water-Based Penetrating Stone Sealer (Repels Oil & Water, Low Odor)
- Best Sprayer: Chapin 25012 1-Gallon Clean ’N Seal Poly Deck Sprayer
MasonryDefender’s satin brick sealer is the best brick sealer for exposed brick walls that shed dust; Prosoco Siloxane PD is the best for an invisible natural finish, and Drylok Clear is a reliable clear option.
Best Brick Sealer for Exposed Brick Comparison Table
| Product | Best For | Type | Key Feature | Buy |
|---|---|---|---|---|
| MasonryDefender Brick Sealer Satin Sheen, Water-Based, Reduces Dust (1 gal, 2-Pack) | Best Overall | Film-forming brick sealer | Satin sheen, reduces dust per listing | Check Price |
| Prosoco Sure Klean Weather Seal Siloxane PD Water Repellent (1 gal) | Best Invisible Finish | Penetrating siloxane water repellent | Breathable, invisible water repellent | Check Price |
| Drylok Clear Latex Masonry Waterproof Sealer (1 gal) | Best Clear Option | Clear masonry waterproof sealer | Clear latex, basement walls | Check Price |
| Rust-Oleum Seal-Krete Original All-Purpose Waterproofer (1 gal) | Best Widely Available Satin | Film-forming waterproofer | Satin clear, water-based | Check Price |
| Max Guard Water-Based Penetrating Stone Sealer (Repels Oil & Water, Low Odor) | Best Stain Protection | Water-based penetrating sealer | Repels oil and water, natural look | Check Price |
| Chapin 25012 1-Gallon Clean ’N Seal Poly Deck Sprayer | Best Sprayer | Pump sprayer | Compact 1-gal sealer sprayer | Check Price |
The 6 Best Sealers for Exposed Brick
Our picks for the best brick sealer for exposed brick walls.
MasonryDefender Brick Sealer Satin Sheen, Water-Based, Reduces Dust (1 gal, 2-Pack)
1MasonryDefender’s satin brick sealer is made to lock down dusty brick and make it easier to clean.
👍 Pros & Cons
Pros
- Listed as reducing brick dust
- Easy-clean surface
- Water-based
Cons
- Satin sheen changes the look slightly
- Film-forming, less breathable
📄 Detailed Review
- Type: Water-based film sealer
- Finish: Satin
- Base: Water-based
- Best for: Interior brick, dusty brick, easy cleaning
Interior exposed brick often sheds dust; a film-forming sealer binds the surface.
Test a hidden area to check sheen and color.
Prosoco Sure Klean Weather Seal Siloxane PD Water Repellent (1 gal)
2Prosoco’s Siloxane PD is a professional penetrating water repellent for brick and masonry walls.
👍 Pros & Cons
Pros
- Pro brand used on brick facades
- Breathable, does not trap moisture
- Natural, non-glossy look
Cons
- Not a stain or color
- Needs dry, clean brick
📄 Detailed Review
- Type: Penetrating siloxane
- Finish: Invisible / natural look
- Base: Water-based
- Best for: Exterior brick and masonry walls
Penetrating siloxanes soak into masonry and make it shed water while still letting vapor escape, which is why they are favored for exterior brick and chimneys.
Apply to dry, clean brick and follow the label’s saturation directions.
Drylok Clear Latex Masonry Waterproof Sealer (1 gal)
3Drylok Clear is a clear latex sealer for interior basement masonry where you do not want a painted look.
👍 Pros & Cons
Pros
- Clear, keeps masonry color
- Brush, roll or spray
- From a basement waterproofing brand
Cons
- Not for active leaks
- Apply above 50°F per listing
📄 Detailed Review
- Type: Clear latex waterproof sealer
- Finish: Clear
- Base: Latex
- Best for: Basement block and brick walls
It is designed to stop dampness on masonry walls while keeping the block or brick color visible.
Fix drainage and cracks first.
Rust-Oleum Seal-Krete Original All-Purpose Waterproofer (1 gal)
4Seal-Krete Original is an all-purpose water-based waterproofer for masonry.
👍 Pros & Cons
Pros
- Widely available brand
- Water-based
- Satin finish
Cons
- Satin film may slightly darken
- Less breathable than siloxane
📄 Detailed Review
- Type: Water-based waterproofer
- Finish: Satin clear
- Base: Water-based
- Best for: Concrete, brick, masonry
It forms a satin film, which adds stain resistance but changes the look more than a penetrating sealer.
Test first on a hidden spot.
Max Guard Water-Based Penetrating Stone Sealer (Repels Oil & Water, Low Odor)
5Max Guard is a water-based penetrating sealer listed to repel both oil and water with low odor.
👍 Pros & Cons
Pros
- Listed to repel oil as well as water
- Low odor, water-based
- Natural appearance
Cons
- Smaller brand
- Reapply over time
📄 Detailed Review
- Type: Water-based penetrating
- Finish: Natural appearance
- Base: Water-based, low odor
- Best for: Backsplashes, stone, brick
Oil repellency is the key feature for brick behind a stove or on a kitchen backsplash.
Wipe spills quickly even after sealing.
Chapin 25012 1-Gallon Clean ’N Seal Poly Deck Sprayer
6A compact 1-gallon version for small walls, chimneys and touch-ups.
👍 Pros & Cons
Pros
- Compact and light
- Made for sealers
- Easy to carry on ladders
Cons
- Frequent refills on big jobs
- Poly seals
📄 Detailed Review
- Capacity: 1 gallon
- Tank: Poly
- Best for: Small brick walls and chimneys
Lighter sprayers are easier to manage on ladders.
Never overfill above the line.
How We Chose the Best Brick Sealer for Exposed Brick
To choose the best brick sealer for exposed brick, we compared how each sealer affects color and sheen, dust binding, stain resistance and suitability for indoor use with water-based formulas.
Use water-based sealers indoors and ventilate, following the EPA guide to VOCs indoors.
Product details in this guide come from manufacturer specifications and patterns in verified owner feedback; we do not claim hands-on testing we have not done. Read more on our How We Test page.
Buying Guide: Best Brick Sealer for Exposed Brick
Tips for choosing the best brick sealer for exposed brick.
Decide the finish
Penetrating keeps the raw look; satin film controls dust and is easier to wipe.
Test for darkening
Every sealer changes brick slightly. Test on a hidden section and let it dry.
Clean old brick first
Remove dust, paint splatter and efflorescence before sealing.
Repoint soft mortar
Crumbling joints keep dusting even after sealing; repoint first.
Indoor ventilation
Choose water-based products and keep windows open.
Matte stays authentic
Avoid gloss indoors; it looks wet and plastic.
Sealing an Exposed Brick Wall
Natural results.
- Vacuum and clean the wall.
- Repoint loose joints.
- Test sealer on a hidden patch.
- Apply thin coats and back-brush.
Questions about the best brick sealer for exposed brick:
Frequently Asked Questions
What is the best brick sealer for exposed brick?
The best brick sealer for exposed brick is MasonryDefender’s satin sealer for dusty walls, or Prosoco Siloxane PD for an invisible finish.
Should I seal interior exposed brick?
Sealing reduces dust and makes cleaning easier.
Will sealer make brick look wet?
Penetrating and matte sealers look natural; gloss looks wet.
How many coats?
Usually one or two thin coats.
Can I paint brick later if sealed?
Sealers can affect paint adhesion; check the label.
Final Verdict
Our final pick for the best brick sealer for exposed brick is the MasonryDefender Satin Brick Sealer. Choose the Prosoco Siloxane PD if you want an invisible natural finish, or the Drylok Clear Masonry Sealer for a clear option.
Related Guides
More brick sealer guides:
- Best Faux Brick on Amazon
- Best Brick Sealer for Humid Climates
- Best Brick Sealer for Rainy Climates
- Best Brick Sealer for Reclaimed Brick
- Best Brick Sealer for Thin Brick
Product details are based on manufacturer specifications at the time of writing. Prices and availability change often, so check Amazon for the latest price.
