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Asphalt, Concrete & MasonryCaulking & SealantsEmergency SuppliesExterior PaintGreat StuffInsulationPaint PrimersPaint Supplies & ToolsPlumbing Tools & AccessoriesProjectsRoofingSealants, Fillers and AdhesivesSpecialty PaintSpray PaintStorm & Flood PrepTile Tools & MaterialsWaterproofers and SealersWinter PrepWood Stains, Coatings & Finishes
Block Sealer(418)
Uses item details. Price when purchased online
Seal it Green Extreme Grout Sealer and Tile Sealant Heavy Duty Clear Stain Blocker Zero VOC Non Toxic Granite Sealer Half Gallon From $48.33
Sponsored
From$4833
Seal it Green Extreme Grout Sealer and Tile Sealant Heavy Duty Clear Stain Blocker Zero VOC Non Toxic Granite Sealer Half Gallon
54.2 out of 5 Stars. 5 reviews
Black Diamond Granite Sealer – Seals and Protects Stone Countertops Without Changing Appearance – Guards Against Food, Oil & Water Stains – For Granite, Marble, Travertine & More – 1 Gallon $96.65
Sponsored
$9665
current price $96.65Black Diamond Granite Sealer – Seals and Protects Stone Countertops Without Changing Appearance – Guards Against Food, Oil & Water Stains – For Granite, Marble, Travertine & More – 1 Gallon
Seal Spray Fire/Flame, Smoke, and Sound Block 23.4oz Gun Foam - Case Of 12 $134.99
Sponsored
$13499
current price $134.99Seal Spray Fire/Flame, Smoke, and Sound Block 23.4oz Gun Foam - Case Of 12
33.7 out of 5 Stars. 3 reviews
Stormdry Brick Sealer (1.5 Gallon) - Clear Exterior Brick, Stone, Concrete & Masonry Waterproofer - 25-Year Certified Waterproofing Protection Against Penetrating Damp From $44.99
Sponsored
From$4499
Stormdry Brick Sealer (1.5 Gallon) - Clear Exterior Brick, Stone, Concrete & Masonry Waterproofer - 25-Year Certified Waterproofing Protection Against Penetrating Damp
374.5 out of 5 Stars. 37 reviews
Color Enhancer Sealer for All-Natural Stone and Pavers. Marble, Travertine, Limestone, Granite, Slate, Concrete, Grout, Brick, Block. (Trial) From $9.98
3 options
Available in additional 3 optionsFrom$998
Color Enhancer Sealer for All-Natural Stone and Pavers. Marble, Travertine, Limestone, Granite, Slate, Concrete, Grout, Brick, Block. (Trial)
134.1 out of 5 Stars. 13 reviews
Best seller KILZ 2® All-Purpose Interior/Exterior Water-Based Stainblocking Primer, Quart From $9.97
5 options
Available in additional 5 optionsFrom$997
KILZ 2® All-Purpose Interior/Exterior Water-Based Stainblocking Primer, Quart
38514.6 out of 5 Stars. 3851 reviews
Best seller Olympic Quick Cover 1 Gallon Clear Exterior Wood Sealer $14.84 $14.84/gl
$1484
current price $14.84$14.84/gl
Olympic Quick Cover 1 Gallon Clear Exterior Wood Sealer
1444.4 out of 5 Stars. 144 reviews
500+ bought since yesterday GE Big Gaps & Cracks Insulating Foam, Pack of 1, Yellow 12 oz Can From $4.48
11 options
Available in additional 11 optionsFrom$448
GE Big Gaps & Cracks Insulating Foam, Pack of 1, Yellow 12 oz Can
17714.5 out of 5 Stars. 1771 reviews
Best seller Clear-Seal, Seal-Krete Gloss Concrete Protective Sealer-607001, Gallon From $38.97
2 options
Available in additional 2 optionsFrom$3897
Clear-Seal, Seal-Krete Gloss Concrete Protective Sealer-607001, Gallon
2484.3 out of 5 Stars. 248 reviews
1 gal UGL 27513 White Drylok Original Concrete & Masonry Waterproofer $56.89
$5689
current price $56.891 gal UGL 27513 White Drylok Original Concrete & Masonry Waterproofer
174.7 out of 5 Stars. 17 reviews
Seal Spray Fire/Flame, Smoke, and Sound Block 23.4oz Gun Foam - Case Of 12, 1 Gun, 1 Can Of Cleaner $174.99 Was $204.00
Sponsored
Now$17499
current price Now $174.99, Was $204.00$204.00
Seal Spray Fire/Flame, Smoke, and Sound Block 23.4oz Gun Foam - Case Of 12, 1 Gun, 1 Can Of Cleaner
Rainguard Water Sealers Brick Sealer, Penetrating Protection Against Rain and Moisture Damage, For All Brick and Mortar Surfaces, Silane/Siloxane Waterproofer, Natural Finish, Makes 1 Gallon From $18.99
Sponsored
From$1899
Rainguard Water Sealers Brick Sealer, Penetrating Protection Against Rain and Moisture Damage, For All Brick and Mortar Surfaces, Silane/Siloxane Waterproofer, Natural Finish, Makes 1 Gallon
94.6 out of 5 Stars. 9 reviews
United Gilsonite Drylok Extreme Masonry Waterproofer Concrete Sealer $61.52
$6152
current price $61.52United Gilsonite Drylok Extreme Masonry Waterproofer Concrete Sealer
234.2 out of 5 Stars. 23 reviews
Quikrete Mortar Repair 10 Oz Pack of 1
2 options
Available in additional 2 optionsQuikrete Mortar Repair 10 Oz Pack of 1
154.7 out of 5 Stars. 15 reviews
100+ bought since yesterday Würth 12oz Expanding Foam Sealant for Big Gaps up to 3 inches - Insulating Spray Foam From $4.48
6 options
Available in additional 6 optionsFrom$448
Würth 12oz Expanding Foam Sealant for Big Gaps up to 3 inches - Insulating Spray Foam
12404.5 out of 5 Stars. 1240 reviews
Stormdry Brick Sealer (1 Quart) - Clear Brick, Stone, Concrete & Masonry Waterproofer - 25-Year Certified Waterproofing Protection Against Penetrating Damp From $44.99
2 options
Available in additional 2 optionsFrom$4499
Stormdry Brick Sealer (1 Quart) - Clear Brick, Stone, Concrete & Masonry Waterproofer - 25-Year Certified Waterproofing Protection Against Penetrating Damp
374.5 out of 5 Stars. 37 reviews
Best seller Olympic Quick Cover 1 Gallon Clear Exterior Multi-Surface Sealer $13.84 $13.84/gl
$1384
current price $13.84$13.84/gl
Olympic Quick Cover 1 Gallon Clear Exterior Multi-Surface Sealer
1084.5 out of 5 Stars. 108 reviews
Hapco 616, Block Sealer Industrial Sealant $34.99
$3499
current price $34.99Hapco 616, Block Sealer Industrial Sealant
15 out of 5 Stars. 1 reviews
Quikrete Gray Mortar Sealant 5.5 oz $10.61 Was $36.47
Now$1061
current price Now $10.61, Was $36.47$36.47
Quikrete Gray Mortar Sealant 5.5 oz
124.8 out of 5 Stars. 12 reviews
Zinsser WaterTite Polyurethane Sealant for Concrete and Masonry-5091, 10.1 oz $16.09 $1.59/oz
$1609
current price $16.09$1.59/oz
Zinsser WaterTite Polyurethane Sealant for Concrete and Masonry-5091, 10.1 oz
384.9 out of 5 Stars. 38 reviews
Rainguard Brick Sealer - Ready to Use Penetrating Water-Based Silane Siloxane Waterproofer for Brick, Mortar & Masonry - Water and Salt Repellent - Natural Finish, 1 Gallon From $17.62
Sponsored
From$1762
Rainguard Brick Sealer - Ready to Use Penetrating Water-Based Silane Siloxane Waterproofer for Brick, Mortar & Masonry - Water and Salt Repellent - Natural Finish, 1 Gallon
74.9 out of 5 Stars. 7 reviews
All-Purpose Super-Bonding Structural Sealant - Watertight Bonding and Sealing - UV Resistant, Above & Below Waterline- for Boats, Hulls, Decks & RVs,Pond Sealant-Black 10.1 oz From $22.99
Sponsored
From$2299
All-Purpose Super-Bonding Structural Sealant - Watertight Bonding and Sealing - UV Resistant, Above & Below Waterline- for Boats, Hulls, Decks & RVs,Pond Sealant-Black 10.1 oz
14 out of 5 Stars. 1 reviews
KILZ 3 Premium Multi-purpose Interior/Exterior Wall and Ceiling Primer - Water-Based 1 Gallon From $14.97
3 options
Available in additional 3 optionsFrom$1497
KILZ 3 Premium Multi-purpose Interior/Exterior Wall and Ceiling Primer - Water-Based 1 Gallon
14484.7 out of 5 Stars. 1448 reviews
Rainguard Brick Sealer Spray, Penetrating Water-Based Silane Siloxane Waterproofer, Water & Salt Repellent for Brick, Mortar & Masonry, Natural Finish, Ready to Use, 16 Oz From $17.62
4 options
Available in additional 4 optionsFrom$1762
Rainguard Brick Sealer Spray, Penetrating Water-Based Silane Siloxane Waterproofer, Water & Salt Repellent for Brick, Mortar & Masonry, Natural Finish, Ready to Use, 16 Oz
74.9 out of 5 Stars. 7 reviews
GE Gaps & Cracks Insulating Foam, Pack of 1, Yellow 12 oz Can From $4.48
6 options
Available in additional 6 optionsFrom$448
GE Gaps & Cracks Insulating Foam, Pack of 1, Yellow 12 oz Can
11794.4 out of 5 Stars. 1179 reviews
UGL - Drylok - Gray -Basement & Masonry Waterproofer - for Stopping Water Leaks & Dampness - Interior - Exterior Latex Base - Sandy Texture, Tintable 1 Gallon $52.81
$5281
current price $52.81UGL - Drylok - Gray -Basement & Masonry Waterproofer - for Stopping Water Leaks & Dampness - Interior - Exterior Latex Base - Sandy Texture, Tintable 1 Gallon
144.1 out of 5 Stars. 14 reviews
Thompson's WaterSeal Transparent Wood Sealer, Chestnut Brown, 1 Gallon From $29.94
2 options
Available in additional 2 optionsFrom$2994
Thompson's WaterSeal Transparent Wood Sealer, Chestnut Brown, 1 Gallon
2804.5 out of 5 Stars. 280 reviews
Uni-Seal Max Concrete & Masonry Sealant - Water Based Siliconate, Clear, 1 Gal Residential Use, Standard Application $46.85
$4685
current price $46.85Uni-Seal Max Concrete & Masonry Sealant - Water Based Siliconate, Clear, 1 Gal Residential Use, Standard Application
Thompson's WaterSeal Transparent Wood Sealer, Natural Cedar, 1 Gallon From $25.94
From$2594
Thompson's WaterSeal Transparent Wood Sealer, Natural Cedar, 1 Gallon
2874.4 out of 5 Stars. 287 reviews
MasonryDefender Brick, Stone & Concrete Sealer - Transparent Waterproof Masonry Sealer - 2.5 Gallon $83.98
$8398
current price $83.98MasonryDefender Brick, Stone & Concrete Sealer - Transparent Waterproof Masonry Sealer - 2.5 Gallon
14 out of 5 Stars. 1 reviews
Ames Block & Wall Liquid Rubber Coating 5 Gallon $179.00 Was $203.57 $35.80/gl
Now$17900
current price Now $179.00, Was $203.57$203.57
$35.80/gl
Ames Block & Wall Liquid Rubber Coating 5 Gallon
33.7 out of 5 Stars. 3 reviews
Olympic Maximum 1 Gallon SC-1058 Oxford Brown Solid Color Exterior Stain and Sealer in One From $41.78
From$4178
Olympic Maximum 1 Gallon SC-1058 Oxford Brown Solid Color Exterior Stain and Sealer in One
4604.3 out of 5 Stars. 460 reviews
50+ bought since yesterday Thompson's WaterSeal Clear Wood Sealer, Clear, 1 Gallon
Thompson's WaterSeal Clear Wood Sealer, Clear, 1 Gallon
6514.5 out of 5 Stars. 651 reviews
Best seller WaterGuard 11 oz. Clear Exterior Waterproofing Wood Sealer Spray From $5.97
3 options
Available in additional 3 optionsFrom$597
WaterGuard 11 oz. Clear Exterior Waterproofing Wood Sealer Spray
804.5 out of 5 Stars. 80 reviews
Olympic Wood Protector Cedar Semi-Transparent Exterior Wood Stain and Sealer, 1 Gallon From $34.94
From$3494
Olympic Wood Protector Cedar Semi-Transparent Exterior Wood Stain and Sealer, 1 Gallon
3924.4 out of 5 Stars. 392 reviews
Rainguard Water Sealers Brick Sealer, Penetrating Protection Against Rain and Moisture Damage, For All Brick and Mortar Surfaces, Silane/Siloxane Waterproofer, Natural Finish, Makes 1 Gallon From $18.99
2 options
Available in additional 2 optionsFrom$1899
Rainguard Water Sealers Brick Sealer, Penetrating Protection Against Rain and Moisture Damage, For All Brick and Mortar Surfaces, Silane/Siloxane Waterproofer, Natural Finish, Makes 1 Gallon
94.6 out of 5 Stars. 9 reviews
Eco Advance Concrete/Masonry Siloxane Waterproofer, Liquid Concentrate, 16 oz $25.99
$2599
current price $25.99Eco Advance Concrete/Masonry Siloxane Waterproofer, Liquid Concentrate, 16 oz
84.9 out of 5 Stars. 8 reviews
UGL Drylok Clear Natural Look Concrete Sealer - Acrylic Masonry Sealer - 1 Gal Exterior Wood Surfaces, UV-Resistant Formula $30.49 Was $42.58
Now$3049
current price Now $30.49, Was $42.58$42.58
UGL Drylok Clear Natural Look Concrete Sealer - Acrylic Masonry Sealer - 1 Gal Exterior Wood Surfaces, UV-Resistant Formula
45 out of 5 Stars. 4 reviews
Olympic Wood Protector Cedar Solid Exterior Wood Stain and Sealer, 1 Gallon From $34.94
From$3494
Olympic Wood Protector Cedar Solid Exterior Wood Stain and Sealer, 1 Gallon
3324.3 out of 5 Stars. 332 reviews
DOMINATOR SG Plus High Gloss Concrete and Paver Sealer, Wet Look, Acrylic Water Based, 2.5 gal From $79.00
3 options
Available in additional 3 optionsFrom$7900
DOMINATOR SG Plus High Gloss Concrete and Paver Sealer, Wet Look, Acrylic Water Based, 2.5 gal
3934.8 out of 5 Stars. 393 reviews
GE Big Gaps & Cracks Insulating Foam, Pack of 1, Yellow 12 oz Can
6 options
Available in additional 6 optionsGE Big Gaps & Cracks Insulating Foam, Pack of 1, Yellow 12 oz Can
17524.4 out of 5 Stars. 1752 reviews
Foundation Armor 5 Gallon AR350 Wet Look Concrete Sealer and Paver Sealer $224.99 Was $249.75
Now$22499
current price Now $224.99, Was $249.75$249.75
Foundation Armor 5 Gallon AR350 Wet Look Concrete Sealer and Paver Sealer
8595 out of 5 Stars. 859 reviews
Ames Research Laboratories BWRF5 Water Base Block & Wall Liquid Rubber Coating - 5 Gallon, White $179.00 Was $207.90
Now$17900
current price Now $179.00, Was $207.90$207.90
Ames Research Laboratories BWRF5 Water Base Block & Wall Liquid Rubber Coating - 5 Gallon, White
Drylok Clear Latex Masonry Waterproof Sealer 1 gal. $43.94
$4394
current price $43.94Drylok Clear Latex Masonry Waterproof Sealer 1 gal.
15 out of 5 Stars. 1 reviews
2026 Upgraded Concrete Crack Sealant 100ml, Waterproof Repair Filler, Quick Dry Agent for Outdoor Driveway and Patio Surfaces $8.98 Was $10.00
Now$898
current price Now $8.98, Was $10.00$10.00
2026 Upgraded Concrete Crack Sealant 100ml, Waterproof Repair Filler, Quick Dry Agent for Outdoor Driveway and Patio Surfaces
WaterGuard 11 oz. Clear Multisurface Exterior Waterproofing Sealer Spray From $5.97
3 options
Available in additional 3 optionsFrom$597
WaterGuard 11 oz. Clear Multisurface Exterior Waterproofing Sealer Spray
644.5 out of 5 Stars. 64 reviews
Eco Advance Concrete/Masonry Siloxane Waterproofer, Ready-to-Use, 1 Gallon $30.39
$3039
current price $30.39Eco Advance Concrete/Masonry Siloxane Waterproofer, Ready-to-Use, 1 Gallon
194.4 out of 5 Stars. 19 reviews
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