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Asphalt, Concrete & MasonryBathroom PlumbingCaulking & SealantsEmergency SuppliesExterior PaintGreat StuffInsulationInterior PaintPaint PrimersPaint Supplies & ToolsProjectsRoofingSealants, Fillers and AdhesivesSpecialty PaintSpray PaintStorm & Flood PrepTile Tools & MaterialsWaterproofers and SealersWinter PrepWood Stains, Coatings & Finishes
Block Sealer(382)
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 $49.77
Sponsored
From$4977
Seal it Green Extreme Grout Sealer and Tile Sealant Heavy Duty Clear Stain Blocker Zero VOC Non Toxic Granite Sealer Half Gallon
44 out of 5 Stars. 4 reviews
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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
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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
354.4 out of 5 Stars. 35 reviews
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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
1 gal UGL 27513 White Drylok Original Concrete & Masonry Waterproofer $56.37
$5637
current price $56.371 gal UGL 27513 White Drylok Original Concrete & Masonry Waterproofer
164.7 out of 5 Stars. 16 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
37784.6 out of 5 Stars. 3778 reviews
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Best seller Loctite Pl Polyurethane Sealant Concrete Non-Sag, Pack of 1, Gray 10 fl oz Cartridge From $10.99
6 options
Available in additional 6 optionsFrom$1099
Loctite Pl Polyurethane Sealant Concrete Non-Sag, Pack of 1, Gray 10 fl oz Cartridge
1574.3 out of 5 Stars. 157 reviews
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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
16314.5 out of 5 Stars. 1631 reviews
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United Gilsonite Drylok Extreme Masonry Waterproofer Concrete Sealer $59.61
$5961
current price $59.61United Gilsonite Drylok Extreme Masonry Waterproofer Concrete Sealer
214.2 out of 5 Stars. 21 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
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
2384.3 out of 5 Stars. 238 reviews
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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
1354.5 out of 5 Stars. 135 reviews
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Quikrete Mortar Repair 10 Oz Pack of 1
2 options
Available in additional 2 optionsQuikrete Mortar Repair 10 Oz Pack of 1
164.8 out of 5 Stars. 16 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
12064.5 out of 5 Stars. 1206 reviews
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UGL - Drylok - Gray -Basement & Masonry Waterproofer - for Stopping Water Leaks & Dampness - Interior - Exterior Latex Base - Sandy Texture, Tintable 1 Gallon $52.84
$5284
current price $52.84UGL - Drylok - Gray -Basement & Masonry Waterproofer - for Stopping Water Leaks & Dampness - Interior - Exterior Latex Base - Sandy Texture, Tintable 1 Gallon
114.3 out of 5 Stars. 11 reviews
Masonry Defender, Satin Acrylic, Clear Reducing Brick Dust Industrial Sealant, 8.75 lbs 1 Gal $37.49
$3749
current price $37.49Masonry Defender, Satin Acrylic, Clear Reducing Brick Dust Industrial Sealant, 8.75 lbs 1 Gal
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
14264.7 out of 5 Stars. 1426 reviews
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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
944.5 out of 5 Stars. 94 reviews
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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 $16.78
Sponsored
From$1678
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
Quikrete Gray Mortar Sealant 5.5 oz $9.20 Was $36.47
Now$920
current price Now $9.20, Was $36.47$36.47
Quikrete Gray Mortar Sealant 5.5 oz
124.8 out of 5 Stars. 12 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
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
11814.4 out of 5 Stars. 1181 reviews
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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
354.4 out of 5 Stars. 35 reviews
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Drylok Clear Latex Masonry Waterproof Sealer 1 gal. $47.49
$4749
current price $47.49Drylok Clear Latex Masonry Waterproof Sealer 1 gal.
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
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
GET SERIOUS Paver Sealer Super Strong Concrete Paver Sealer and Sand Lock All-in-One. Water Based Wet Look Sealant for Cement, Brick, Natural Stone, Slate, Bluestone, Patio, Driveway. (Quart)
3 options
Available in additional 3 optionsGET SERIOUS Paver Sealer Super Strong Concrete Paver Sealer and Sand Lock All-in-One. Water Based Wet Look Sealant for Cement, Brick, Natural Stone, Slate, Bluestone, Patio, Driveway. (Quart)
83.8 out of 5 Stars. 8 reviews
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Rain Guard Concrete Sealer Concentrate | Makes 1 Gallon | Natural Finish | Deep Penetrating Protection Against Water and Salt Damage for All Concrete Surfaces | Silane/Siloxane Waterproofer From $16.14
5 options
Available in additional 5 optionsFrom$1614
Rain Guard Concrete Sealer Concentrate | Makes 1 Gallon | Natural Finish | Deep Penetrating Protection Against Water and Salt Damage for All Concrete Surfaces | Silane/Siloxane Waterproofer
504.3 out of 5 Stars. 50 reviews
Sakrete Tube Siliconized Concrete & Mortar Repair Industrial Sealant, 10.3 Oz. $10.91
$1091
current price $10.91Sakrete Tube Siliconized Concrete & Mortar Repair Industrial Sealant, 10.3 Oz.
64.7 out of 5 Stars. 6 reviews
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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
3054.3 out of 5 Stars. 305 reviews
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Best seller WaterGuard 11 oz. Clear Exterior Waterproofing Wood Sealer Spray From $6.48
3 options
Available in additional 3 optionsFrom$648
WaterGuard 11 oz. Clear Exterior Waterproofing Wood Sealer Spray
724.4 out of 5 Stars. 72 reviews
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Thompson's WaterSeal Transparent Wood Sealer, Desert Tan, 1 Gallon From $25.94
From$2594
Thompson's WaterSeal Transparent Wood Sealer, Desert Tan, 1 Gallon
2854.4 out of 5 Stars. 285 reviews
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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 $16.78
4 options
Available in additional 4 optionsFrom$1678
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
White, Zinsser HIDZ Multi-Purpose Primer & Sealer-373358, 1 gal $23.98 Was $40.90 $23.98/gl
Now$2398
current price Now $23.98, Was $40.90$40.90
$23.98/gl
White, Zinsser HIDZ Multi-Purpose Primer & Sealer-373358, 1 gal
604.8 out of 5 Stars. 60 reviews
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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
184.5 out of 5 Stars. 18 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
2744.5 out of 5 Stars. 274 reviews
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Ames Block & Wall Liquid Rubber Coating 5 Gallon
Ames Block & Wall Liquid Rubber Coating 5 Gallon
33.7 out of 5 Stars. 3 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
Siloxa-Tek 8500 Ready to Use - 1 Gallon Penetrating Concrete Sealer, Water and Salt . Clear, Water-Based DOT Approved Silane/Siloxane for Concrete, Brick, Masonry & Pavers $77.99
$7799
current price $77.99Siloxa-Tek 8500 Ready to Use - 1 Gallon Penetrating Concrete Sealer, Water and Salt . Clear, Water-Based DOT Approved Silane/Siloxane for Concrete, Brick, Masonry & Pavers
UGL Drylok Clear Natural Look Concrete Sealer - Acrylic Masonry Sealer - 1 Gal Exterior Wood Surfaces, UV-Resistant Formula $48.27
$4827
current price $48.27UGL 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 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
3724.4 out of 5 Stars. 372 reviews
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United Gilsonite Lab Drylok Basement & Masonry Waterproofer Concrete Sealer - Single Pack $61.62
$6162
current price $61.62United Gilsonite Lab Drylok Basement & Masonry Waterproofer Concrete Sealer - Single Pack
GOODTAKE Polymer Cement & Concrete Waterproof Coating Concrete Sealer for Roof, Basement, Bathroom & Kitchen Fast-Curing, Permanent Waterproof Repair for Concrete & Masonry - 16 oz (500 ml) $27.99
$2799
current price $27.99GOODTAKE Polymer Cement & Concrete Waterproof Coating Concrete Sealer for Roof, Basement, Bathroom & Kitchen Fast-Curing, Permanent Waterproof Repair for Concrete & Masonry - 16 oz (500 ml)
Ames Research Laboratories BWRF5 Water Base Block & Wall Liquid Rubber Coating - 5 Gallon, White $179.00 Was $225.71
Now$17900
current price Now $179.00, Was $225.71$225.71
Ames Research Laboratories BWRF5 Water Base Block & Wall Liquid Rubber Coating - 5 Gallon, White
Miracle Sealants Grout Sealer, 6 oz- GRTSLR6OZ12 From $11.29
5 options
Available in additional 5 optionsFrom$1129
Miracle Sealants Grout Sealer, 6 oz- GRTSLR6OZ12
564.3 out of 5 Stars. 56 reviews
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