Asphalt, Concrete & MasonryBathroom PlumbingCar Emergency SuppliesCaulking & SealantsEmergency SuppliesExterior PaintGreat StuffInsulationInterior PaintPaint PrimersPaint Supplies & ToolsProjectsRoofingSealants, Fillers and AdhesivesSpecialty PaintSpray PaintStorm & Flood PrepTile Tools & MaterialsWaterproofers and SealersWinter PrepWood Stains, Coatings & Finishes
Sort by|
Asphalt, Concrete & MasonryBathroom PlumbingCar Emergency SuppliesCaulking & 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(391)
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 Quart 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 Quart
44 out of 5 Stars. 4 reviews
Save with
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
Save with
Seal Spray Fire/Flame, Smoke, and Sound Block 23.4oz Gun Foam - Case Of 12 $134.99 Was $152.01
Sponsored
Now$13499
current price Now $134.99, Was $152.01$152.01
Seal 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
Save with
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
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
Save with
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
In 50+ people's carts 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
Save with
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
2384.3 out of 5 Stars. 238 reviews
Save with
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
Save with
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
Rain Guard Concrete Sealer Concentrate, Makes 2 Gallons, Natural Finish Waterproofer for Concrete Surfaces, Deep Penetrating Protection Against Water & Salt Damage From $18.99
Sponsored
From$1899
Rain Guard Concrete Sealer Concentrate, Makes 2 Gallons, Natural Finish Waterproofer for Concrete Surfaces, Deep Penetrating Protection Against Water & Salt Damage
504.3 out of 5 Stars. 50 reviews
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
Best seller Loctite Pl Polyurethane Sealant Concrete Non-Sag, Pack of 1, Gray 10 fl oz Cartridge From $14.00
6 options
Available in additional 6 optionsFrom$1400
Loctite Pl Polyurethane Sealant Concrete Non-Sag, Pack of 1, Gray 10 fl oz Cartridge
1574.3 out of 5 Stars. 157 reviews
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
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
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
Save with
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
Save with
UGL - Drylok - Gray -Basement & Masonry Waterproofer - for Stopping Water Leaks & Dampness - Interior - Exterior Latex Base - Sandy Texture, Tintable 1 Gallon $52.88
$5288
current price $52.88UGL - 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
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
Save with
Brick Sealer, Natural Finish, Concentrate Makes 1 Gallon From $18.99
Sponsored
From$1899
Brick Sealer, Natural Finish, Concentrate Makes 1 Gallon
94.6 out of 5 Stars. 9 reviews
Drylok Clear Latex Masonry Waterproof Sealer 1 gal. $39.50
$3950
current price $39.50Drylok Clear Latex Masonry Waterproof Sealer 1 gal.
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
Save with
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
Save with
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
Save with
Top rated for drying time 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
Save with
Ames Block & Wall Liquid Rubber Coating 5 Gallon
Ames Block & Wall Liquid Rubber Coating 5 Gallon
33.7 out of 5 Stars. 3 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
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
Save with
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
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 $18.99
5 options
Available in additional 5 optionsFrom$1899
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
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
Save with
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
2854.4 out of 5 Stars. 285 reviews
Save with
Brick Sealer, Natural Finish From $16.78
4 options
Available in additional 4 optionsFrom$1678
Brick Sealer, Natural Finish
74.9 out of 5 Stars. 7 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
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
Save with
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
UGL UG327495 Drylok White Extreme Masonry Waterproofer $291.76
$29176
current price $291.76UGL UG327495 Drylok White Extreme Masonry Waterproofer
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
Save with
GE Big Gaps & Cracks Insulating Foam, Pack of 1, Yellow 12 oz Can Was $19.00
6 options
Available in additional 6 optionsGE Big Gaps & Cracks Insulating Foam, Pack of 1, Yellow 12 oz Can
17564.4 out of 5 Stars. 1756 reviews
Save with
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
Save with
Brick Sealer, Natural Finish, Concentrate Makes 1 Gallon From $18.99
2 options
Available in additional 2 optionsFrom$1899
Brick Sealer, Natural Finish, Concentrate Makes 1 Gallon
94.6 out of 5 Stars. 9 reviews
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
Save with
UGL Drylok Clear Natural Look Concrete Sealer - Acrylic Masonry Sealer - 1 Gal Exterior Wood Surfaces, UV-Resistant Formula $43.62
$4362
current price $43.62UGL Drylok Clear Natural Look Concrete Sealer - Acrylic Masonry Sealer - 1 Gal Exterior Wood Surfaces, UV-Resistant Formula
45 out of 5 Stars. 4 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
8625 out of 5 Stars. 862 reviews
DOMINATOR LG Low Gloss Concrete and Paver Sealer, Acrylic Water-Based Wet Look, 1 Gallon From $79.00
3 options
Available in additional 3 optionsFrom$7900
DOMINATOR LG Low Gloss Concrete and Paver Sealer, Acrylic Water-Based Wet Look, 1 Gallon
3904.8 out of 5 Stars. 390 reviews
Popular in Block Sealer
Related Products
Sika 188024 10.3 oz Sikaflex 505UV High Performance Exterior Grade Sealant, 300 ml Cartridge - White
Sika 188024 10.3 oz Sikaflex 505UV High Performance Exterior Grade Sealant, 300 ml Cartridge - White$25.99current price $25.9936-Pack of 10.1 oz Sika 654546 Aluminum Gray Sikaflex All Purpose Construction Sealant
36-Pack of 10.1 oz Sika 654546 Aluminum Gray Sikaflex All Purpose Construction Sealant$264.07current price $264.07Sikaflex 515309 Construction Sealant, White, 10.1-Oz. - Quantity 12
Sikaflex 515309 Construction Sealant, White, 10.1-Oz. - Quantity 12$17.20current price $17.20High Teck Products 7150-1 High Solids Universal Urethane Clear, 1 gal, Clear, Liquid, 4.7 lb/gal VOC, 4:1 Mixing
High Teck Products 7150-1 High Solids Universal Urethane Clear, 1 gal, Clear, Liquid, 4.7 lb/gal VOC, 4:1 Mixing$130.65current price $130.65BASF Masterseal NP-1 Polyurethane Sealant - Black - 10.1 Fl. Oz, Pack Of 1
BASF Masterseal NP-1 Polyurethane Sealant - Black - 10.1 Fl. Oz, Pack Of 1$16.61current price $16.61Eastwood Flexible Insulated Waterproof Beige Seam Sealer 10.1 oz 12 Pack
Eastwood Flexible Insulated Waterproof Beige Seam Sealer 10.1 oz 12 Pack$279.99current price $279.99REFLECTIX INC Foam Sill Sealer, White, 7.5-In. x 50-Ft. CF70550
REFLECTIX INC Foam Sill Sealer, White, 7.5-In. x 50-Ft. CF70550$23.21current price $23.21Sikaflex 90959/C437527 Non-Staining Construction Sealant, 10.1 oz, Cartridge, Limestone, Paste
Sikaflex 90959/C437527 Non-Staining Construction Sealant, 10.1 oz, Cartridge, Limestone, Paste$14.93current price $14.93Gorilla Waterproof Patch & Seal Rubberized Sealant Paste, Black, 1lb Can Bulk Pack of 6 — Residential Use, Standard Application
Gorilla Waterproof Patch & Seal Rubberized Sealant Paste, Black, 1lb Can Bulk Pack of 6 — Residential Use, Standard Application$100.08current price $100.08OSI Quad Advanced Formula Window, Door and Siding Sealant, 10 Ounce Cartridge, Brown 201 1637192 Pack of 3
OSI Quad Advanced Formula Window, Door and Siding Sealant, 10 Ounce Cartridge, Brown 201 1637192 Pack of 3$33.29current price $33.29Sikaflex 15LM, Black, Low-Modulus Elastomeric Sealant, 300ml, Cartridge
Sikaflex 15LM, Black, Low-Modulus Elastomeric Sealant, 300ml, Cartridge$22.00current price $22.00DAP White Siding and Window Sealant, 10.1 oz. Cartridge - 00801 Pack of 5
DAP White Siding and Window Sealant, 10.1 oz. Cartridge - 00801 Pack of 5$48.83current price $48.83AP Products 017-415763 - Sikaflex 505 10 oz. Polymer Non-Sag White Sealant
AP Products 017-415763 - Sikaflex 505 10 oz. Polymer Non-Sag White Sealant$27.97current price $27.97