Asphalt, Concrete & MasonryCar Emergency SuppliesCaulking & SealantsEmergency SuppliesExterior PaintGreat StuffInsulationInterior PaintPaint PrimersPaint Supplies & ToolsPlumbing Tools & AccessoriesProjectsRoofingSealants, Fillers and AdhesivesSpecialty PaintSpray PaintStorm & Flood PrepTile Tools & MaterialsWaterproofers and SealersWinter PrepWood Stains, Coatings & Finishes
Sort by|
Asphalt, Concrete & MasonryCar Emergency SuppliesCaulking & SealantsEmergency SuppliesExterior PaintGreat StuffInsulationInterior PaintPaint PrimersPaint Supplies & ToolsPlumbing Tools & AccessoriesProjectsRoofingSealants, Fillers and AdhesivesSpecialty PaintSpray PaintStorm & Flood PrepTile Tools & MaterialsWaterproofers and SealersWinter PrepWood Stains, Coatings & Finishes
Block Sealer(413)
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
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
Save with
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
38034.6 out of 5 Stars. 3803 reviews
Save with
MOROSO 35500 16 oz. Engine Block Sealant $38.66
$3866
current price $38.66MOROSO 35500 16 oz. Engine Block Sealant
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
2434.3 out of 5 Stars. 243 reviews
Save with
Permatex 82180 Ultra Black RTV Silicone Gasket Maker - 1 Pack $15.51
$1551
current price $15.51Permatex 82180 Ultra Black RTV Silicone Gasket Maker - 1 Pack
15 out of 5 Stars. 1 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
1364.5 out of 5 Stars. 136 reviews
Save with
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
17084.5 out of 5 Stars. 1708 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 $17.09
Sponsored
From$1709
Rain Guard Concrete Sealer Concentrate, Makes 2 Gallons, Natural Finish Waterproofer for Concrete Surfaces, Deep Penetrating Protection Against Water & Salt Damage
514.2 out of 5 Stars. 51 reviews
United Gilsonite Drylok Extreme Masonry Waterproofer Concrete Sealer $59.99
$5999
current price $59.99United Gilsonite Drylok Extreme Masonry Waterproofer Concrete Sealer
214.2 out of 5 Stars. 21 reviews
50g/85g Automotive Gasket Sealant Liquid Gasket Sealer Car Engine Sealants Gasket-Free Resistance High Temperature Sealant From $5.39
From$539
50g/85g Automotive Gasket Sealant Liquid Gasket Sealer Car Engine Sealants Gasket-Free Resistance High Temperature Sealant
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
994.4 out of 5 Stars. 99 reviews
Save with
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
12184.5 out of 5 Stars. 1218 reviews
Save with
EDHITNR Engine Sealant Kit 40g with Application Tools, Automotive Motorcycle Gasket Sealer for Leak Repair, Waterproof Fast Drying Silicone Sealant for Engine Parts $6.89 Was $8.69
Now$689
current price Now $6.89, Was $8.69$8.69
EDHITNR Engine Sealant Kit 40g with Application Tools, Automotive Motorcycle Gasket Sealer for Leak Repair, Waterproof Fast Drying Silicone Sealant for Engine Parts
Quikrete Mortar Repair 10 Oz Pack of 1
2 options
Available in additional 2 optionsQuikrete Mortar Repair 10 Oz Pack of 1
174.8 out of 5 Stars. 17 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
354.4 out of 5 Stars. 35 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
14424.7 out of 5 Stars. 1442 reviews
Save with
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
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
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
11784.4 out of 5 Stars. 1178 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
744.5 out of 5 Stars. 74 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
Best seller 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
2754.5 out of 5 Stars. 275 reviews
Save with
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
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 $17.09
5 options
Available in additional 5 optionsFrom$1709
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
514.2 out of 5 Stars. 51 reviews
Ames Block & Wall Liquid Rubber Coating 5 Gallon Was $203.57
Ames Block & Wall Liquid Rubber Coating 5 Gallon
33.7 out of 5 Stars. 3 reviews
Quikrete Gray Mortar Sealant 5.5 oz $9.15 Was $36.47
Now$915
current price Now $9.15, Was $36.47$36.47
Quikrete Gray Mortar Sealant 5.5 oz
124.8 out of 5 Stars. 12 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
3134.3 out of 5 Stars. 313 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
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
114.3 out of 5 Stars. 11 reviews
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
2834.4 out of 5 Stars. 283 reviews
Save with
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
634.8 out of 5 Stars. 63 reviews
Save with
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)
United Gilsonite Lab Drylok Concrete Sealer Protector - Pack of 8 $1,832.12
$1,83212
current price $1,832.12United Gilsonite Lab Drylok Concrete Sealer Protector - Pack of 8
Drylok Clear Latex Masonry Waterproof Sealer 1 gal. $50.79
$5079
current price $50.79Drylok Clear Latex Masonry Waterproof Sealer 1 gal.
15 out of 5 Stars. 1 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
Zinsser B-I-N Advanced Clear Odor Blocking Sealer for All Surfaces, 1 gal - Case of 2 $97.21
$9721
current price $97.21Zinsser B-I-N Advanced Clear Odor Blocking Sealer for All Surfaces, 1 gal - Case of 2
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
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
17524.4 out of 5 Stars. 1752 reviews
DOMINATOR Stone Plus Gloss Satin Stone Sealer, Clay Brick Sealer, Acrylic Water Based, 1 gal From $75.05
3 options
Available in additional 3 optionsFrom$7505
DOMINATOR Stone Plus Gloss Satin Stone Sealer, Clay Brick Sealer, Acrylic Water Based, 1 gal
3914.8 out of 5 Stars. 391 reviews
United Gilsonite White Masonry Waterproofer Industrial Sealant, 42 lbs $169.00
$16900
current price $169.00United Gilsonite White Masonry Waterproofer Industrial Sealant, 42 lbs
United Gilsonite Lab Drylok Concrete Sealer Protector - Pack of 6 $1,463.79
$1,46379
current price $1,463.79United Gilsonite Lab Drylok Concrete Sealer Protector - Pack of 6
United Gilsonite Lab Drylok Clear Floor & Wall Masonry Waterproofer - Pack of 12 $2,974.45
$2,97445
current price $2,974.45United Gilsonite Lab Drylok Clear Floor & Wall Masonry Waterproofer - Pack of 12
United Gilsonite Lab Drylok Concrete Sealer Protector - Single Pack $48.52
$4852
current price $48.52United Gilsonite Lab Drylok Concrete Sealer Protector - Single Pack
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$263.99current price $263.99Sikaflex 515309 Construction Sealant, White, 10.1-Oz. - Quantity 12
Sikaflex 515309 Construction Sealant, White, 10.1-Oz. - Quantity 12$17.61current price $17.61High 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$14.87current price $14.87Gorilla 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