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Asphalt, Concrete & MasonryCaulking & SealantsEmergency SuppliesExterior PaintGreat StuffInsulationInterior PaintPaint Supplies & ToolsPlumbing Tools & AccessoriesRoofingSealants, Fillers and AdhesivesSpecialty PaintSpray PaintStorm & Flood PrepWaterproofers and SealersWinter PrepWood Stains, Coatings & Finishes
Block Wall Sealer(227)
Uses item details. Price when purchased online
Sprayman Fire Block Gun Foam Sealant 20oz- 12 Pack Set From $25.99
Sponsored
From$2599
Sprayman Fire Block Gun Foam Sealant 20oz- 12 Pack Set
Clear Waterproof Sealant Coating, 2026 New Invisible Water-Based Agent for Indoor & Outdoor Surfaces, Leak Repair for Roofs, Walls & Terraces (1 Set)Z $19.99
Sponsored
$1999
current price $19.99Clear Waterproof Sealant Coating, 2026 New Invisible Water-Based Agent for Indoor & Outdoor Surfaces, Leak Repair for Roofs, Walls & Terraces (1 Set)Z
Clear Waterproof Sealant Coating, 2026 New Invisible Water-Based Agent for Indoor & Outdoor Surfaces, Leak Repair for Roofs, Walls & Terraces (2 Set)Z $26.99
Sponsored
$2699
current price $26.99Clear Waterproof Sealant Coating, 2026 New Invisible Water-Based Agent for Indoor & Outdoor Surfaces, Leak Repair for Roofs, Walls & Terraces (2 Set)Z
Clear Waterproof Sealant Coating, 2026 New Invisible Water-Based Agent for Indoor & Outdoor Surfaces, Leak Repair for Roofs, Walls & Terraces (3 Set)Z $34.99
Sponsored
$3499
current price $34.99Clear Waterproof Sealant Coating, 2026 New Invisible Water-Based Agent for Indoor & Outdoor Surfaces, Leak Repair for Roofs, Walls & Terraces (3 Set)Z
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
United Gilsonite Drylok Extreme Masonry Waterproofer Concrete Sealer $61.49
$6149
current price $61.49United Gilsonite Drylok Extreme Masonry Waterproofer Concrete Sealer
204.4 out of 5 Stars. 20 reviews
1 gal UGL 27513 White Drylok Original Concrete & Masonry Waterproofer $57.70
$5770
current price $57.701 gal UGL 27513 White Drylok Original Concrete & Masonry Waterproofer
154.7 out of 5 Stars. 15 reviews
Interior/Exterior Brick Sealer, Sheen - Clear Water Based Acrylic Sealer - Reduces Brick Dust & Makes Interior & Exterior Brick Walls Easy to Clean - 1 Gallon $42.99
$4299
current price $42.99Interior/Exterior Brick Sealer, Sheen - Clear Water Based Acrylic Sealer - Reduces Brick Dust & Makes Interior & Exterior Brick Walls Easy to Clean - 1 Gallon
Ames Block & Wall Liquid Rubber Coating 5 Gallon Was $234.66
Ames Block & Wall Liquid Rubber Coating 5 Gallon
33.7 out of 5 Stars. 3 reviews
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
MKDAQIQIU 11-Piece Drywall & Caulking Tool Kit - Includes 9" Heavy-Duty Sealant Gun for Spackle, Sheetrock Mud & Repair $10.52
Sponsored
$1052
current price $10.52MKDAQIQIU 11-Piece Drywall & Caulking Tool Kit - Includes 9" Heavy-Duty Sealant Gun for Spackle, Sheetrock Mud & Repair
14 out of 5 Stars. 1 reviews
DOMINATOR Stone Plus Gloss Satin Stone Sealer, Clay Brick Sealer, Acrylic Water Based, 1 gal From $79.00
Sponsored
From$7900
DOMINATOR Stone Plus Gloss Satin Stone Sealer, Clay Brick Sealer, Acrylic Water Based, 1 gal
3814.8 out of 5 Stars. 381 reviews
Clearance Water-Tight Wall Hole Filler Putty for AC and Pipe Holes, Flexible Sealing Clay for Chiller, Sewer and Duct Openings, White Patch Sealant Block Was $5.46
Water-Tight Wall Hole Filler Putty for AC and Pipe Holes, Flexible Sealing Clay for Chiller, Sewer and Duct Openings, White Patch Sealant Block
Best seller Clear-Seal, Seal-Krete Gloss Concrete Protective Sealer-607001, Gallon From $64.99
2 options
Available in additional 2 optionsFrom$6499
Clear-Seal, Seal-Krete Gloss Concrete Protective Sealer-607001, Gallon
2164.3 out of 5 Stars. 216 reviews
AQUA-x 11 Concrete Sealer, Water-Based Driveway & Patio Sealer, Penetrating Concrete Protection, 5 Gallon From $60.00
2 options
Available in additional 2 optionsFrom$6000
AQUA-x 11 Concrete Sealer, Water-Based Driveway & Patio Sealer, Penetrating Concrete Protection, 5 Gallon
834.8 out of 5 Stars. 83 reviews
UGL UG327495 Drylok White Extreme Masonry Waterproofer $291.76
$29176
current price $291.76UGL UG327495 Drylok White Extreme Masonry Waterproofer
UGL - Drylok - Gray -Basement & Masonry Waterproofer - for Stopping Water Leaks & Dampness - Interior - Exterior Latex Base - Sandy Texture, Tintable 1 Gallon $79.00
$7900
current price $79.00UGL - 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
Interior/Exterior Brick Sealer, Sheen - Clear Water Based Acrylic Sealer - Reduces Brick Dust & Makes Interior & Exterior Brick Walls Easy to Clean - 1 Gallon $45.49
$4549
current price $45.49Interior/Exterior Brick Sealer, Sheen - Clear Water Based Acrylic Sealer - Reduces Brick Dust & Makes Interior & Exterior Brick Walls Easy to Clean - 1 Gallon
Best seller KILZ 2 All-Purpose Interior/Exterior Multi-Purpose Water-Based Wall and Ceiling Primer, 1-Quart From $9.97
5 options
Available in additional 5 optionsFrom$997
KILZ 2 All-Purpose Interior/Exterior Multi-Purpose Water-Based Wall and Ceiling Primer, 1-Quart
33084.7 out of 5 Stars. 3308 reviews
Brick Sealer, Natural Finish, 32 Fl Oz Concentrate From $18.99
2 options
Available in additional 2 optionsFrom$1899
Brick Sealer, Natural Finish, 32 Fl Oz Concentrate
74.4 out of 5 Stars. 7 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. (4 Ounce) $12.98
Sponsored
$1298
current price $12.98GET 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. (4 Ounce)
Color Enhancer Sealer for All-Natural Stone and Pavers. Marble, Travertine, Limestone, Granite, Slate, Concrete, Grout, Brick, Block. (1 Gallon) From $39.98
Sponsored
From$3998
Color Enhancer Sealer for All-Natural Stone and Pavers. Marble, Travertine, Limestone, Granite, Slate, Concrete, Grout, Brick, Block. (1 Gallon)
54.2 out of 5 Stars. 5 reviews
Best seller KILZ 3 Premium Multi-purpose Interior/Exterior Wall and Ceiling Primer - Water-Based 1 Gallon From $14.97
2 options
Available in additional 2 optionsFrom$1497
KILZ 3 Premium Multi-purpose Interior/Exterior Wall and Ceiling Primer - Water-Based 1 Gallon
13254.7 out of 5 Stars. 1325 reviews
Loctite Pl Polyurethane Sealant Concrete Non-Sag, Pack of 1, Gray 10 fl oz Cartridge From $9.88
6 options
Available in additional 6 optionsFrom$988
Loctite Pl Polyurethane Sealant Concrete Non-Sag, Pack of 1, Gray 10 fl oz Cartridge
1464.3 out of 5 Stars. 146 reviews
Clearance JilgTeok Multi-Purpose Multi-Color Filler Waterproof Sealant for Home Repair Weather Resistant Crack Filler for Tiles Walls Windows and Doors Odorless Flexible Caulk with Long Lasting Protection From $2.07
From$207
JilgTeok Multi-Purpose Multi-Color Filler Waterproof Sealant for Home Repair Weather Resistant Crack Filler for Tiles Walls Windows and Doors Odorless Flexible Caulk with Long Lasting Protection
Clearance Multi-Purpose Gap Filler 100g with Tool, Waterproof Odorless Sealant - Mildew-Proof, Weather-Resistant, Easy-to-Apply for Wall, Tile, Wood, Floor Cracks & Whole House Sealing (Light Gray) From $7.09
From$709
Multi-Purpose Gap Filler 100g with Tool, Waterproof Odorless Sealant - Mildew-Proof, Weather-Resistant, Easy-to-Apply for Wall, Tile, Wood, Floor Cracks & Whole House Sealing (Light Gray)
Clearance Transparent Waterproof for Tile and Wall | Leak Proof Sealant | Fast Drying | Clear Finish | Multi-Application | 100ml for Crack Sealing and Protection Was $7.29
Transparent Waterproof for Tile and Wall | Leak Proof Sealant | Fast Drying | Clear Finish | Multi-Application | 100ml for Crack Sealing and Protection
2-Pack of 1 gal UGL 27513 White Drylok Latex-Based Masonry Waterproofer
2 options
Available in additional 2 options2-Pack of 1 gal UGL 27513 White Drylok Latex-Based Masonry Waterproofer
13 out of 5 Stars. 1 reviews
Clearance Qiopertar Under $5 Water-Based Concrete Hardener Spray 500ml, Penetrating Sealer for Wall Floor Waterproofing, Anti-Alkali Treatment Agent for Surface Protection $11.99 Was $16.99
Now$1199
current price Now $11.99, Was $16.99$16.99
Qiopertar Under $5 Water-Based Concrete Hardener Spray 500ml, Penetrating Sealer for Wall Floor Waterproofing, Anti-Alkali Treatment Agent for Surface Protection
Clear, Zinsser Okon Plugger Concrete and Masonry Water Repellent Sealer - OK950, 5 Gallon- 1 Pack $229.91 $45.98/gl
$22991
current price $229.91$45.98/gl
Clear, Zinsser Okon Plugger Concrete and Masonry Water Repellent Sealer - OK950, 5 Gallon- 1 Pack
Natural Stone and Grout Penetrating Shower Sealer. Marble, Granite Travertine, Limestone. Protects the Surface from Damage and Build-up for up to Ten Years! (1 Gallon) $59.98
Sponsored
$5998
current price $59.98Natural Stone and Grout Penetrating Shower Sealer. Marble, Granite Travertine, Limestone. Protects the Surface from Damage and Build-up for up to Ten Years! (1 Gallon)
13 out of 5 Stars. 1 reviews
Black Diamond Stoneworks Granite Sealer: Seals and Protects. Marble Sealer Protector. Granite, Marble, and Travertine Countertop Sealer for All Stone Countertops. Enhance Your Stone’s Natural Beauty.… $96.65
Sponsored
$9665
current price $96.65Black Diamond Stoneworks Granite Sealer: Seals and Protects. Marble Sealer Protector. Granite, Marble, and Travertine Countertop Sealer for All Stone Countertops. Enhance Your Stone’s Natural Beauty.…
Ugl 23613 1 Gallon Drylok Siloxane 7 Brick & Masonry Penetrating Sealer$$Tools & Hardware Other $99.43 Was $182.70
Now$9943
current price Now $99.43, Was $182.70$182.70
Ugl 23613 1 Gallon Drylok Siloxane 7 Brick & Masonry Penetrating Sealer$$Tools & Hardware Other
BASF MasterSeal 583 Waterproof Coating White, Wall Filler, 5 Gallons $82.25
$8225
current price $82.25BASF MasterSeal 583 Waterproof Coating White, Wall Filler, 5 Gallons
33.7 out of 5 Stars. 3 reviews
Clearance ZZkhGO Multi Purpose Wall Filler, Waterproof Crack Gap Sealer, Multi Color Sealant for Home Repair Was $6.99
ZZkhGO Multi Purpose Wall Filler, Waterproof Crack Gap Sealer, Multi Color Sealant for Home Repair
Clearance Waterproof Coating Polymer Cement Waterproof Paint Flexible Crack Resistant Waterproof Sealant for Concrete Wood Metal Waterproofing Coating for Roof Bathroom Basement Wall 100g Was $6.00
Waterproof Coating Polymer Cement Waterproof Paint Flexible Crack Resistant Waterproof Sealant for Concrete Wood Metal Waterproofing Coating for Roof Bathroom Basement Wall 100g
Fufafayo under $5 Waterproof Sealant, Household Sealant and Leak Repair Paint, Waterproof Agent for Toilet, Kitchen, and External Wall, Plugging and Patching Paint for Brick and Tile
Fufafayo under $5 Waterproof Sealant, Household Sealant and Leak Repair Paint, Waterproof Agent for Toilet, Kitchen, and External Wall, Plugging and Patching Paint for Brick and Tile
Zinsser WaterTite Polyurethane Sealant for Concrete and Masonry-5091, 10.1 oz $8.55 Was $18.42 84.7 ¢/oz
Now$855
current price Now $8.55, Was $18.42$18.42
84.7 ¢/oz
Zinsser WaterTite Polyurethane Sealant for Concrete and Masonry-5091, 10.1 oz
15 out of 5 Stars. 1 reviews
Sealing Mud, Household Waterproof Plugging, Conditioning Hole Sealing Mud, Hole Repairing Mud, Wall Blocking Mud
Sealing Mud, Household Waterproof Plugging, Conditioning Hole Sealing Mud, Hole Repairing Mud, Wall Blocking Mud
UGL Drylok Clear Natural Look Concrete Sealer - Acrylic Masonry Sealer - 1 Gal $49.41
$4941
current price $49.41UGL Drylok Clear Natural Look Concrete Sealer - Acrylic Masonry Sealer - 1 Gal
35 out of 5 Stars. 3 reviews
Wall Repair Paste, Wall Crack Repair Paste, Clear Silicone Sealant Waterproof, Concrete Patch And Repair, Spackle Wall Repair, Indoor Moisture Blocking, Invisible Coating, 30G, 1 From $12.49
2 options
Available in additional 2 optionsFrom$1249
Wall Repair Paste, Wall Crack Repair Paste, Clear Silicone Sealant Waterproof, Concrete Patch And Repair, Spackle Wall Repair, Indoor Moisture Blocking, Invisible Coating, 30G, 1
SSZMDLB Anti-Aging Serum, Sealant Waterproof Adhesive, Wall Ceiling Leak Proof Glue, Tile Brick Concrete Sealant, Window Balcony Roof Leakage Preventer, Bathroom Kitchen Gap Sealant
SSZMDLB Anti-Aging Serum, Sealant Waterproof Adhesive, Wall Ceiling Leak Proof Glue, Tile Brick Concrete Sealant, Window Balcony Roof Leakage Preventer, Bathroom Kitchen Gap Sealant
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
Qiweii 100ml Household Multi-Purpose Sealant, Toilet Kitchen External Wall Repair, Brick Patching Plugging Paint
Qiweii 100ml Household Multi-Purpose Sealant, Toilet Kitchen External Wall Repair, Brick Patching Plugging Paint
Clearance Dadiaei Multi-Color Household Filler – Waterproof & Mold-Resistant Gap Sealant, Weatherproof for Indoor/Outdoor Use, Odorless Formula for Walls, Tiles & Wood Was $7.17
Dadiaei Multi-Color Household Filler – Waterproof & Mold-Resistant Gap Sealant, Weatherproof for Indoor/Outdoor Use, Odorless Formula for Walls, Tiles & Wood
Sealing Mud, Household Waterproof Plugging, Conditioning Hole Sealing Mud, Hole Repairing Mud, Wall Blocking Mud
Sealing Mud, Household Waterproof Plugging, Conditioning Hole Sealing Mud, Hole Repairing Mud, Wall Blocking Mud
UGL 30507 10.5 Oz Drylok Masonry Crack Filler $15.00
$1500
current price $15.00UGL 30507 10.5 Oz Drylok Masonry Crack Filler
63.7 out of 5 Stars. 6 reviews
Ugl 23613 1 Gallon Drylok Siloxane 7 Brick & Masonry Penetrating Sealer $91.51
$9151
current price $91.51Ugl 23613 1 Gallon Drylok Siloxane 7 Brick & Masonry Penetrating Sealer
Wall Repair Paste, Clear Sealant Waterproof, Concrete Sealer, 300G, 1 Pc, Concrete Crack Repair, Wall Mending Agent, Clear Silicone Sealant, Basement Leak Repair, Interior From $12.49
3 options
Available in additional 3 optionsFrom$1249
Wall Repair Paste, Clear Sealant Waterproof, Concrete Sealer, 300G, 1 Pc, Concrete Crack Repair, Wall Mending Agent, Clear Silicone Sealant, Basement Leak Repair, Interior
Waterproof Spray Kadlawus Waterproof Spray, Permeable Sealer for External Wall Leakage Repair, Invisible Water Repellent Coating for Bathroom Tile, Roof, Concrete, Masonry, Stone, Brick
Waterproof Spray Kadlawus Waterproof Spray, Permeable Sealer for External Wall Leakage Repair, Invisible Water Repellent Coating for Bathroom Tile, Roof, Concrete, Masonry, Stone, Brick
Popular in Block Wall Sealer
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