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20 Best Hot Tub Leak Sealer (2023 Updated)

Hot tub leak sealer is a product that is used to seal leaks in hot tubs. It is a thick, viscous liquid that is applied to the leaky area and then allowed to dry. Once it is dry, it forms a seal that is impervious to water.

20 Best Hot Tub Leak Sealer

Product Image Product Name Features Price

Spa Bond Hot Tub & Pool Leak Seal Patch Kit – Clear Ultra-Adhesive Waterproof Repair Fix for Vinyl, PVC, Acrylic MT1090

  • PVC Pipe leak repair – conforms to any shape
  • Vinyl liner – spa cover tear repair – ultra adhesive bond – no messy liquids

Spa Choice 472-3-5071 Seal A Leak 1 Pint

  • 1 Pack

Fix A Leak Pool Leak Sealer – 32 oz

  • Finds and fixes leaks fast
  • Permanently seals leaks and holes up to 1/8 inch in diameter in most any material including plumbing

Marlig Fixaleak32 Fix-A-Leak Pool or Spa 32 oz Liquid Sealant

  • Brand: Marlig
  • Fix A Leak 32Oz Bottle
  • Package Dimensions: 8.0 x 8.0 x 8.0 inches

Rustoleum Leakseal All-purpose Flexible Rubber Coating Sealant Spray, Clear – 11 oz can

  • 11 oz

Flex Seal 1 gal. Liquid Rubber Sealant, White

  • Thick liquid that dries to a flexible watertight rubberized coating.
  • Creates a flexible rubber barrier that blocks out air water and moisture.

American Granby FAL32 32 oz Fix-A-Leak Bottle

  • is a blended concentrated material designed to seal leaks in virtually any material.
  • can be applied for leaks in the shell and works equally well in plumbing.

Leisure Time ZJ-02 Leak Seal for Spas and Hot Tubs 1-Quart 2-Pack

  • Compatible with bromine, chlorine and ozone sanitizers
  • Seal minor leaks in spa surfaces and plumbing without draining
  • Easy to use

Marlig Industries, Marlig Fix-A-Leak Pool and Spa Leak Sealer – 32 oz

  • Applications: Pools & Spas
  • Size: 950ml Bottle
  • Item Condition: NEW

DAP Kwik Seal Ultra Premium Kitchen and Bath Sealant, White – 5.5 fl oz tube

  • Stain Proof Protection, Crack proof
  • Sealant stays looking clean, fresh & new
  • Safe for granite and marble, Water ready in 4 hours

Lo-Chlor Leak Sealer – 1 Quart Bottle

  • Not for use in vinyl liner pools.
  • Seals minor leaks in most swimming pools & spas.

Fernox 56603 500ml F4 Leak Sealer

  • Product Name: Fernox 56603 500ml F4 Leak Sealer.
  • Packaged dimensions (LxWxH): 8.27 x 3.86 x 2.68 (inches).
  • Condition: New.

Pro Seal 80046 Black RTV Silicone Instant Gasket 3 oz

  • Replaces most pre-cut gaskets by forming gaskets in-place
  • Replaces cork
  • Tough and flexible – dries to form a strong and flexible gasket

Dap Silicone Max Premium Kitchen and Bath Sealant 2.8 oz. White

  • Resists cracking, crumbling and chalking.
  • Cured sealant is mildew resistant.
  • Indoor use only.

10.3 oz Silicone Adhesive Clear 80200B

  • All natural Enzyme
  • No more itching, No more rashes, No more scum lines
  • Reduces and/or eliminates the majority of your spa care chemical regimen including pH up, pH down, clarifiers and filter cleaning products

Leisure Time Leak Seal (1 qt)

  • Specially formulated for spas and hot tubs.
  • Convenient and easy-to-use formula repairs most spa hot tub surfaces.
  • Helps maintain your spa’s surface and plumbing for years of enjoyment.
Spa Bond Hot Tub & Pool Leak Seal Patch Kit – Clear Ultra-Adhesive Waterproof Repair Fix for Vinyl, PVC, Acrylic MT1090
  • PVC Pipe leak repair – conforms to any shape
  • Vinyl liner – spa cover tear repair – ultra adhesive bond – no messy liquids
Spa Choice 472-3-5071 Seal A Leak 1 Pint
  • 1 Pack
Fix A Leak Pool Leak Sealer – 32 oz
  • Finds and fixes leaks fast
  • Permanently seals leaks and holes up to 1/8 inch in diameter in most any material including plumbing
Marlig Fixaleak32 Fix-A-Leak Pool or Spa 32 oz Liquid Sealant
  • Brand: Marlig
  • Fix A Leak 32Oz Bottle
  • Package Dimensions: 8.0 x 8.0 x 8.0 inches
Rustoleum Leakseal All-purpose Flexible Rubber Coating Sealant Spray, Clear – 11 oz can
  • 11 oz
Flex Seal 1 gal. Liquid Rubber Sealant, White
  • Thick liquid that dries to a flexible watertight rubberized coating.
  • Creates a flexible rubber barrier that blocks out air water and moisture.
American Granby FAL32 32 oz Fix-A-Leak Bottle
  • is a blended concentrated material designed to seal leaks in virtually any material.
  • can be applied for leaks in the shell and works equally well in plumbing.
Leisure Time ZJ-02 Leak Seal for Spas and Hot Tubs 1-Quart 2-Pack
  • Compatible with bromine, chlorine and ozone sanitizers
  • Seal minor leaks in spa surfaces and plumbing without draining
  • Easy to use
Marlig Industries, Marlig Fix-A-Leak Pool and Spa Leak Sealer – 32 oz
  • Applications: Pools & Spas
  • Size: 950ml Bottle
  • Item Condition: NEW
DAP Kwik Seal Ultra Premium Kitchen and Bath Sealant, White – 5.5 fl oz tube
  • Stain Proof Protection, Crack proof
  • Sealant stays looking clean, fresh & new
  • Safe for granite and marble, Water ready in 4 hours
Lo-Chlor Leak Sealer – 1 Quart Bottle
  • Not for use in vinyl liner pools.
  • Seals minor leaks in most swimming pools & spas.
Fernox 56603 500ml F4 Leak Sealer
  • Product Name: Fernox 56603 500ml F4 Leak Sealer.
  • Packaged dimensions (LxWxH): 8.27 x 3.86 x 2.68 (inches).
  • Condition: New.
Pro Seal 80046 Black RTV Silicone Instant Gasket 3 oz
  • Replaces most pre-cut gaskets by forming gaskets in-place
  • Replaces cork
  • Tough and flexible – dries to form a strong and flexible gasket
Dap Silicone Max Premium Kitchen and Bath Sealant 2.8 oz. White
  • Resists cracking, crumbling and chalking.
  • Cured sealant is mildew resistant.
  • Indoor use only.
10.3 oz Silicone Adhesive Clear 80200B
  • All natural Enzyme
  • No more itching, No more rashes, No more scum lines
  • Reduces and/or eliminates the majority of your spa care chemical regimen including pH up, pH down, clarifiers and filter cleaning products
Leisure Time Leak Seal (1 qt)
  • Specially formulated for spas and hot tubs.
  • Convenient and easy-to-use formula repairs most spa hot tub surfaces.
  • Helps maintain your spa’s surface and plumbing for years of enjoyment.

1. Spa Bond Hot Tub & Pool Leak Seal Patch Kit – Clear Ultra-Adhesive Waterproof Repair Fix for Vinyl, PVC, Acrylic MT1090

Spa Bond Hot Tub & Pool Leak Seal Patch Kit - Clear Ultra-Adhesive Waterproof Repair Fix for Vinyl, PVC, Acrylic MT1090

  • PVC Pipe leak repair – conforms to any shape
  • Vinyl liner – spa cover tear repair – ultra adhesive bond – no messy liquids
  • Seals cracks in spa shell – even large holes
  • (2) 2″x2″ and (2) 4″x4″ Clear Patches (four total)
  • Just peel & stick for a perfect leak repair – Made in USA

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay – thespadepot
Walmart – Spa Depot
SpaDepot.com

Product Details

Specifications

Details
Is Discontinued By Manufacturer No

Reviews From Real Customers

Tubbn'
Betsy the Nurse Anesthetist
Mr. Sanders if you please

2. Spa Choice 472-3-5071 Seal A Leak 1 Pint

Spa Choice 472-3-5071 Seal A Leak 1 Pint

  • 1 Pack

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart

Product Details

Specifications

Details
Product Dimensions 3 x 6 x 10 inches
Country of Origin USA
Is Discontinued By Manufacturer No

3. Fix A Leak Pool Leak Sealer – 32 oz

Fix A Leak Pool Leak Sealer - 32 oz

  • Finds and fixes leaks fast
  • Permanently seals leaks and holes up to 1/8 inch in diameter in most any material including plumbing
  • Spa Dosage: 8 oz

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
Walmart
PoolSupplies.com

Product Details

Specifications

Details
Size Size: 32 oz

Reviews From Real Customers

barrfulle-26
kojaone
robert

4. Marlig Fixaleak32 Fix-A-Leak Pool or Spa 32 oz Liquid Sealant

Marlig Fixaleak32 Fix-A-Leak Pool or Spa 32 oz Liquid Sealant

  • Brand: Marlig
  • Fix A Leak 32Oz Bottle
  • Package Dimensions: 8.0 x 8.0 x 8.0 inches

Check Latest Price

Sold By Price
Amazon.com
eBay – widestep
Walmart
ShopChimney.com

Product Details

Specifications

Details
Recommended Use Swimming Pool
Assembled Product Dimensions (L x W x H) 1.00 x 1.00 x 1.00 Inches

Reviews From Real Customers

Reviewed by Pool and Spa Warehouse customer
iixeb
denissong

5. Rustoleum Leakseal All-purpose Flexible Rubber Coating Sealant Spray, Clear – 11 oz can

Rustoleum Leakseal All-purpose Flexible Rubber Coating Sealant Spray, Clear - 11 oz can

  • 11 oz

Check Latest Price

Sold By Price
Amazon.com
eBay
Walmart
Tractor Supply Company

Product Details

Specifications

Details
Color Clear
Product Type Leakseal Flexible Rubber Sealant
Cold Application Yes
Water Based Yes
Durability 1 Year

Reviews From Real Customers

Suresh
Sue
AluminumBoatGuy

6. Flex Seal 1 gal. Liquid Rubber Sealant, White

Flex Seal 1 gal. Liquid Rubber Sealant, White

  • Thick liquid that dries to a flexible watertight rubberized coating.
  • Creates a flexible rubber barrier that blocks out air water and moisture.
  • Non-Toxic Non-flammable no harmful vapors UV chemical and mildew resist.
  • Seals and protects from the elements and extreme temperatures.

Check Latest Price

Sold By Price
Amazon.com – Seller
Walmart
Home Depot
Camping World

Product Details

Specifications

Details
Full Cure Time 48 hr
Product Type Liquid Rubber Sealant Coating
Time Before Recoating 48 hr
Primer Required No
UV Resistant Yes

Reviews From Real Customers

Vegasaur
bluejeep153

7. Marlig Fix A Leak 32oz Pool and Spa Leak Stop

Marlig Fix A Leak 32oz Pool and Spa Leak Stop

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Sold By Price
Amazon
eBay
Walmart
Leslie’s Pool Supplies

Product Details

Specifications

Details
Alternate Model Numbers FAL-32 FAL32
Ship Weight (lbs) 3.1

Reviews From Real Customers

Ian C
tsch-ro
w2sweets

8. American Granby FAL32 32 oz Fix-A-Leak Bottle

American Granby FAL32 32 oz Fix-A-Leak Bottle

  • is a blended concentrated material designed to seal leaks in virtually any material.
  • can be applied for leaks in the shell and works equally well in plumbing.
  • will seal holes 1/8 in diameter.
  • will form a long lasting seal.
  • use 1 quart per pool up to 22.000gallons.

Check Latest Price

Sold By Price
Amazon
BestPoolShop.com
Pool and Spa Supply Store
OneSourcePool

Product Details

Reviews From Real Customers

dallagif-0
dpfent65
curtisautumn13

9. Leisure Time ZJ-02 Leak Seal for Spas and Hot Tubs 1-Quart 2-Pack

Leisure Time ZJ-02 Leak Seal for Spas and Hot Tubs 1-Quart 2-Pack

  • Compatible with bromine, chlorine and ozone sanitizers
  • Seal minor leaks in spa surfaces and plumbing without draining
  • Easy to use

Check Latest Price

Sold By Price
Amazon
DuoClear Cartridge

Product Details

Specifications

Details
Product Dimensions 6 x 10 x 3 inches
Country of Origin USA
Is Discontinued By Manufacturer No

Reviews From Real Customers

whatithink
MrsBigSteve

10. Marlig Industries, Marlig Fix-A-Leak Pool and Spa Leak Sealer – 32 oz

Marlig Industries, Marlig Fix-A-Leak Pool and Spa Leak Sealer - 32 oz

  • Applications: Pools & Spas
  • Size: 950ml Bottle
  • Item Condition: NEW
  • Model#: Fix-a-leak
  • Quantity: 100

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Sold By Price
Amazon
Walmart

Product Details

Specifications

Details
Recommended Use Spa

Reviews From Real Customers

JaniceM
veecee-123

11. Marlig Fix-A-Leak Pool or Spa 32 oz Liquid Sealant Fixaleak32

Marlig Fix-A-Leak Pool or Spa 32 oz Liquid Sealant Fixaleak32

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Sold By Price
Amazon
eBay – widestep

Product Details

12. PL Heavy Duty Sealant, White, 9.5-oz.

PL Heavy Duty Sealant, White, 9.5-oz.

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Sold By Price
Amazon
eBay
Home Depot
DK Hardware

Product Details

Reviews From Real Customers

EFES
MTS35
PVR4409

13. DAP Kwik Seal Ultra Premium Kitchen and Bath Sealant, White – 5.5 fl oz tube

DAP Kwik Seal Ultra Premium Kitchen and Bath Sealant, White - 5.5 fl oz tube

  • Stain Proof Protection, Crack proof
  • Sealant stays looking clean, fresh & new
  • Safe for granite and marble, Water ready in 4 hours

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Sold By Price
Amazon
Lowe’s
Home Depot
Ace Hardware

Product Details

Specifications

Details
Container Size 5.5 oz
Application Kitchen
Color White
Coverage Area 30 linear ft
Brand Name DAP
Product Type Sealant
Recommended Surface High temperature surfaces
Indoor or Outdoor Indoor
Moisture Resistant Yes
Clean Up Water
Fire and High Heat Resistant No
Mildew Resistant Yes
Permanently Flexible Yes
Paintable No

Reviews From Real Customers

HeyYou

14. Lo-Chlor Leak Sealer – 1 Quart Bottle

Lo-Chlor Leak Sealer - 1 Quart Bottle

  • Not for use in vinyl liner pools.
  • Seals minor leaks in most swimming pools & spas.

Check Latest Price

Sold By Price
Amazon
eBay – poolsuppliessuperstore
Walmart – Pool Supplies Superstore

Product Details

Specifications

Details
Assembled Product Dimensions (L x W x H) 13.00 x 12.00 x 1.00 Inches

Reviews From Real Customers

bev1897
lyndsey.h
richa.a

15. Fernox 56603 500ml F4 Leak Sealer

Fernox 56603 500ml F4 Leak Sealer

  • Product Name: Fernox 56603 500ml F4 Leak Sealer.
  • Packaged dimensions (LxWxH): 8.27 x 3.86 x 2.68 (inches).
  • Condition: New.

Check Latest Price

Sold By Price
Amazon
Bonanza – roxy media’s booth

Product Details

Specifications

Details
Product Genre/Category Home & Garden

Reviews From Real Customers

nilknarf
JamesB007x
MarkIX

16. Pro Seal 80046 Black RTV Silicone Instant Gasket 3 oz

Pro Seal 80046 Black RTV Silicone Instant Gasket 3 oz

  • Replaces most pre-cut gaskets by forming gaskets in-place
  • Replaces cork
  • Tough and flexible – dries to form a strong and flexible gasket
  • Large temperature range – withstands temperatures between -60C and 204C (260C for intermittent periods)

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Sold By Price
Amazon
eBay
Walmart
Grainger Industrial Supply

Product Details

Specifications

Details
Temp. Range -75 to 500 Degrees F
Specific Gravity 1.04
Flash Point 250 Degrees F
Full Cure 24 hr
Begins to Harden 10 to 20 min

Reviews From Real Customers

loot-hoarder
Zoro
725ice

17. Dap Silicone Max Premium Kitchen and Bath Sealant 2.8 oz. White

Dap Silicone Max Premium Kitchen and Bath Sealant 2.8 oz. White

  • Resists cracking, crumbling and chalking.
  • Cured sealant is mildew resistant.
  • Indoor use only.
  • Meets ASTM C920, Specification C719, Class 25.

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Sold By Price
Amazon
eBay
Walmart
Target

Product Details

Reviews From Real Customers

obsessedwithtarget
dap.com

18. Flex Seal Black Liquid Rubber Sealant Coating

Flex Seal Black Liquid Rubber Sealant Coating

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Amazon
eBay
Walmart
Lowe’s

Product Details

Specifications

Details
Assembled Product Weight 2 lbs
Assembled Product Dimensions (L x W x H) 4.25 x 4.25 x 4.75 Inches

19. 10.3 oz Silicone Adhesive Clear 80200B

10.3 oz Silicone Adhesive Clear 80200B

  • All natural Enzyme
  • No more itching, No more rashes, No more scum lines
  • Reduces and/or eliminates the majority of your spa care chemical regimen including pH up, pH down, clarifiers and filter cleaning products
  • Easier on your spa equipment than Bromine

Check Latest Price

Sold By Price
eBay
Walmart
SpaDepot.com
Big Frog Supply

Product Details

Specifications

Details
Package Dimensions 12.68 x 2.44 x 1.97 inches
Is Discontinued By Manufacturer No

Reviews From Real Customers

tubadave
Fish
master chief

20. Leisure Time Leak Seal (1 qt)

Leisure Time Leak Seal (1 qt)

  • Specially formulated for spas and hot tubs.
  • Convenient and easy-to-use formula repairs most spa hot tub surfaces.
  • Helps maintain your spa’s surface and plumbing for years of enjoyment.

Check Latest Price

Sold By Price
Aqua Supercenter
Wild West Pool Supplies
POOLplaza
Your Pool HQ

Product Details

Specifications

Details
Weight 50.41 lb

Conclusion

The best way to seal a hot tub leak is to use a product specifically designed for that purpose. There are many different types and brands of hot tub leak sealers on the market, so it is important to do some research to find the best one for your needs.

Once you have found the right product, simply follow the instructions on the packaging to apply it to the leak. In most cases, you will need to apply the sealer several times in order to fully seal the leak.

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