Best Plumbing Sealant Putty in 2025
Updated on June 2025
#1
Recommended
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- Two-part epoxy putty stick that cures underwater, suitable for various repairs including plumbing, fuel tanks, and boats.
- Setting time is 25 minutes, with a complete cure in 1 hour; the color of the cured putty is off-white.
- Provides high bonding strength with a lap shear strength of 1300 PSI and can handle continuous temperatures up to 300°F and intermittent temperatures up to 350°F.
- Compatible with multiple surfaces, including iron, stainless steel, copper, brass, aluminum, fiberglass, and PVC.
- Versatile for both minor and major repairs, ensuring reliable and durable results.
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- Two-part epoxy putty stick that cures underwater, suitable for various repairs including plumbing, fuel tanks, and boats.
- Setting time is 25 minutes, with a complete cure in 1 hour; the color of the cured putty is off-white.
- Provides high bonding strength with a lap shear strength of 1300 PSI and can handle continuous temperatures up to 300°F and intermittent temperatures up to 350°F.
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#2
Value for Money
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- Gray, soft, non-toxic putty compound that adheres to various clean, dry surfaces; easily moldable and reusable.
- Hand-apply from 25°F to 120°F for sealing electrical conduit ends, boxes, and service mast entries.
- Forms an airtight and watertight seal; resistant to water, alcohol, mild acids, and bases; free from asbestos and safe for plastics and metals.
- Non-corrosive, putty-like compound that can be reshaped; suitable for HVAC/R, plumbing, and general home sealing applications; can be painted without bleeding through.
- Trusted provider of solutions for HVAC/R, plumbing, electrical, and construction trades.
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- Gray, soft, non-toxic putty compound that adheres to various clean, dry surfaces; easily moldable and reusable.
- Hand-apply from 25°F to 120°F for sealing electrical conduit ends, boxes, and service mast entries.
- Forms an airtight and watertight seal; resistant to water, alcohol, mild acids, and bases; free from asbestos and safe for plastics and metals.
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#3
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- Bacteria-resistant formulation
- Complies with Federal Specification TT-P-1536A
- Recommended for use with Harvey's Siliconized Tub Seal Latex or 100% RTV Silicone
- Not suitable for marble, synthetic marble, porous surfaces, or plastic fixtures
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- Bacteria-resistant formulation
- Complies with Federal Specification TT-P-1536A
- Recommended for use with Harvey's Siliconized Tub Seal Latex or 100% RTV Silicone
- Not suitable for marble, synthetic marble, porous surfaces, or plastic fixtures
#4
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- 100% silicone formula provides a reliable waterproof seal
- Permanently flexible for a durable, high-performance seal
- Water-ready in 30 minutes for quick use
- Resistant to shrinkage and cracking from temperature changes
- Compatible with various materials including metals, plastics, and woods
- Contains chemicals; caution advised during application
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- 100% silicone formula provides a reliable waterproof seal
- Permanently flexible for a durable, high-performance seal
- Water-ready in 30 minutes for quick use
- Resistant to shrinkage and cracking from temperature changes
- Compatible with various materials including metals, plastics, and woods
- Contains chemicals; caution advised during application
#5
5% Off
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- Manufactured in the USA
- Designed to seal pinhole leaks in pipelines
- Recommended to use E/Fusing 140 or E/Fusing 330 for wrapping and reinforcing the seal
- Product weighs 2.65 ounces
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- Manufactured in the USA
- Designed to seal pinhole leaks in pipelines
- Recommended to use E/Fusing 140 or E/Fusing 330 for wrapping and reinforcing the seal
- Product weighs 2.65 ounces
#6
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- Seals and prevents leaks with a water-tight bond.
- Remains pliable over time, even under high temperatures.
- Versatile application for sinks, tubs, toilets, and other fixtures.
- Produced in the United States.
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- Seals and prevents leaks with a water-tight bond.
- Remains pliable over time, even under high temperatures.
- Versatile application for sinks, tubs, toilets, and other fixtures.
- Produced in the United States.
#7
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- Category: Adhesives & Sealants
- Made in the USA
- Manufacturer: Rectorseal
- Slow-drying, soft-setting thread sealant that is reliable in various applications
- Allows for tighter joints with lower torque due to low friction
- Breaks out easily without damaging threads, suitable for immediate pressurization
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- Category: Adhesives & Sealants
- Made in the USA
- Manufacturer: Rectorseal
- Slow-drying, soft-setting thread sealant that is reliable in various applications
- Allows for tighter joints with lower torque due to low friction
- Breaks out easily without damaging threads, suitable for immediate pressurization
#8
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- Includes adhesives and sealants
- Manufactured in the United States
- Produced by Rectorseal
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- Includes adhesives and sealants
- Manufactured in the United States
- Produced by Rectorseal
#9
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- Soft and flexible waterproof sealing clay, ideal for wall repairs and hole filling.
- Versatile usage for various repair needs, including wall putty and duct seal.
- Effective waterproof sealant suitable for multiple surfaces.
- Pre-application surface cleaning is essential; allow 3-5 days for drying before moisture exposure.
- Conveniently packaged in 8 bags of 30g each for ease of use and storage.
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- Soft and flexible waterproof sealing clay, ideal for wall repairs and hole filling.
- Versatile usage for various repair needs, including wall putty and duct seal.
- Effective waterproof sealant suitable for multiple surfaces.
- Pre-application surface cleaning is essential; allow 3-5 days for drying before moisture exposure.
- Conveniently packaged in 8 bags of 30g each for ease of use and storage.
#10
5% Off
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- Various applications for adhesives and sealants
- Manufactured in the United States
- Produced by Oatey
- Non-staining and flexible polymer sealant
- Professional-grade quality
- Oil-free and suitable for porous surfaces without pre-treatment
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- Various applications for adhesives and sealants
- Manufactured in the United States
- Produced by Oatey
- Non-staining and flexible polymer sealant
- Professional-grade quality
- Oil-free and suitable for porous surfaces without pre-treatment
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