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4.3 out of 5 stars. 147 reviews

Flex Seal Liquid Gray Liquid Rubber Sealant Coating, 6-Pack

4.3147 Reviews

Item # 192942799

Image showing Liquid Gray Liquid Rubber Sealant Coating, 6-Pack
Image showing Liquid Gray Liquid Rubber Sealant Coating, 6-Pack
Image showing Liquid Gray Liquid Rubber Sealant Coating, 6-Pack
Image showing Liquid Gray Liquid Rubber Sealant Coating, 6-Pack
Image showing Liquid Gray Liquid Rubber Sealant Coating, 6-Pack
Image showing Liquid Gray Liquid Rubber Sealant Coating, 6-Pack
$109.99

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Flex Seal Liquid Gray Liquid Rubber Sealant Coating, 6-Pack

4.3147 Reviews

Item # 192942799

Image showing Liquid Gray Liquid Rubber Sealant Coating, 6-Pack
Image showing Liquid Gray Liquid Rubber Sealant Coating, 6-Pack
Image showing Liquid Gray Liquid Rubber Sealant Coating, 6-Pack
Image showing Liquid Gray Liquid Rubber Sealant Coating, 6-Pack
Image showing Liquid Gray Liquid Rubber Sealant Coating, 6-Pack
Image showing Liquid Gray Liquid Rubber Sealant Coating, 6-Pack
$109.99

See 4 deals for this item

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Flex Seal LIQUID is a thick rubberized liquid that you can brush, roll, dip or pour. It starts out as a thick liquid and dries to a strong, flexible, watertight, rubberized coating. Seals out air, water and moisture and is mildew, chemical and UV resistant. Available in black, white, clear, and gray. Flex Seal Liquid is perfect for:Flex Seal Liquid works on: Concrete, glass, brick, stucco, masonry, wood, copper, plastic, tile, fabrics, wires, vinyl, fiberglass, ceramic, porcelain, metal, aluminum, natural stones, foam, asphalt, EIFS, TPO, PVC, EPDM, CSPE, Hypalon polyurethanes and more. Available in pints (16 oz.), quarts (32 oz.) and gallons (128 oz.).

  • Concrete and asphalt repair
  • Foundation repair and preventing basement seepage
  • Weatherizing and sealing out moisture
  • Home and roof repair
  • RV and motorhome weatherizing and repair
  • Pools and pool equipment
  • Outdoor ponds and bird baths

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Reviews

Rating Snapshot

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111 reviews with 5 stars.
9 reviews with 4 stars.
9 reviews with 3 stars.
3 reviews with 2 stars.
15 reviews with 1 star.

Overall Rating

4.3
33 out of 39 (85%) reviewers recommend this product

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Summary of Reviews
AI-generated using English reviews only
The product appears to be versatile, effectively sealing and waterproofing a variety of surfaces. Most customers report positive experiences, praising its ability to stop leaks, seal cracks, and prote...
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Helpful?
1 to 4 of 147 Reviews
1 – 4 of 147 Reviews
29 PALMS, CA
Review 1
GenderMale
Age65 or over

EVERYTHINGS DUCKY

a year ago
USED IT TO COAT THE INSIDE OF AN 8 FOOT ROUND METAL TUB (SO IT WON"T RUST) THAT WE GOT FOR OUR DUCKS TO USE AS A SWIMMING POOL.

Yes, I recommend this product.

Originally posted on flexsealproducts.com

Response from flexsealproducts.com:
a year ago
Flex Seal Family of Products Customer Care
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at [email protected]. Flex On!
Review 1
GenderMale
Age65 or over

Flex Seal Liquid - pint

a year ago
Product works, but despite my securely closing the lid between usage, a portion of the remaining contents start to solidify, requiring removal of that portion to get to useable material.

Yes, I recommend this product.

Originally posted on flexsealproducts.com

Response from flexsealproducts.com:
a year ago
Flex Seal Family of Products Customer Care
Hi there, thank you for taking the time to share your feedback with us. We're sorry to hear that Flex Seal did not live up to your expectations. When you have a moment, please send us an email at [email protected] so we can turn your experience around. We look forward to hearing from you, have a great day.
Washington DC
Review 1
GenderMale
Age55 to 64

Looks Like it Will do the Job

a year ago
The clear coat went on easily and sealed up the seams in my basement cinderblock wall, keeping out rainwater. The Flex Seal couldn't be cleaned from my brush, so I switched to cheap throw-away brushes. During painting and curing, Flex Seal had a very strong odor which permeated the entire house and took 2 days to disperse, even with open windows in the work area and vent fans going full blast. The dried coat is glossy, which makes the painted area reflective and look wet; a flat finish would be much better and non-glare. The Flex Seal liquid did not require mixing, just open the can and apply.

Yes, I recommend this product.

Originally posted on flexsealproducts.com

Response from flexsealproducts.com:
a year ago
Flex Seal Family of Products Customer Care
Hi there! Thank you so much for your 4 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at [email protected]. Flex On!
Kentucky
Review 1
GenderMale
Age65 or over

Repaired cracked rain barrel.

a year ago
Very surprised, 55 gal resin rain barrel froze and split at the seam

Yes, I recommend this product.

Originally posted on flexsealproducts.com

Response from flexsealproducts.com:
a year ago
Flex Seal Family of Products Customer Care
Hi there! Thank you so much for your 5 star rating. If you'd like some helpful tips and tricks for future DIY's, feel free to message us at [email protected]. Flex On!