Flex Paste Industrial Sealant, Thick Rubber Coating, Black, 8.75 fl oz price history and forecast - Flex Seal PFSBLKR16
Flex Paste Industrial Sealant, Thick Rubber Coating, Black, 8.75 fl oz

Flex Paste Industrial Sealant, Thick Rubber Coating, Black, 8.75 fl oz

Brand:
Flex Seal
Model Number:
PFSBLKR16
UPC:
850017897199
EAN:
0850017897199
Walmart SKU:
669440906
Key Takeaway

Market direction turned downward with current $14.87 representing 0.0% under standard pricing.

Third-Party Seller Summary

Third-Party Seller Price History Summary
Price Type Price Date
Highest Price
$13.36
Lowest Price
$7.85
Most Recent Price
$11.72
Average Price
$9.10
First Tracked
Last Update

Walmart.com Summary

Walmart.com Price History Summary
Price Type Price Date
Highest Price
$14.87
Lowest Price
$11.48
Most Recent Price
$14.87
Average Price
$14.15
First Tracked
Last Update

Price Analysis

Tracking History: We have tracked Flex Paste Industrial Sealant, Thick Rubber Coating, Black, 8.75 fl oz since 12/21/2022. The most recent price update was on Jun 4, 2026.

Price Range: Over the past 90 days, the price has ranged from $11.48 (lowest on 10/7/2025) to $14.87 (highest on 12/21/2022). The average price during this period is $14.15.

Current Trend: Walmart.com prices have ranged from $14.87 (Jun 4) to $14.87 (Jun 4) over the past 90 days. Current price is close to the 90-day average of $14.87.

Customer Insights: Rated 4.1/5 from 1373 reviews.

Customer Reviews

1373 reviews

Customer Reviews

4.1
Based on 1373 reviews
5
877
4
158
3
98
2
58
1
182
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Showing 10 of 1373 reviews

Flex Paste - Fixes Shower Tub/Leak

RedDog May 9, 2020

We've had an on-going problem with our 20 year old fiberglass/gelcoat shower/tub. The leak started as a small hairline crack in the bottom and has grown to 2-3". Over the last 3 years I've patched it twice with the Gelcoat Repair Kits which last a while, but begin leaking again. I did some research and decided to give Flex Paste a try. I covered the leaking area with Flex Paste and have been leak free for a couple of weeks. It seems like a solid repair and we'll see how long it lasts. I like that I can spread the Flex Paste well beyond the crack.

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Flex Paste Black review

Guierrmo November 11, 2025

I wish the cure time was faster. used to repair large hole in plastic fender liner on older Honda Civic. Ended up putting 2 layers on over period of 2 days.

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Flex seal has a new purpose (or two)

Anonymous November 6, 2022

Two different uses of the Flexseal paste I have never seen advertised. 1) I have used Flexseal to repair bicycle inner tube punctures rather than a cheap patch. Normal prep of the tube and a coating if the paste is all that's required tor an air tight seal and no issues. As a competitive cyclist, I have lots of training rides in less than ideal conditions resulting in several punctures. I'll usually collect several tubes and spend very few minutes affecting the repairs. 2) I'm currently replacing pool decking and installing composite decking over a concrete and paver pool deck. Over time, the pool deck has shifted and cracked and the surface is uneven and broken in places. I use Flex seal to help anchor the ends of the composite decking to the existing surface to keep the surface level and secure. Works well.

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Seal

Gnirad April 7, 2026

Not sure what happened with the item I got but it was caked hard and hard to work with not sure if it was how it was stored but it was not what I had expected. It was very difficult to apply to the surface where I needed it , as it was overhead and because of it no being as pasty as I had anticipated made the project harder than it should have been A picture of the product received is submitted

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No good for koi ponds!

Jack G June 20, 2021

It works as described to use under water . But I warn anyone trying to use this product in their Koi fish pond.. Do not use! I attempted to use this to stop a leaky water skimmer. Although, so far my fish seem unharmed, Flex Paste leaves a large oily film on top of the water. It is virtually impossible to get rid of without fully draining and washing your pond out.

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Complaint

Julie April 14, 2024

I bought the Flex Paste in March of this year. We opened it yesterday (April of this year). There was a ring of dried paste 1/4 of the way down. It was very difficult to get the good paste out from below the ring. We would have been able to finish our project if not for the dried paste. I don’t appreciate spending $15 and not being able to use all of the product.

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Most of it had solidified and was unusable.

SaraLinda December 16, 2025

Arrived mostly solidified with a central area of barely useable semi solid rubber. Very disappointed.

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Rock Hard on arrival

Florida July 18, 2023

The item arrived with 1-1.75” of hardened product. The top layer was almost impossible to penetrate. I was able to make a small hole with a drill bit and scoop out 2-3 teaspoons. My worst experience with Flex seal.

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Not very good

Gerthy October 30, 2023

Open the container to use it for the first time today half the product has already hardened. Not pleased at all. I can only use the middle.

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Randy February 3, 2026

this product was more of a mess to use just to have it NOT work at all.. we had a hole in the tub drain. the stuff seemed like it was already starting to dry before we even opened it. I used spakle tool to spread it on the pipe which was a nightmare.. it says it stick on wet surfaces LIE.. WE LET IT SET FOR 48 HRS and as soon as we turned the water on in the tub it sprayed water everywhere..

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Price History

Historical price data graph for Flex Paste Industrial Sealant, Thick Rubber Coating, Black, 8.75 fl oz

Recent Price Changes

Detailed price history for the past 90 days

Walmart.com Pricing

3 records

Walmart.com prices have ranged from $14.87 (Jun 4) to $14.87 (Jun 4) over the past 90 days. Current price is close to the 90-day average of $14.87.

Walmart.com price history for Flex Paste Industrial Sealant, Thick Rubber Coating, Black, 8.75 fl oz showing recent price changes over the past 90 days
Date Price Change % Change
$14.87 $+0.00 +0.0%
$14.87 $+0.00 +0.0%
$14.87

Third-Party Seller Pricing

57 records

Third-Party Sellers prices have ranged from $7.90 (Apr 26) to $13.36 (May 5) over the past 90 days. Current price is 26.4% above the 90-day average of $9.27.

Third-party seller price history for Flex Paste Industrial Sealant, Thick Rubber Coating, Black, 8.75 fl oz showing recent price changes
Date Price Change % Change
$11.72 $+3.37 +40.4%
$8.35 $+0.08 +1.0%
$8.27 $-4.20 -33.7%
$12.47 $+1.81 +17.0%
$10.66 $-0.86 -7.5%
$11.52 $+3.44 +42.6%
$8.08 $-0.56 -6.5%
$8.64 $-2.91 -25.2%
$11.55 $+0.21 +1.9%
$11.34 $-1.04 -8.4%
$12.38 $+3.28 +36.0%
$9.10 $+0.00 +0.0%
$9.10 $+0.00 +0.0%
$9.10 $+1.02 +12.6%
$8.08 $-5.28 -39.5%
$13.36 $+2.73 +25.7%
$10.63 $-1.92 -15.3%
$12.55 $-0.48 -3.7%
$13.03 $-0.16 -1.2%
$13.19 $+3.91 +42.1%
$9.28 $-3.49 -27.3%
$12.77 $-0.19 -1.5%
$12.96 $+2.16 +20.0%
$10.80 $+2.64 +32.4%
$8.16 $+0.12 +1.5%
$8.04 $+0.14 +1.8%
$7.90 $-4.34 -35.5%
$12.24 $+4.23 +52.8%
$8.01 $-1.16 -12.6%
$9.17 $+1.17 +14.6%
$8.00 $-0.01 -0.1%
$8.01 $+0.01 +0.1%
$8.00 $+0.00 +0.0%
$8.00 $+0.00 +0.0%
$8.00 $-0.01 -0.1%
$8.01 $+0.01 +0.1%
$8.00 $-0.01 -0.1%
$8.01 $+0.01 +0.1%
$8.00 $-0.01 -0.1%
$8.01 $+0.01 +0.1%
$8.00 $+0.00 +0.0%
$8.00 $+0.00 +0.0%
$8.00 $+0.00 +0.0%
$8.00 $+0.00 +0.0%
$8.00 $+0.00 +0.0%
$8.00 $+0.00 +0.0%
$8.00 $+0.00 +0.0%
$8.00 $+0.00 +0.0%
$8.00 $+0.00 +0.0%
$8.00 $-0.05 -0.6%
$8.05 $-0.01 -0.1%
$8.06 $+0.05 +0.6%
$8.01 $+0.01 +0.1%
$8.00 $-0.02 -0.2%
$8.02 $+0.02 +0.3%
$8.00 $-0.01 -0.1%
$8.01

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