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Flex Seal

Flex Seal Flex Paste, Super Thick Rubber Paste, Caulk Sealant Leak Protector, Black or White, 9-FL OZ./270 mL

Name: Flex Seal Flex Paste, Super Thick Rubber Paste, Caulk Sealant Leak Protector, Black or White, 9-FL OZ./270 mL
Brand: Flex Seal

#064-1591-4

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$21.99

Top Rated

Colour:

Black

Black
White

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Pick up at Leduc, AB

26 In Stock

Pick up available 08:00 a.m., Dec 04

Also Find It in Store:

26 In Stock at Leduc, AB

Aisle 33

Quebec residents: For information on maintenance and repair click here.

Flex Seal

Flex Seal Flex Paste, Super Thick Rubber Paste, Caulk Sealant Leak Protector, Black or White, 9-FL OZ./270 mL

$21.99

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Flex Seal Flex Paste, Super Thick Rubber Paste, Caulk Sealant Leak Protector, Black or White, 9-FL OZ./270 mL

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Product Details

This Flex Seal Flex Paste is a super thick rubberized paste that you can spread, shape, form and seal virtually everything. It starts out as a thick paste and dries to a strong, flexible, waterproof barrier that can be applied to all types of surfaces to seal out air, water and moisture. It clings to the surface and instantly fills large gaps, cracks and holes. It won’t shrink or wash away and can be painted any colour. It can be applied on dry or wet surfaces, even underwater.

This Flex Paste Cartridge fills large gaps and holes
Strong, flexible, super thick rubberized paste
Shape to take on any form
Push into hard to reach areas
Can be applied onto wet or dry surfaces
Paint over coating once dry
Never shrinks
Non-flammable
UV, chemical and mildew resistant
Works on: Wood, glass, tile, concrete, aluminum, metal, brick, stucco, masonry, copper, fabric, fibreglass, ceramic, porcelain, natural stones, roofing, PVC, EIFS, EPDM, CSPE, Hypalon polyurethanes and much more
Applications include fixing cracks and holes, sealing out rodents and pests, auto repairs and boat repairs, RV and motorhome repairs and more
Net weight: 9 FL OZ. (270 mL)
Available in white or black

Part Number	PFSBLKC10
Chemical Form	Paste
Primary Material	Not Applicable
Colour	Black
Product Volume (L)	0.27 l
Package Form	Tube
Flammable	No
Non-toxic When Used as Intended	No
Product Use(s)	All-Purpose
Advanced Features	No Advanced Features

Product Height (in)	11.25 in
Package Width (in)	3.00 in
Product Weight (lb)	0.56 lb

Warranty

This product carries a 1 year exchange warranty redeemable at any Canadian Tire store.

Online Ordering

Pick Up is free at most stores (some stores require a minimum order value before tax)
Shipping fee is based on size and weight of products and distance from address to store
Same-Day Delivery costs $9.99 per order
Online Ordering Information

Returns

Most products can be returned or exchanged at any Canadian Tire store within 90 days of purchase
Some products are non-refundable and non-exchangeable
The return policy outlined above may not apply to the product you are currently viewing. For complete details and eligibility, please refer to our Return Policy for exceptions.

	Only Show Differences	Currently Viewing Flex Seal Flex Paste, Super Thick Rubber Paste, Caulk Sealant Leak Protector, Black or White, 9-FL OZ./270 mL From $21.99	Flex Seal Flex Paste, Super Thick Rubber Paste, Moldable Leak Protector Sealant, Assorted Colours, 1-lb From $21.99	Flex Seal Flex Paste Super Thick Rubber Paste, Moldable Leak Protector Sealant, White, 3-lb/1.36 kg $39.99	Flex Seal Flex Paste Super Thick Rubber Paste, Moldable Leak Protector Sealant, Black, 3-lb $39.99
Ratings
Chemical Form	Paste	Paste	Paste	Paste
Primary Material	Not Applicable	Not Applicable	Not Applicable	Not Applicable
Product Volume (L)	0.27 l	0.45 l	1.36 l	1.36 l

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Review Highlights

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380 reviews with 5 stars.

94 reviews with 4 stars.

40 reviews with 3 stars.

23 reviews with 2 stars.

17 reviews with 1 star.

Overall Rating

4.4

360 out of 387 (93%) reviewers recommend this product

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1 to 5 of 554 Reviews

1 – 5 of 554 Reviews

5 out of 5 stars.

Great product

25 days ago

Works great i used this to seal some gaps in the plastic of my side by side and works great

Helpful?

1 out of 5 stars.

Poor design

a month ago

The idea of applying a paste with a caulking gun sounds great, but the product is too thick to work like this. You may be able to get a very thin line of paste with a lot of effort but it's not really worth the effort or expense. Hard pass.

Helpful?

Response from Customer Service:

29 days ago

Customer Service

Hi there. Your feedback is much appreciated, as it is our greatest resource. We're sorry to hear you received cured product and completely understand how frustrating it may be. Rest assured, this is not the experience we want for our customers. When you get a chance, send us an email at humans@flexsealproducts.com mentioning this review. We look forward to hearing from you.

5 out of 5 stars.

flex seal

a month ago

we will see how it works. easy to install.

Helpful?

1 out of 5 stars.

Disappointed

2 months ago

It could be great for some situations but I wanted it to seal the wood along a window frame. It set too fast for me to smooth it and it can’t be sanded once set.

Helpful?

Response from Customer Service:

a month ago

Customer Service

Hi. We're sorry to hear your application did not meet your project needs. We assure you, this is not the experience we want for our customers. When you get a chance, send us an email at humans@flexsealproducts.com mentioning this review. We're here to help.

5 out of 5 stars.

Flex Seal

3 months ago

Excellent quality product

Helpful?

1 – 5 of 554 Reviews

Next Reviews

Questions

1 - 4 of 4 Questions

Q: I have to seal a hole of 2cm between outdoor polypropylene catchbasin and iron drain pipe. The hole sits below water in summer. In winter,the water becomes ice and the outdoor temperature can be -28 degree celcius. Can Flex Paste serve?

3 years ago

2 Answers

A: did this work for you?
a year ago
Helpful?

Q: would this work to seal concrete, asphalt, etc.?

3 years ago

2 Answers

A: Hi there! Thank you for reaching out and for your interest in our products. If the area is dry and clean, Flex Paste should work for this type of repair. We would still like to get some more information and pictures of the repair, if possible, before giving you a specific recommendation. Please send us an email at Humans@FlexSealProducts.com, and we'd be happy to give you some advice on this!
3 years ago
Helpful?

Q: Will this stick to dried flex seal liquid?

2 years ago

1 Answer

A: Hello Jason, we do not recommend applying Flex Paste on top of Flex Seal Liquid. If we can help answer any questions on any future DIY repairs, please feel free to email us at humans@flexsealproducts.com. FLEX ON!
2 years ago
Helpful?

Q: Have a Crack in the sole of my boot will this product fill and dry solid.

2 years ago

1 Answer

A: Hey there, Harv! We don't recommend Flex Paste for this, but Flex Glue can help! Many customers have used it for this kind of repair. Since shoes can be made out of a whole variety of materials, we recommend testing a small area out first. For best results: Make sure the surface is clean Apply firm pressure for a minimum of 10-30 seconds Allow glue to cure for 24 hours If you need anything else or have additional questions, send us an email to Humans@FlexSealProducts.com. We're always here to help!
2 years ago
Helpful?

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^†Our Lowest Prices of the Year are defined as the period between January 1–December 31, 2025. Offer excludes localized promotions including but not limited to Grand Openings.

△The tire producer / manufacturer of the tires you are buying, and Canadian Tire is responsible for the recycling fee that is included in your invoice. The tire producer / manufacturer and Canadian Tire uses this fee to pay for the collection, transportation, and processing of used tires.

CANADIAN TIRE® and the CANADIAN TIRE Triangle Design are registered trade-marks of Canadian Tire Corporation, Limited.

^±Was price reflects the last national regular price this product was sold for.

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If your average balance is:	Total monthly credit charges will be:
$100	$1.81
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$1000	$18.07
$2000	$36.15

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^‡‡Shipping fees apply. Shipping fees and delivery times vary depending on location, size and weight of the item(s) and is only available within the province of the Canadian Tire retail location (“Store”) from which the item(s) was purchased. Bulk items will only be delivered within a 100km radius of the Store. Not available in Recontre East, NL. Conditions and restrictions apply. Visit Online Ordering for more information.

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◊Off our original price. Quantities may vary by store. Some clearance product and price points may not be available at all locations.
± Was price reflects the last national regular price this product was sold for

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*Terms and conditions apply to collecting and redeeming. Visit triangle.com for full program rules. Ordinarily you are not able to collect Canadian Tire Money® (CT Money®) on that portion of a transaction in respect of which you redeemed CT Money, but can do so with this special offer. You may redeem for the full purchase price in CT Money to a maximum of $1,000 but bonus CT Money is calculated only on the pre-tax amount. Special offer not valid for Gift Card purchases. Pre-tax purchase. Bonus applied to maximum redemption of $1,000. No rainchecks.

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* Offer begins at 12:00 a.m. Central Time (“CT”) on November 26, 2025 and ends at 11:59 p.m. CT on December 7, 2025 (“Promotion Period”). Valid only on qualifying purchases of 5-litre bottles of Pennzoil® Full Synthetic motor oil products made in-store at participating Canadian Tire retail locations in Canada or online at canadiantire.ca during the Promotion Period. Qualifying purchase must be made in one transaction. Void where prohibited or otherwise restricted by law. The total maximum rebate possible is $30 per person, household or address (e-mail and physical). All online submissions must be completed by 11:59 p.m. CT on December 22, 2025. An original printed retailer identified and dated purchase receipt showing the required qualifying Pennzoil® Full Synthetic motor oil purchase (brand and product required on receipt) during the Promotion Period must accompany all submissions. NOTE: For purchases made on a participating retailer’s online website, the purchase receipt (defined above), with the order confirmation/order number, as well as the shipping confirmation or final delivery/pick-up receipt is required. Submissions without this proof of purchase will be denied. Orders that are canceled and/or product returns are ineligible for this offer. Purchases by an installer for use in its business do not qualify for this offer. Bulk submissions or bundled submissions by retailers, or any other entity, on behalf of consumers, are not permitted. Case purchases of qualifying product in any pack size do not qualify for this offer. Shell Canada Products reserves the right to cancel, rescind, modify or extend this offer, in whole or in part, at any time without notice. Cannot be combined with any other Shell Canada Products promotion. Allow up to 8 weeks for mailing of your rebate if you choose to receive a physical check. Offer valid only in Canada. Other restrictions apply. To view a list of participating locations and full terms and conditions, please visit www.pennzoil.ca/rebate.
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