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Item #:
247330317
Flex Seal Liquid Rubber Sealant Coating, Waterproof, Black, 320 oz
85% of respondents would recommend this to a friend
Item #:
247330317
€ 274
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
4%
In stock
Imported from USA store
QTY:
Order now and get it around Thursday, September 10
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Flex Seal Liquid MAX is your all-in-one solution for a watertight, flexible rubberized coating!
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Product Details
| Brand Name | Flex Seal Liquid |
| UPC | 850017897434 |
| Unit Count | 320 Fluid Ounces |
| Global Trade Identification Number | 00850017897434 |
| Number of Items | 1 |
| Included Components | Item |
| Item Type Name | Flex Liquid MAX Black 2.5 Gallons |
| Manufacturer | Swift Response, LLC |
| Model | LFSMAXBLK02 |
| Part Number | LFSMAXBLK02 |
| Item Weight | 20 pounds (9.07 kg) |
| Item Dimensions | 10.5 x 10 x 10 inches (26.7 x 25.4 x 25.4 cm) |
| Water Resistance Level | Waterproof |
| Item Form | Liquid |
| Compatible Material | Rubber |
| Style Name | Liquid Rubber |
| Color | Black |
| Surface Recommendation | Roof |
| Material Type | Rubber |
| Material | Rubber |
| Brand | Flex Seal Liquid |
| Style | Liquid Rubber |
| Item dimensions L x W x H | 10.5 x 10 x 10 inches (26.7 x 25.4 x 25.4 cm) |
What's in the box
Item
Product Description
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Customer Questions & Answers
-
Question:
What is Flex Seal Liquid MAX and what are its primary features?
Answer: Flex Seal Liquid MAX is a powerful liquid rubber coating sealant designed for robust waterproofing and effective repairs. This product is breathable, UV resistant, and flexible, which allows it to expand and contract with surfaces. It's perfect for roof repairs, treating basements against moisture, and tackling various other DIY projects. The 2.5-gallon size ensures you have enough product to cover large areas, making it ideal for extensive repairs or multiple smaller jobs. -
Question:
How does Flex Seal Liquid MAX work for waterproofing?
Answer: Flex Seal Liquid MAX creates a watertight seal by forming a thick, rubberized layer on surfaces. This coating adheres to most materials, preventing water from penetrating through cracks and holes. It’s particularly effective in basements and roofing applications where moisture is a concern. By applying a generous layer of the sealant, you can safeguard your structures from water damage, mold, and mildew while enhancing their longevity. -
Question:
Can Flex Seal Liquid MAX be used on different surfaces?
Answer: Yes, Flex Seal Liquid MAX is versatile and can be applied to various surfaces including metal, wood, concrete, and plastic. Its strong adhesion properties ensure that it bonds effectively, providing a flexible and durable seal. This makes it ideal for diverse applications such as repairing roofs, sealing around windows and doors, or even fixing gutters. Always ensure the surface is clean and dry for optimal adhesion. -
Question:
What is the drying time for Flex Seal Liquid MAX?
Answer: Flex Seal Liquid MAX typically dries to the touch within 2-3 hours, but full curing can take up to 24-48 hours depending on environmental conditions. Factors such as humidity and temperature can affect the drying process. For best results, it's advisable to apply it in moderate temperatures and low humidity levels. This allows the product to fully bond and create a robust seal for long-lasting protection. -
Question:
Is Flex Seal Liquid MAX safe for indoor use?
Answer: Flex Seal Liquid MAX is safe for indoor use once it has fully cured. While applying the sealant, you should ensure proper ventilation to minimize inhalation of fumes. After it dries, the coating is non-toxic and provides a safe seal against moisture. This makes it suitable for projects in basements and bathrooms where water exposure is common, allowing you to work confidently indoors. -
Question:
How do I apply Flex Seal Liquid MAX effectively?
Answer: For effective application, start by cleaning the surface to remove dirt, grease, and loose debris. Use a brush, roller, or sponge to apply an even coat of Flex Seal Liquid MAX, ensuring you cover any cracks or seams thoroughly. It's recommended to apply multiple coats for maximum effectiveness, allowing each layer to dry before adding the next. This method is particularly useful for sealing roofs or repairing larger areas. -
Question:
Can Flex Seal Liquid MAX be painted over?
Answer: Yes, Flex Seal Liquid MAX can be painted over once it has fully cured. For the best results, use a water-based paint that adheres well to rubberized surfaces. Painting over the sealant can enhance aesthetics and provide an extra layer of protection against UV rays. This is particularly advantageous for outdoor applications on roofs or any surface exposed to sun and weather. -
Question:
How can I store unused Flex Seal Liquid MAX?
Answer: To store any unused Flex Seal Liquid MAX, ensure the lid is tightly sealed to prevent air exposure, which can cause the liquid to clump. Keep it in a cool, dry place away from sunlight and extreme temperatures. Proper storage can prolong the shelf life of the product, making it usable for future projects or repairs when the need arises. -
Question:
What are the advantages of using Flex Seal Liquid MAX over traditional sealants?
Answer: Flex Seal Liquid MAX offers several advantages over traditional sealants, including superior flexibility, UV resistance, and breathability. Unlike hard sealants that may crack over time, Flex Seal remains flexible, adapting to surface movements. This is particularly beneficial in areas prone to temperature fluctuations and moisture. Additionally, its liquid form allows it to penetrate into cracks better, providing a more effective seal. -
Question:
Where can I buy Flex Seal Liquid MAX in Finland?
Answer: You can purchase Flex Seal Liquid MAX, 2.5 Gallon, Black at Ubuy in Finland. Ubuy offers a wide selection of home improvement products, ensuring you can find the right sealant for your specific needs. With Ubuy, you'll benefit from fast and reliable service, making it a convenient option for acquiring this essential liquid rubber coating sealant.
Flex Seal Liquid Sealers Editorial Review
Flex Seal Liquid Rubber Sealant Coating, Waterproof, Black, 320 oz is an exceptional solution for sealing and waterproofing various surfaces. Customers have praised its effectiveness in stopping leaks; one user successfully sealed a leaky balcony, eliminating issues during heavy rain, which demonstrates its waterproof capabilities. With a thick rubberized liquid form that's versatile, it can be brushed, rolled, dipped, or poured, providing a strong, watertight seal ideal for roofs, basements, and more. This product is not just for DIY enthusiasts but also professionals seeking reliable materials for repairs.
Customer Reviews & Ratings
119 customers ratings
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5 Star
70%
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4 Star
11%
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3 Star
9%
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2 Star
2%
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1 Star
8%
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Pros
- Effective waterproofing for various projects
- Easy application with multiple methods available
- Flexible and durable once dried
- Great coverage with a 2.5-gallon size
- Resistant to UV, mildew, and chemicals
Cons
- May change color over time when exposed to sunlight
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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€ 274
Order now and get it around Thursday, September 10
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Convenient 2.5-gallon size for professional use.
- Versatile application: brush, roll, dip, or pour.
- Creates a watertight seal that is flexible and durable.
- Fast coverage that protects against water, air, and moisture.
- UV and chemical resistant for long-lasting performance.
- Ideal for roofs, basements, RVs, trailers, and more.
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