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Item #:
84062477
Flex Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV,
85% of respondents would recommend this to a friend
Item #:
84062477
€ 49
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
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Imported from USA store
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Order now and get it around Tuesday, August 18
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What Stands Out
Versatile Application
Designed for both indoor and outdoor use, this caulk effectively seals gaps in bathrooms, kitchens, and around windows or doors, meeting diverse sealing needs.
Waterproof Protection
Premium hybrid polymer technology provides a strong, waterproof seal against moisture, preventing damage from leaks and enhancing durability in various environments.
Paintable Finish
Allows for seamless integration with surrounding surfaces; after curing, it can be painted over, ensuring aesthetic consistency without compromising functionality.
Product Details
| Brand Name | Flex Seal |
| Number of Items | 1 |
| Manufacturer | Swift Response, LLC |
| UPC | 810129870770 |
| Unit Count | 3.0 Fluid Ounces |
| Model | CFSCLRR100 |
| Part Number | CFSCLRR100 |
| Included Components | Flex Caulk, Clear, 3 oz, 1-Pack |
| Full Cure Time | 4 Hours |
| Surface Recommendation | Tile |
| Tensile Strength | 400 Pounds Per Square Inch (1016 cm) |
| Water Resistance Level | Waterproof |
| Color | Clear |
| Item Form | Liquid |
| Liquid Volume | 3 Fluid Ounces |
| Material Type | Hybrid Polymer |
| Brand | Flex Seal |
| Package Weight | 3.04 Pound (1.38 kg) |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
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Homeowners
Ideal for sealing gaps and cracks around windows, doors, and baseboards to enhance insulation and prevent water damage.
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DIY Enthusiasts
Perfect for various indoor and outdoor projects, providing strong adhesion and flexibility for a range of materials.
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Bathroom Users
Designed to withstand moisture, making it excellent for use in bathrooms around sinks, showers, and tubs.
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Professional Contractors
May not meet specialized sealing requirements in high-demand commercial projects where higher performance sealants are needed.
Product Description
Flex Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, Clear, 3 oz, 1-Pack
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Customer Questions & Answers
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Question:
What is Flex Caulk made of?
Answer: Flex Caulk is formulated with a hybrid polymer blend that provides impressive adhesive properties while being both waterproof and weatherproof. This unique formulation makes it ideal for various applications, whether indoors or outdoors. The hybrid technology allows for expansion and contraction with temperature changes, ensuring a robust seal even in varying climates. Use it in environments like bathrooms, kitchens, or outdoor settings to prevent water damage and air leaks. -
Question:
Can I paint over Flex Caulk?
Answer: Yes, Flex Caulk is paintable, allowing for seamless integration with your interior design. Once it cures, you can apply paint directly on it without compromising its performance. This feature is particularly beneficial for finish work around door frames, windows, or baseboards where you want a uniform appearance. Remember to wait for the caulk to dry completely before painting to achieve the best results. -
Question:
Where can I use Flex Caulk?
Answer: Flex Caulk is versatile and can be applied in numerous settings, including baths, showers, sinks, windows, and even on baseboards and doors. Its waterproof and weatherproof characteristics make it perfect for both indoor and outdoor applications. Whether sealing gaps in your bathroom or ensuring outdoor fixtures are secure against the elements, this caulk provides reliable performance across various locations. -
Question:
Is Flex Caulk suitable for outdoor use?
Answer: Absolutely! Flex Caulk's weatherproof properties make it an excellent choice for outdoor applications. It can effectively seal areas exposed to moisture and temperature fluctuations, such as around doors, windows, and exterior fittings. Its durability ensures that your seals remain intact despite harsh outdoor conditions, preventing water intrusion and promoting energy efficiency. -
Question:
How long does it take Flex Caulk to cure?
Answer: Flex Caulk typically requires a curing time of 24 hours to reach its full stability and effectiveness. However, initial skinning may occur within the first few hours of application, allowing for minor adjustments. For best results, allow it to cure fully before exposing it to water or stress. This ensures a strong, durable seal that will hold up in various conditions. -
Question:
Can I use Flex Caulk in bathrooms?
Answer: Yes, Flex Caulk is an ideal choice for bathroom applications. Its waterproof formula ensures that it holds up well in high moisture areas such as showers and around sinks. It helps prevent water damage and mold growth, making it a practical solution for ensuring a long-lasting seal where it matters most. Use it around fixtures to create a watertight barrier. -
Question:
How does Flex Caulk compare to traditional caulks?
Answer: Flex Caulk offers superior performance compared to traditional caulks through its hybrid polymer formula, providing enhanced flexibility and durability. While standard caulks can crack or break under temperature fluctuations, Flex Caulk remains resilient. This flexibility makes it suitable for both indoor and outdoor use, making it a smarter choice for demanding applications. -
Question:
Can I seal gaps in my baseboards with Flex Caulk?
Answer: Yes, Flex Caulk is perfect for sealing gaps in baseboards. Its paintable finish ensures that you can match the color of your walls or flooring seamlessly, enhancing the overall aesthetics of your home. Additionally, it helps block dust and allergens while providing a tight seal against moisture, which is vital for prolonging the life of your baseboards. -
Question:
Is Flex Caulk safe for use around food areas?
Answer: Flex Caulk is designed for various applications, including kitchen areas, as it is generally safe once fully cured. It prevents moisture from penetrating between areas and helps ensure cleanliness around sinks. Always check the product label for specific guidelines on usage near food preparation areas, and allow it to cure completely before using the area to ensure safety. -
Question:
Where can I buy Flex Caulk?
Answer: You can buy Flex Caulk from Ubuy in Ireland. Ubuy offers a convenient shopping experience, allowing you to find this versatile sealant along with detailed product specifications and user reviews. It’s a reliable source for purchasing quality home improvement products, ensuring you can access everything you need for your sealing projects.
Flex Seal Adhesive Caulk Editorial Review
The Flex Caulk is a versatile product made in the USA using globally sourced materials. It is suitable for various applications such as pool plaster crack repairs, filling gaps between concrete roof tiles and chimneys, sealing around windows, and even for use underwater. The caulk is UV resistant, withstanding temperatures from -40°F up to 200°F, making it ideal for outdoor use. It fully cures in 24 to 48 hours. Customer reviews of the Flex Caulk are mostly positive, with users praising its ease of use and effectiveness in sealing gaps and cracks. One customer mentioned successfully filling a large gap around a window frame without needing a caulking gun. However, there was a negative review about the top coming off unexpectedly, causing a mess. Overall, the Flex Caulk seems to be a popular choice for DIY enthusiasts looking for a reliable caulk that is easy to apply and provides a neat finish. **
Customer Reviews & Ratings
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Pros
- Made in the USA with globally sourced materials
- Versatile use for various applications
- UV resistant and suitable for outdoor use
- Easy to apply and control the flow
- No need for a caulking gun
Cons
- Potential issue with the top coming off unexpectedly
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
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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
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kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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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
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SAO JOHN
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“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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€ 49
Order now and get it around Tuesday, August 18
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Features & Benefits
- No caulk gun needed. Simply push the trigger to release the caulk.
- Adjustable Trigger-Flow Nozzle for perfect bead size.
- Won’t shrink, crack, or become brittle.
- 100% waterproof, weatherproof, chemical and UV resistant.
- Can be applied to wet and dry surfaces, even underwater.
- Fully paintable and made in the USA.
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