--- product_id: 296630000 title: "Flex Paste 3lb (Black) Tub with Allway Tools Putty Knives 3-Pack (1.5/2/3-Inch) (2 Items)" brand: "flex seal" price: "€ 234.58" currency: EUR in_stock: true reviews_count: 5 category: "Flex Seal" url: https://www.desertcart.pt/products/296630000-flex-paste-3lb-black-tub-with-allway-tools-putty-knives store_origin: PT region: Portugal --- # Waterproof & moisture-sealing formula 3 versatile polypropylene putty knives 3lb super-thick rubberized paste Flex Paste 3lb (Black) Tub with Allway Tools Putty Knives 3-Pack (1.5/2/3-Inch) (2 Items) **Brand:** flex seal **Price:** € 234.58 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal it, fix it, own it — the ultimate repair duo for pros and DIYers alike! ## Quick Answers - **What is this?** Flex Paste 3lb (Black) Tub with Allway Tools Putty Knives 3-Pack (1.5/2/3-Inch) (2 Items) by flex seal - **How much does it cost?** € 234.58 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/296630000-flex-paste-3lb-black-tub-with-allway-tools-putty-knives) ## Best For - flex seal enthusiasts ## Why This Product - Trusted flex seal brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Weather Ready:** Perfect for indoor & outdoor projects, withstands harsh conditions - • **Instant Gap Filler:** Super-thick Flex Paste clings and fills large cracks & holes immediately - • **Unmatched Durability:** Seals out water and moisture, cures even underwater for lasting repairs - • **Precision Application:** 3-pack putty knives (1.5/2/3-inch) for flawless spreading and scraping - • **Pro-Grade Tools Included:** Durable polypropylene knives built to handle any repair challenge ## Overview Flex Seal Flex Paste 3lb (Black) is a super-thick, rubberized paste designed to instantly fill and seal large gaps, cracks, and holes. It provides a waterproof, moisture-resistant barrier that cures even underwater. This bundle includes a set of three durable polypropylene putty knives (1.5, 2, and 3 inches) for precise application, making it ideal for all indoor and outdoor repair projects. ## Description Flex Seal Flex Paste 3lb Tub (Black) Super-thick rubberized paste that clings to the surface Instantly fills large gaps, cracks and holes Seals out air, water and moisture For all types of indoor and outdoor projects and repairs Allway Tools DS-3PKS Polypropylene Putty Knife Set (3-Pack) Includes 1 1/2-inch, 2-inch and 3-inch putty knife Made of polypropylene material Review: Worked out well Review: I purchased this in Jan 2022. I had never opened or used it and went to use it today Dec 2023. I realise it is nearly two years later however I had never so much as even opened the lid. When I opened it the product had set within the tub. The foil liner inside apparently does nothing. I also had this stored inside a sealed plastic crate inside my garage so the sun had not been hitting it. So I paid 103 Australian dollars for a lump of unusuable rubber. ## Features - BUNDLE INCLUDES: Flex Seal Flex Paste 3lb Jar (Black) with Allway Tools DS-3PKS Polypropylene Putty Knife Set (3-Pack) - FLEX SEAL PASTE: Flex Paste is a super-thick rubberized paste that clings to the surface and instantly fills large gaps, cracks and holes. - DURABLE: This paste seals out water and moisture This super thick formula will not wash away, and will even cure underwater. - PUTTY KNIFE SET: The DS-3PKS Putty Knife Set from Allway Tools is perfect for all your scraping surfaces or spreading material in various activities - DURABLE: These knives are strong enough to withstand everything your activities have to offer. This set includes 1 1/2-inch, 2-inch and 3-inch putty knife ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08JWQDGJ6 | | Brand Name | Flex Seal | | Customer Reviews | 4.1 4.1 out of 5 stars (425) | | Handle Material | Polypropylene (PP) | | Item Dimensions L x W | 25.9L x 21.1W centimeters | | Item Weight | 1 Pounds | | Manufacturer | Flex Seal | | Manufacturer Part Number | PFSBLKR32 | | Model Number | PFSBLKR32 | ## Product Details - **Brand:** Flex Seal - **Handle material:** Polypropylene (PP) - **Item weight:** 454 g - **Manufacturer:** Flex Seal - **Product dimensions:** 25.9L x 21.1W centimeters ## Images ![Flex Paste 3lb (Black) Tub with Allway Tools Putty Knives 3-Pack (1.5/2/3-Inch) (2 Items) - Image 1](https://m.media-amazon.com/images/I/71dlGufIwWL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by J***Z on 24 January 2026* Worked out well ### ⭐ Review *by S***N on 3 December 2023* I purchased this in Jan 2022. I had never opened or used it and went to use it today Dec 2023. I realise it is nearly two years later however I had never so much as even opened the lid. When I opened it the product had set within the tub. The foil liner inside apparently does nothing. I also had this stored inside a sealed plastic crate inside my garage so the sun had not been hitting it. So I paid 103 Australian dollars for a lump of unusuable rubber. ### ⭐⭐⭐⭐ Review *by P***Y on 5 March 2023* This stuff really works. It sticks tenaciously to everything and is watertight. Cures fast. I’ve used it twice now and will not use anything else when I want to avoid leaks. Dropped one star because it arrived with a layer of cured material on the top of the new unopened bucket so 20% was not useable. ## Frequently Bought Together - Flex Seal Flex Paste 3lb (Black) Tub with Allway Tools Putty Knives 3-Pack (1.5/2/3-Inch) (2 Items) - Flex Seal 2-Pack Black 17oz Stop Leaks Instantly, Waterproof Sealant Coating For Gutters, RV, Roof, Skylights, Windows - Flex Tape, 4 in x 5 ft, Gray, Original Thick Flexible Rubberized Waterproof Tape - Seal and Patch Leaks, Works Underwater, Indoor Outdoor Projects - Home RV Roof Plumbing and Pool Repairs --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/296630000-flex-paste-3lb-black-tub-with-allway-tools-putty-knives](https://www.desertcart.pt/products/296630000-flex-paste-3lb-black-tub-with-allway-tools-putty-knives) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-08*