--- product_id: 214989979 title: "Flex Paste Rubberized Waterproof Sealant Paste, White, Half-Quart, 1-Pack" brand: "flex paste" price: "S/.124" currency: PEN in_stock: true category: "Flex Paste" url: https://www.desertcart.pe/products/214989979-flex-paste-rubberized-waterproof-sealant-paste-white-half-quart-1 store_origin: PE region: Peru --- # Paintable & UV resistant finish Super thick paste fills large gaps instantly 100% waterproof & underwater cure Flex Paste Rubberized Waterproof Sealant Paste, White, Half-Quart, 1-Pack **Brand:** flex paste **Price:** S/.124 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal it, save it, style it — the ultimate fix-it paste for every pro and DIYer! ## Quick Answers - **What is this?** Flex Paste Rubberized Waterproof Sealant Paste, White, Half-Quart, 1-Pack by flex paste - **How much does it cost?** S/.124 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/214989979-flex-paste-rubberized-waterproof-sealant-paste-white-half-quart-1) ## Best For - flex paste enthusiasts ## Why This Product - Trusted flex paste brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Custom Finish:** Once cured, paint over it to match any surface and maintain UV resistance for lasting protection. - • **Seal Like a Pro:** Creates a flexible, watertight rubber barrier that blocks air, water, and moisture. - • **Versatile & Durable:** Ideal for indoor/outdoor use on metal, wood, concrete, and more—prevents rust and corrosion. - • **Underwater Application:** Unique formula cures underwater—perfect for emergency fixes and tough environments. - • **Max Coverage, Minimal Waste:** Stay Fresh container locks in product freshness, extending sealing power with zero waste. ## Overview Flex Paste Rubberized Waterproof Sealant Paste is a super thick, white rubberized compound designed to fill large cracks, holes, and gaps. It cures into a flexible, watertight barrier that works even underwater and is fully paintable with UV resistance. Packaged in a Stay Fresh container to prevent waste, it’s perfect for a wide range of indoor and outdoor repairs on materials like metal, wood, concrete, and more. ## Description Flex Paste Rubberized Waterproof Sealant Paste, White, Half-Quart, 1-Pack | Super thick rubber paste, fills gaps, cracks, holes, works underwater, paintable, UV resistant, walls, drywall, roof, RV - desertcart.com ## Features - NEW! STAY FRESH CONTAINER – Blocks out air and locks in freshness to extend the sealing power of Flex Paste, with no waste - COAT, SEAL & PROTECT - Penetrates deep to seal out air, water, and moisture. Once dry, it turns into a strong, flexible, watertight, rubberized barrier - WORKS UNDERWATER - Can be applied underwater, and it even dries underwater - FILLS LARGE AREAS - Super thick rubber paste clings to the surface and instantly fills large gaps, cracks, and holes - FULLY PAINTABLE - Once fully cured, it can be painted any color. Helps prevent rust and corrosion, and it is UV resistant - EXCELLENT FOR – filling cracks and holes, foundation and concrete repairs, sealing out rodents and pests, bath and shower, indoor and outdoor projects, roof, RV, motorhome, auto, marine, lawn and garden projects, DIY, hobbies, and more - MADE IN THE USA ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B084TDJLKT | | Best Sellers Rank | #9,589 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #35 in Hardware Sealers | | Brand Name | Flex Paste | | Color | White | | Compatible Material | Aluminum, Ceramic, Glass, Metal, Polyvinyl Chloride, Wood | | Customer Reviews | 4.0 4.0 out of 5 stars (6,070) | | Included Components | Household Item | | Item Dimensions | 4.25 x 4.25 x 2.5 inches | | Item Form | Paste | | Item Highlight | Super thick rubber paste, fills gaps, cracks, holes, works underwater, paintable, UV resistant, walls, drywall, roof, RV | | Item Type Name | Flex Paste 1 lb Jar (White) | | Item Weight | 16 ounces | | Manufacturer | Swift Response, LLC | | Material Type | Rubber | | Model | FLEX SEAL - PFSWHTR16 - WHITE | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | PFSWHTR16 | | Style Name | 1 lb White | | Surface Recommendation | Roof | | UPC | 850010226835 | | Unit Count | 16 Ounce | | Warranty Description | 1 Year Limited | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Flex Paste - **Item Weight:** 16 ounces - **Item dimensions L x W x H:** 4.25 x 4.25 x 2.5 inches - **Material:** Rubber - **Style:** 1 lb White ## Images ![Flex Paste Rubberized Waterproof Sealant Paste, White, Half-Quart, 1-Pack - Image 1](https://m.media-amazon.com/images/I/41Cl0qKBpJL.jpg) ![Flex Paste Rubberized Waterproof Sealant Paste, White, Half-Quart, 1-Pack - Image 2](https://m.media-amazon.com/images/I/41QU2Neh9LL.jpg) ![Flex Paste Rubberized Waterproof Sealant Paste, White, Half-Quart, 1-Pack - Image 3](https://m.media-amazon.com/images/I/41IAFmM1e2L.jpg) ![Flex Paste Rubberized Waterproof Sealant Paste, White, Half-Quart, 1-Pack - Image 4](https://m.media-amazon.com/images/I/41OqOGgYzLL.jpg) ![Flex Paste Rubberized Waterproof Sealant Paste, White, Half-Quart, 1-Pack - Image 5](https://m.media-amazon.com/images/I/41bFQCL7VlL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Can this be used on flexible surfaces?** A: Depends on how flexible. It has to be able to adhere to the surface. It cures the same as rubber in a tire. There is some give. **Q: Seal wet surface** A: Hello there. That's an excellent question. Flex Paste can be applied to dry or wet surfaces and even underwater. It does not dissolve, creating a watertight seal. Thank you very much for reaching out to us with your question. Please write to us anytime. We're always happy to help. Flex On! **Q: Flex seal pasta can it be used on curved surfaces?** A: Yes it can be used on any curved and even upside down surface but if ordering on-line, if you open the can and the edges are turning hard return it ASAP because chances is it's hard on bottom as-well and you don't get your money worth **Q: Can I use in a in ground swimming pool to repair a crack** A: Yes, it can be applied underwater. It won’t dissolve or wash away. It even dries underwater! Flex Paste is easy to use. With a putty knife, trowel, spatula, roller, or stiff brush remove a smooth even layer of material from the top of the tub. Scooping deeply into the tub may cause air pockets which can dry FLEX PASTE. Apply a generous amount using a smooth sweeping motion. ## Frequently Bought Together - Flex Paste, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Half-Quart - Flex Seal, 14 oz, Clear, Stop Leaks Instantly, Transparent Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More --- ## 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.pe/products/214989979-flex-paste-rubberized-waterproof-sealant-paste-white-half-quart-1](https://www.desertcart.pe/products/214989979-flex-paste-rubberized-waterproof-sealant-paste-white-half-quart-1) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-09-11*