--- product_id: 556263047 title: "DAP Dynaflex Gutter & Narrow Seam Advanced Elastomeric Waterproofer, White, 4.5 Oz (7079818399)" brand: "dap" price: "$U877" currency: UYU in_stock: true reviews_count: 8 category: "Dap" url: https://www.desertcart.uy/products/556263047-dap-dynaflex-gutter-and-narrow-seam-advanced-elastomeric-waterproofer-white store_origin: UY region: Uruguay --- # 100% waterproof seal Rain ready in 30 mins Withstands extreme temps DAP Dynaflex Gutter & Narrow Seam Advanced Elastomeric Waterproofer, White, 4.5 Oz (7079818399) **Brand:** dap **Price:** $U877 **Availability:** ✅ In Stock ## Summary > 💪 Seal it once, weatherproof it forever! ## Quick Answers - **What is this?** DAP Dynaflex Gutter & Narrow Seam Advanced Elastomeric Waterproofer, White, 4.5 Oz (7079818399) by dap - **How much does it cost?** $U877 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/556263047-dap-dynaflex-gutter-and-narrow-seam-advanced-elastomeric-waterproofer-white) ## Best For - dap enthusiasts ## Why This Product - Trusted dap brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-Surface Mastery:** Adheres flawlessly to gutters, downspouts, flashings, pipes, and more for versatile protection. - • **Effortless Application:** Smooth tooling, low odor, and easy-to-use paste formula boosts your productivity. - • **Extreme Condition Proof:** Engineered to resist UV, temperature swings, and standing water without losing adhesion. - • **Rapid Rain-Ready Formula:** Waterproof and rain-ready in just 30 minutes, so your project stays on schedule. - • **Unbreakable Weather Shield:** Maintains permanent flexibility and durability on exterior surfaces, no cracking or shrinking. ## Overview DAP Dynaflex Gutter & Narrow Seam Waterproofer is a high-performance elastomeric sealant designed for exterior use on gutters, flashings, and narrow seams. It offers 100% waterproof protection, exceptional adhesion to multiple surfaces, and remains flexible and durable under extreme weather and temperature conditions. Rain-ready in 30 minutes, this hybrid polymer paste ensures long-lasting, UV-resistant sealing without cracking, shrinking, or yellowing. ## Description DAP DYNAFLEX Gutter and Narrow Seam Waterproofer is a high-performance, single-component durable, watertight elastomeric product for small joints and narrow seams, in gutter and flashing applications. It is designed to withstand extreme weather and temperature fluctuations without cracking or losing adhesion. Versatile in application, it adheres well to various surfaces, including common gutter, flashing, and roofing materials. Formulated for use in challenging conditions such as cold or high temperatures, wet surfaces, and standing water. Rain ready within 30 minutes without washing out, it is 100% waterproof, weatherproof and UV resistant. For exterior use, product will not harden, yellow, shrink or breakdown over time. It offers excellent workability and improved productivity with an easy-to-apply formula, smooth tooling, low odor, and quick rain readiness. DAP products provide durable performance for a variety of projects. Exterior use. Review: Great sealant. - It worked very well for a small leak on my gutter in the front of my house. Time will tell if it's 100% accurate. Review: Helped me - Works great! ## Features - Maintains extreme durability and permanent flexibility on exterior surfaces - Elastomeric DAP formula has strong multi-surface adhesion and is ideal for gutters, downspouts, lap joints, flashings, pipes, ducts, and more - Stands up to weather and temperature extremes without cracking or losing adhesion - 100% waterproof and weatherproof product stops and prevents leaks in small joints and narrow seams - Water ready in 30 minutes and meets ASTM C719 for dynamic joint movement ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B093X43Y3Y | | Best Sellers Rank | #16,862 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #66 in Hardware Sealers | | Brand | DAP | | Brand Name | DAP | | Color | White | | Compatible Material | Brick, Concrete, Glass, Metal, Plastic | | Customer Reviews | 4.5 out of 5 stars 212 Reviews | | Global Trade Identification Number | 00070798183995 | | Included Components | 1 Tube | | Item Dimensions | 1.5 x 2.4 x 9.4 inches | | Item Form | Paste | | Item Weight | 0.42 Pounds | | Item dimensions L x W x H | 1.5 x 2.4 x 9.4 inches | | Manufacturer | Dap Products | | Material | Hybrid Polymer | | Material Type | Hybrid Polymer | | Model | 7079818399 | | Number of Items | 1 | | Part Number | 7079818399 | | Style | Gutter Sealant | | Style Name | Gutter Sealant | | Surface Recommendation | Exterior | | UPC | 070798183995 | | Unit Count | 4.5 Ounce | | Water Resistance Level | Waterproof | ## Product Details - **Material:** Hybrid Polymer - **Brand:** DAP - **Style:** Gutter Sealant - **Item Weight:** 0.42 Pounds - **Item dimensions L x W x H:** 1.5 x 2.4 x 9.4 inches ## Images ![DAP Dynaflex Gutter & Narrow Seam Advanced Elastomeric Waterproofer, White, 4.5 Oz (7079818399) - Image 1](https://m.media-amazon.com/images/I/61mZZ0l533S.jpg) ![DAP Dynaflex Gutter & Narrow Seam Advanced Elastomeric Waterproofer, White, 4.5 Oz (7079818399) - Image 2](https://m.media-amazon.com/images/I/71KzsnGfv6L.jpg) ![DAP Dynaflex Gutter & Narrow Seam Advanced Elastomeric Waterproofer, White, 4.5 Oz (7079818399) - Image 3](https://m.media-amazon.com/images/I/811+KwlC69L.jpg) ![DAP Dynaflex Gutter & Narrow Seam Advanced Elastomeric Waterproofer, White, 4.5 Oz (7079818399) - Image 4](https://m.media-amazon.com/images/I/718HuUmau6L.jpg) ![DAP Dynaflex Gutter & Narrow Seam Advanced Elastomeric Waterproofer, White, 4.5 Oz (7079818399) - Image 5](https://m.media-amazon.com/images/I/718HPmB8BFL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great sealant. *by H***D on December 12, 2025* It worked very well for a small leak on my gutter in the front of my house. Time will tell if it's 100% accurate. ### ⭐⭐⭐⭐⭐ Helped me *by C***E on March 3, 2026* Works great! ### ⭐⭐⭐⭐⭐ Works great and very easy to use *by H***R on September 1, 2025* This worked 99.99% for a very leaky gutter seam after just one application. A few beads of water were still getting through after the first application so we did it again and then it was 100%. Far easier and cheaper than buying new gutters --- ## 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.uy/products/556263047-dap-dynaflex-gutter-and-narrow-seam-advanced-elastomeric-waterproofer-white](https://www.desertcart.uy/products/556263047-dap-dynaflex-gutter-and-narrow-seam-advanced-elastomeric-waterproofer-white) --- *Product available on Desertcart Uruguay* *Store origin: UY* *Last updated: 2026-05-13*