--- product_id: 668347267 title: "Flex Caulk Hybrid Polymer Waterproof Sealant, Clear, 3 oz, 1-Pack | No caulk gun needed, trigger flow nozzle, paintable, won't shrink or crack, seals wet or dry, bath, kitchen, sink, window, RV" brand: "flex seal" price: "Β₯4157" currency: JPY in_stock: true reviews_count: 8 category: "Flex Seal" url: https://www.desertcart.jp/products/668347267-flex-caulk-hybrid-polymer-waterproof-sealant-clear-3-oz-1 store_origin: JP region: Japan --- # 400 psi tensile strength Waterproof sealant No caulk gun needed Flex Caulk Hybrid Polymer Waterproof Sealant, Clear, 3 oz, 1-Pack | No caulk gun needed, trigger flow nozzle, paintable, won't shrink or crack, seals wet or dry, bath, kitchen, sink, window, RV **Brand:** flex seal **Price:** Β₯4157 **Availability:** βœ… In Stock ## Summary > πŸ’§ Seal it once, seal it right β€” the clear choice for lasting protection! ## Quick Answers - **What is this?** Flex Caulk Hybrid Polymer Waterproof Sealant, Clear, 3 oz, 1-Pack | No caulk gun needed, trigger flow nozzle, paintable, won't shrink or crack, seals wet or dry, bath, kitchen, sink, window, RV by flex seal - **How much does it cost?** Β₯4157 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/668347267-flex-caulk-hybrid-polymer-waterproof-sealant-clear-3-oz-1) ## 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 - β€’ **Durability That Lasts:** Won't shrink, crack, or become brittle over time - β€’ **Eco-Smart Snap & Save Cap:** Eliminates waste and keeps sealant fresh for your next project - β€’ **Ultimate Waterproof Defense:** Seals out water, air, and moisture on wet or dry surfaces - β€’ **Versatile Surface Adherence:** Bonds to virtually any surface including tile, wood, and metal - β€’ **Effortless Precision Application:** Adjustable trigger flow nozzle for mess-free control ## Overview Flex Caulk Hybrid Polymer Waterproof Sealant is a 3 oz clear, paintable sealant designed for professional-grade waterproofing without the hassle of a caulk gun. Featuring a hybrid polymer formula with 400 psi tensile strength, it adheres to wet or dry surfaces, resists UV and chemicals, and prevents shrinking or cracking. Ideal for kitchens, bathrooms, windows, and RVs, it offers precision application with an adjustable trigger nozzle and a waste-reducing Snap & Save cap. ## Description desertcart.com: Flex Caulk Hybrid Polymer Waterproof Sealant, Clear, 3 oz, 1-Pack | No caulk gun needed, trigger flow nozzle, paintable, won't shrink or crack, seals wet or dry, bath, kitchen, sink, window, RV : Industrial & Scientific Review: Exactly what I needed - Late review for honest review - This stuff is great! Already fixed a few horse tubs, bird bath and shows zero leakage, excellent purchase. It’s clear as it dries. Durable and saved a lot of things from the trash! Review: Worth It - Husband loved how easy it was to apply. Seems to be working great too. ## Features - So easy to use. - No caulk gun needed. - Adjustable Trigger Flow Nozzle. - Advanced hybrid polymer formulation. - Snap & Save cap eliminates waste. - Seals out water, air, and moisture. - Adheres to virtually any surface, wet or dry. - Won’t shrink, crack, or become brittle. - UV and chemical resistant. - Fully paintable. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DK9X348H | | Best Sellers Rank | #201 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Adhesive Caulk | | Brand | Flex Seal | | Brand Name | Flex Seal | | Color | Clear | | Customer Reviews | 4.3 out of 5 stars 88 Reviews | | Full Cure Time | 4 hours | | Included Components | Flex Caulk, Clear, 3 oz, 1-Pack | | Item Form | Liquid | | Item Highlight | No caulk gun needed, trigger flow nozzle, paintable, won't shrink or crack, seals wet or dry, bath, kitchen, sink, window, RV | | Liquid Volume | 3 fluid ounces | | Manufacturer | Swift Response, LLC | | Material Type | Hybrid Polymer | | Model | CFSCLRR100 | | Number of Items | 1 | | Part Number | CFSCLRR100 | | Surface Recommendation | Tile | | Tensile Strength | 400 psi | | UPC | 810129870770 | | Unit Count | 3 Fluid Ounces | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Flex Seal - **Color:** Clear - **Full Cure Time:** 4 hours - **Item Form:** Liquid - **Liquid Volume:** 3 fluid ounces ## Images ![Flex Caulk Hybrid Polymer Waterproof Sealant, Clear, 3 oz, 1-Pack | No caulk gun needed, trigger flow nozzle, paintable, won't shrink or crack, seals wet or dry, bath, kitchen, sink, window, RV - Image 1](https://m.media-amazon.com/images/I/61qMmJGTcRL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Exactly what I needed *by A***N on July 20, 2026* Late review for honest review - This stuff is great! Already fixed a few horse tubs, bird bath and shows zero leakage, excellent purchase. It’s clear as it dries. Durable and saved a lot of things from the trash! ### ⭐⭐⭐⭐⭐ Worth It *by B***Y on July 5, 2026* Husband loved how easy it was to apply. Seems to be working great too. ### ⭐⭐⭐⭐ Application was easy. *by M***Y on June 5, 2026* Appears to be as advertised. Application on gutters was easy. I will have to wait until it rains to see how it holds. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/668347267-flex-caulk-hybrid-polymer-waterproof-sealant-clear-3-oz-1](https://www.desertcart.jp/products/668347267-flex-caulk-hybrid-polymer-waterproof-sealant-clear-3-oz-1) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-13*