--- product_id: 234733057 title: "Flex Paste Rubberized Waterproof Sealant Paste, White, Cartridge, 1-Pack" brand: "flex paste" price: "NZ$56" currency: NZD in_stock: true category: "Flex Paste" url: https://www.desertcart.nz/products/234733057-flex-paste-rubberized-waterproof-sealant-paste-white-cartridge-1-pack store_origin: NZ region: New Zealand --- # Dries & works underwater Fills large gaps & cracks Waterproof & UV resistant Flex Paste Rubberized Waterproof Sealant Paste, White, Cartridge, 1-Pack **Brand:** flex paste **Price:** NZ$56 **Availability:** ✅ In Stock ## Summary > 🛠️ Seal it once, seal it right—because leaks don’t wait! ## Quick Answers - **What is this?** Flex Paste Rubberized Waterproof Sealant Paste, White, Cartridge, 1-Pack by flex paste - **How much does it cost?** NZ$56 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/234733057-flex-paste-rubberized-waterproof-sealant-paste-white-cartridge-1-pack) ## 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 Ready:** Fully paintable and UV resistant, protecting surfaces while matching your style. - • **Seal with Confidence:** Creates a flexible, watertight rubber barrier that blocks air, water, and moisture. - • **Stay Fresh Container:** Innovative packaging locks in freshness to maintain sealing power longer—no wasted paste. - • **Underwater Application:** Unique formula allows application and curing even underwater—no job too tough. - • **Max Coverage, Minimal Waste:** Super thick paste instantly fills large cracks and holes, saving time and effort. ## Overview Flex Paste Rubberized Waterproof Sealant Paste is a super thick, white rubberized paste designed to fill large gaps, cracks, and holes. It forms a flexible, watertight barrier that works even underwater and dries to a paintable, UV-resistant finish. Packaged in a stay-fresh container to extend product life, it’s compatible with a wide range of materials including brick, metal, wood, and more—ideal for professional-grade sealing and protection. ## Description Flex Paste Rubberized Waterproof Sealant Paste, White, Cartridge, 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B084TCZLQQ | | Best Sellers Rank | #12,103 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #44 in Hardware Sealers | | Brand Name | Flex Paste | | Color | White | | Compatible Material | Brick, Ceramic, Concrete, Fabric, Glass, Metal, Plastic, Porcelain, Stone, Wood | | Customer Reviews | 4.0 4.0 out of 5 stars (6,064) | | Included Components | Item | | Item Dimensions | 11.25 x 3 x 3 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 Seal PFSWHTR10 Flex Paste 9 Oz. Cartridge - White | | Item Weight | 9 ounces | | Manufacturer | Swift Response, LLC | | Material Type | Rubber | | Model | PFSWHTR10 | | Number of Items | 1 | | Part Number | PFSWHTR10 | | Style Name | 9 oz White | | Surface Recommendation | Windows,Doors | | UPC | 850010226866 | | Unit Count | 9 Ounce | | Warranty Description | 1 Year Limited | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Flex Paste - **Item Weight:** 9 ounces - **Item dimensions L x W x H:** 11.25 x 3 x 3 inches - **Material:** Rubber - **Style:** 9 oz White ## Images ![Flex Paste Rubberized Waterproof Sealant Paste, White, Cartridge, 1-Pack - Image 1](https://m.media-amazon.com/images/I/31fOfy7vNkL.jpg) ![Flex Paste Rubberized Waterproof Sealant Paste, White, Cartridge, 1-Pack - Image 2](https://m.media-amazon.com/images/I/512cEZ8g3KL.jpg) ![Flex Paste Rubberized Waterproof Sealant Paste, White, Cartridge, 1-Pack - Image 3](https://m.media-amazon.com/images/I/51PTK86DbLL.jpg) ![Flex Paste Rubberized Waterproof Sealant Paste, White, Cartridge, 1-Pack - Image 4](https://m.media-amazon.com/images/I/51h45DNaA5L.jpg) ![Flex Paste Rubberized Waterproof Sealant Paste, White, Cartridge, 1-Pack - Image 5](https://m.media-amazon.com/images/I/51dewOXMkFL.jpg) ## Available Options This product comes in different **Color, Size** options. ## 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, Cartridge - Flex Caulk, Waterproof & Weatherproof Hybrid Polymer Sealant, Strong, Paintable, Indoor, Outdoor, Bath, Shower, Sink, Window, Baseboards, Door, RV, Roof, Wood, Auto & Marine, Clear, 6.6 oz, 1-Pack --- ## 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.nz/products/234733057-flex-paste-rubberized-waterproof-sealant-paste-white-cartridge-1-pack](https://www.desertcart.nz/products/234733057-flex-paste-rubberized-waterproof-sealant-paste-white-cartridge-1-pack) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-09-03*