--- product_id: 43008357 title: "DAP 18280 Dynaflex 230 Premium Indoor/Outdoor Sealant, 10.1 fl oz Capacity, Black (Case of 12)" brand: "dap" price: "$262.68" currency: USD in_stock: true category: "Dap" url: https://www.desertcart.us/products/43008357-dap-18280-dynaflex-230-premium-indoor-outdoor-sealant-10-1 store_origin: US region: United States of America --- # 800 psi tensile strength 10.1 fl oz premium capacity 100% waterproof & weatherproof DAP 18280 Dynaflex 230 Premium Indoor/Outdoor Sealant, 10.1 fl oz Capacity, Black (Case of 12) **Brand:** dap **Price:** $262.68 **Availability:** ✅ In Stock ## Summary > 🖤 Seal it like a pro—weatherproof your world with Dynaflex 230! ## Quick Answers - **What is this?** DAP 18280 Dynaflex 230 Premium Indoor/Outdoor Sealant, 10.1 fl oz Capacity, Black (Case of 12) by dap - **How much does it cost?** $262.68 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/43008357-dap-18280-dynaflex-230-premium-indoor-outdoor-sealant-10-1) ## 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 - • **Versatile Use:** Perfect for a wide range of surfaces, meeting Federal and ASTM specs for professional-grade results. - • **Bulk Value Pack:** Case of 12 tubes keeps your projects stocked and ready—never run out mid-job. - • **Unmatched Durability:** Withstands the toughest indoor and outdoor conditions for lasting protection. - • **Precision Application:** Smooth, easy-to-use liquid form ensures a flawless seal every time. - • **Advanced Latex Technology:** DAP’s most cutting-edge elastomeric formula for superior adhesion. ## Overview DAP 18280 Dynaflex 230 is a premium black elastomeric sealant designed for both indoor and outdoor use. Featuring advanced latex technology, it delivers excellent adhesion and a watertight, weatherproof seal with a tensile strength of 800 psi. This 10.1 fl oz liquid sealant cures fully in 24 hours and meets Federal Spec TT-S-00230C and ASTM C 920 standards, making it a trusted choice for professional and DIY weatherization projects. Sold in a convenient 12-pack, it ensures you’re always ready to tackle sealing jobs with confidence. ## Description Dap 18280 10.1 Oz Black Dynaflex 230 Premium Indoor/Outdoor Sealant ## Features - Black DYNAFLEX 230 Premium Elastomeric Sealant 10.1 oz - DAP's most advanced latex sealant technology. - Provides excellent adhesion and a watertight, weatherproof seal. - Interior/exterior use - Federal Spec. TT-S-00230C, Type II, Class A, ASTM Spec. C 920, Class 25 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0166MG7OS | | Best Sellers Rank | #2,052 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #123 in Adhesive Caulk #19,070 in Hardware | | Brand | DAP | | Brand Name | DAP | | Color | Black | | Customer Reviews | 4.6 out of 5 stars 1,036 Reviews | | Full Cure Time | 24 hours | | Included Components | Item | | Item Form | Liquid | | Item Weight | 12 pounds | | Liquid Volume | 10.1 fluid ounces | | Manufacturer | DAP PRODUCTS INC | | Material Type | Silicone | | Model | 18280 | | Number of Items | 12 | | Part Number | 18280 | | Surface Recommendation | Miscellaneous | | Tensile Strength | 800 psi | | UPC | 070798182806 | | Unit Count | 12 Count | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** DAP - **Color:** WHITE - **Full Cure Time:** 24 Hours - **Item Weight:** 12 Pounds - **Liquid Volume:** 10.1 Fluid Ounces ## Images ![DAP 18280 Dynaflex 230 Premium Indoor/Outdoor Sealant, 10.1 fl oz Capacity, Black (Case of 12) - Image 1](https://m.media-amazon.com/images/I/519SZRgQ6PL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: is the calking black or white?** A: White **Q: is this better than saschos big stretch?** A: No! **Q: Is this white or black? the heading says black but the description says white** A: My order contained black **Q: is the calking black or white ? make me confuse some answer is white some black.** A: Came out Black ## Frequently Bought Together - DAP 18280 Dynaflex 230 Premium Indoor/Outdoor Sealant, 10.1 Fl Oz Capacity, Black (Box of 12) - DAP 12 Pack 18300 DYNAFLEX 230 Premium Indoor/Outdoor Sealant - White 10.1-oz Cartridge (18275) - Dap 18304 12 Pack 10.1-Ounce Dynaflex 230 Premium Indoor/Outdoor Sealant, Clear --- ## 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.us/products/43008357-dap-18280-dynaflex-230-premium-indoor-outdoor-sealant-10-1](https://www.desertcart.us/products/43008357-dap-18280-dynaflex-230-premium-indoor-outdoor-sealant-10-1) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-23*