--- product_id: 315576076 title: "DAP 12 Pack 18300 DYNAFLEX 230 Premium Indoor/Outdoor Sealant - White 10.1-oz Cartridge (18275)" brand: "dap" price: "$310.96" currency: USD in_stock: true category: "Dap" url: https://www.desertcart.us/products/315576076-dap-12-pack-18300-dynaflex-230-premium-indoor-outdoor-sealant store_origin: US region: United States of America --- # Indoor/Outdoor Versatility 100% Waterproof Seal Advanced Latex Technology DAP 12 Pack 18300 DYNAFLEX 230 Premium Indoor/Outdoor Sealant - White 10.1-oz Cartridge (18275) **Brand:** dap **Price:** $310.96 **Availability:** ✅ In Stock ## Summary > 💪 Seal smart, live smarter — the ultimate defense against leaks and cracks! ## Quick Answers - **What is this?** DAP 12 Pack 18300 DYNAFLEX 230 Premium Indoor/Outdoor Sealant - White 10.1-oz Cartridge (18275) by dap - **How much does it cost?** $310.96 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/315576076-dap-12-pack-18300-dynaflex-230-premium-indoor-outdoor-sealant) ## 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:** Perfect for windows, doors, siding, trim, and more—inside or out. - • **Mold & Mildew Resistant:** Keep your spaces fresh and clean, even in damp environments. - • **Certified Premium Quality:** Exceeds Federal and ASTM specs for trusted, professional-grade performance. - • **Unmatched Weatherproof Seal:** Stay leak-free and energy-efficient with a crack-proof, flexible barrier. - • **Paintable & Low Odor Formula:** Seamlessly blend your seal with any décor—no harsh smells, just smooth finishes. ## Overview DAP DYNAFLEX 230 is a premium 10.1-oz white latex sealant designed for indoor and outdoor use. Featuring advanced elastomeric technology, it delivers a durable, waterproof, and flexible seal that resists mold and mildew. Paintable and low odor, it meets rigorous Federal and ASTM standards, making it ideal for sealing gaps around windows, doors, and trim to enhance energy efficiency and protect your home year-round. ## Description DAP's most advanced indoor/outdoor premium latex sealant technology is both waterproof and paintable. It combines outstanding durability, adhesion and flexibility with easy tooling, paintability, low odor and easy water clean up. Provides a permanently flexible, crack proof seal that is ideal for sealing out water and air leaks to improve the energy efficiency of a home. Also seals out insects from entering through small gaps and cracks. Cured sealant is mold and mildew resistant. Ideal for a wide variety of applications such as sealing around windows, doors, siding, trim, molding and baseboards. Exceeds Federal Specification TT-S-00230C, Type II, Class A and AS Specification C 920, Class 25. ## Features - White DYNAFLEX 230 Premium Elastomeric Sealant 10.1 oz - DAP's most advanced latex sealant technology. - Provides excellent adhesion and a watertight, weatherproof seal. - Cured caulk. Interior/exterior use. - Federal Spec. TT-S-00230C, Type II, Class A, ASTM Spec. C 920, Class 25 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000KE2PHC | | Brand Name | DAP | | Color | White | | Compatible Material | Rubber | | Customer Reviews | 4.7 4.7 out of 5 stars (639) | | Item Dimensions | 21 x 15.9 x 30.5 centimeters | | Item Form | Strip | | Item Type Name | 12 Pack Dap 18300 DYNAFLEX 230 Premium Indoor/Outdoor Sealant - White 10.1-oz Cartridge (18275) | | Item Weight | 10 Ounces | | Manufacturer | DAP | | Material Type | Plastic | | Model | 12 Pack Dap 18300 DYNAFLEX 230 Premium I | | Number of Items | 1 | | Part Number | 18300 | | Style Name | Compact | | Surface Recommendation | Door, Window | | Unit Count | 121.2 Fluid Ounces | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** DAP - **Item dimensions L x W x H:** 21 x 15.9 x 30.5 centimeters - **Item weight:** 10 Ounces - **Material:** Plastic - **Style:** Compact ## Images ![DAP 12 Pack 18300 DYNAFLEX 230 Premium Indoor/Outdoor Sealant - White 10.1-oz Cartridge (18275) - Image 1](https://m.media-amazon.com/images/I/51Am5R1u9FL.jpg) ## Questions & Answers **Q: Can you paint this caulk with regular primer+paint in one paint?** A: Yes. Just don't paint too soon. Check directions. **Q: Does this product attract dirt? Is it easy to clean?** A: It is non hardening so dirt can be attached to it over time. We clean the exterior with water and the interior areas with a paint brush and shop vac. It is very dusty where we are tho. **Q: Can I put this on something that’s wet or damp?** A: you can but its best if its clean and dry **Q: Good for exterior aluminum trim for widow against brick? Or aluminum trim againsts wood?** A: The general rule is to use a silicone or tripolimer on aluminum. I personally would use Geocel 2300 for your application. ## Frequently Bought Together - 12 Pack Dap 18300 DYNAFLEX 230 Premium Indoor/Outdoor Sealant - White 10.1-oz Cartridge (18275) - 12 Pack of 10.1 oz Dap 18305 Dynaflex 230 Clear Premium Window, Door, and Trim Sealant - Newborn Octogun 930-GTD Drip-Free Caulking Gun - Gator Trigger Grip | Fits 1/10 Gallon Cartridge |10:1 Thrust Ratio | Smooth Hex Rod Cradle with Built-in Smoother Tool | Scraper & Plug Included --- ## 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/315576076-dap-12-pack-18300-dynaflex-230-premium-indoor-outdoor-sealant](https://www.desertcart.us/products/315576076-dap-12-pack-18300-dynaflex-230-premium-indoor-outdoor-sealant) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-08*