--- product_id: 46942024 title: "A-Tech Hydra-Block Concrete Basement Wall and Floor Sealer -5 Gallon Pail-Seals Basements Against Water Vapor, Water and Radon" brand: "applied technologies" price: "€ 548.38" currency: EUR in_stock: false reviews_count: 2 url: https://www.desertcart.be/products/46942024-a-tech-hydra-block-concrete-basement-wall-and-floor-sealer store_origin: BE region: Belgium --- # Low VOC, No Odor 100% Waterproof Seal Radon & Gas Barrier A-Tech Hydra-Block Concrete Basement Wall and Floor Sealer -5 Gallon Pail-Seals Basements Against Water Vapor, Water and Radon **Brand:** applied technologies **Price:** € 548.38 **Availability:** ❌ Out of Stock ## Summary > 🛡️ Seal Smart, Live Dry: The Basement Guardian You Can't Afford to Miss! ## Quick Answers - **What is this?** A-Tech Hydra-Block Concrete Basement Wall and Floor Sealer -5 Gallon Pail-Seals Basements Against Water Vapor, Water and Radon by applied technologies - **How much does it cost?** € 548.38 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/46942024-a-tech-hydra-block-concrete-basement-wall-and-floor-sealer) ## Best For - applied technologies enthusiasts ## Why This Product - Trusted applied technologies brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Bulk Ready:** Generous 5-gallon pail for large projects or multiple applications—never run out mid-job. - • **Eco-Smart Formula:** Low VOC and odorless, perfect for indoor use without compromising air quality. - • **Versatile Application:** Designed for both walls and floors, ensuring comprehensive basement protection. - • **Invisible Concrete Armor:** Penetrates deep to harden concrete, reducing dust and maintaining a natural finish. - • **Ultimate Basement Defense:** Stops water, vapor, radon & methane infiltration for a healthier home environment. ## Overview A-Tech Hydra-Block is a professional-grade, low VOC liquid sealer designed to waterproof interior basement concrete walls and floors. It effectively blocks water vapor, liquid water, radon, methane, and other soil gases, while hardening concrete to reduce dusting. The product is odorless, paintable, and leaves a natural concrete look, delivered in a convenient 5-gallon pail for extensive coverage. ## Description Since 1998 Applied Technologies has supplied the waterproofing industry with quality materials to pros and DIYers. 100-200 sq. ft./gallon. Hydra Block is a penetrating concrete sealer that stops water, water vapor, radon, methane and other soil gasses from migrating through concrete. Protect your basement living space by applying Hydra-Block . There are no solvents or odor and it is environmentally friendly. Paintable after application. Hardens and strengthens concrete to reduce dusting. Review: No physical change in appearance to concrete blocks after spraying. No means to measure water or gas vapors blockage. - No physical change in appearance to concrete blocks after spraying, expected to see pores in blocks to close. No economically means of measuring effectiveness of vapors blockage. Review: Don’t not buy. Doesn’t work - This product is as thin as water and does not seal. When I went to return the unused, I had to pay $100 for postage. Don’t not buy this product. ## Features - Apply on Interior Basement Concrete Walls and Floors to Prevent Water and Water Vapor Transmission Through Concrete - Stops Radon, Methane and Other Soil Gasses From Entering a Basement - Hardens Concrete To Reduce Dusting, Paintable and Soaks Into Concrete Leaving a Natural Look - Low VOC - No Odor ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008DG7VR8 | | Brand | Applied Technologies | | Brand Name | Applied Technologies | | Compatible Material | Concrete | | Customer Reviews | 3.5 out of 5 stars 5 Reviews | | Item Dimensions | 13 x 15.5 x 13 inches | | Item Form | Liquid | | Item Weight | 49 Pounds | | Item dimensions L x W x H | 13 x 15.5 x 13 inches | | Manufacturer | Applied Technologies | | Part Number | AT-ZWL38548 | | Style | Compact | | Style Name | Compact | | Surface Recommendation | Floor, Wall | | Unit Count | 640.0 Fluid Ounces | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Applied Technologies - **Style:** Compact - **Item Weight:** 49 Pounds - **Item dimensions L x W x H:** 13 x 15.5 x 13 inches - **Compatible Material:** Concrete ## Images ![A-Tech Hydra-Block Concrete Basement Wall and Floor Sealer -5 Gallon Pail-Seals Basements Against Water Vapor, Water and Radon - Image 1](https://m.media-amazon.com/images/I/81ijV4+IKJL.jpg) ## Customer Reviews ### ⭐⭐ No physical change in appearance to concrete blocks after spraying. No means to measure water or gas vapors blockage. *by N***S on August 22, 2013* No physical change in appearance to concrete blocks after spraying, expected to see pores in blocks to close. No economically means of measuring effectiveness of vapors blockage. ### ⭐ Don’t not buy. Doesn’t work *by J***H on March 30, 2021* This product is as thin as water and does not seal. When I went to return the unused, I had to pay $100 for postage. Don’t not buy this product. --- ## 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.be/products/46942024-a-tech-hydra-block-concrete-basement-wall-and-floor-sealer](https://www.desertcart.be/products/46942024-a-tech-hydra-block-concrete-basement-wall-and-floor-sealer) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-11-10*