--- product_id: 291582403 title: "OB1 Anthracite Multi-Surface Construction Sealant & Adhesive - Hybrid Technol..." brand: "ob1" price: "$26.71" currency: USD in_stock: true reviews_count: 12 url: https://www.desertcart.us/products/291582403-ob1-anthracite-multi-surface-construction-sealant-and-adhesive-hybrid-technol store_origin: US region: United States of America --- # Underwater & Waterproof Hybrid Polymer Tech Works -40°C to +120°C OB1 Anthracite Multi-Surface Construction Sealant & Adhesive - Hybrid Technol... **Brand:** ob1 **Price:** $26.71 **Availability:** ✅ In Stock ## Summary > 🔧 Seal it. Bond it. Own it. The pro’s choice for flawless fixes. ## Quick Answers - **What is this?** OB1 Anthracite Multi-Surface Construction Sealant & Adhesive - Hybrid Technol... by ob1 - **How much does it cost?** $26.71 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/291582403-ob1-anthracite-multi-surface-construction-sealant-and-adhesive-hybrid-technol) ## Best For - ob1 enthusiasts ## Why This Product - Trusted ob1 brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Weather Durability:** Maintains a rock-solid bond from freezing cold to scorching heat, perfect for any climate challenge. - • **Underwater Application:** Apply directly underwater for pool repairs or damp surfaces without draining—game-changing convenience. - • **Eco-Friendly & Odourless:** No solvents or isocyanates, earning an A+ air quality rating—safe for home, work, and the planet. - • **Professional Finish Every Time:** Smooth tooling, no shrinkage or cracking, and a sleek anthracite color that matches modern trims perfectly. - • **Versatile Multi-Surface Bonding:** Seals and adheres flawlessly to metal, glass, wood, plastic, tile, and more—your all-in-one fix-it solution. ## Overview OB1 Anthracite Multi-Surface Sealant & Adhesive is a 290ml hybrid polymer formula trusted for over 20 years. It delivers exceptional bonding strength and flexibility across a wide range of materials, from metal to glass, even underwater. Engineered to withstand extreme temperatures (-40°C to +120°C) and harsh weather, it’s odourless, eco-friendly, and perfect for professional and DIY use alike. ## Features - ORIGINAL FORMULA - The Original formulation which has been on the market for 20+ years, A versatile Multi-Surface Construction Sealant & Adhesive: Perfect for bonding and sealing felt, copper, aluminium, mirrors, wood, plastic, steel, glass, tile, and mor - DURABILITY - Durable in Extreme Conditions: Maintains a strong bond from -40°C to +120°C, ideal for harsh weather and refrigerated environments. Compatible with most paints; test area when using synthetic or oil-based paints. - FOOD SAFE & UNDERWATER - Can be applied underwater thanks to its hybrid polymer formulation - acts as a structural underwater bond in closed-face applications in swimming pools such as floor and wall tiles without the need to drain the pool, ISEGA approve - ODOURLESS - Eco-Friendly & Odourless: Safe for residential, domestic, and industrial use. Contains no solvents or isocyanates, earning an A+ air quality rating. - CONTENTS - 1 x OB1 Multi-Surface Construction Sealant & Adhesive, Colour: Anthracite ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B08K24NG7Z | | Best Sellers Rank | 356 in DIY & Tools (See Top 100 in DIY & Tools) 16 in Sealers | | Brand | OB1 | | Colour | Anthracite | | Compatible Material | Aluminium, Fibreglass, Glass, Plastic | | Container Type | Tube | | Country Of Origin | Netherlands | | Customer Reviews | 4.6 4.6 out of 5 stars (1,266) 4.6 out of 5 stars | | Global Trade Identification Number | 05032822004473 | | Included Components | 290ml Cartridge with Nozzle | | Item Form | Paste | | Item Package Quantity | 1 | | Item Type Name | Adhesive and sealant | | Item Volume | 290 Millilitres | | Manufacturer | Siroflex Lte | | Manufacturer Part Number | B1SCS290A | | Material | Hybrid Polymer | | Model Number | B1SCS290A | | Number Of Pieces | 1 | | Other Special Features Of The Product | Hybrid Polymer Technology | | Specific Uses For Product | Construction, Repair | | Tensile Strength | 265 Newtons Per Square Millimeter (N/mm2) | | Unit Count | 515.0 gram | | Viscosity Level | Low | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** OB1 - **Item form:** Paste - **Material:** Hybrid Polymer - **Special feature:** Hybrid Polymer Technology - **Specific uses for product:** Construction, Repair ## Images ![OB1 Anthracite Multi-Surface Construction Sealant & Adhesive - Hybrid Technol... - Image 1](https://m.media-amazon.com/images/I/61HcmXD2FWL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ Professional-Grade Sealant and Adhesive That Never Lets Me Down *by on Reviewed in the United Kingdom 5 July 2026* ⭐⭐⭐⭐⭐ Outstanding Sealant and Adhesive – My Go-To for Professional UseThe OB1 Seal & Adhesive Black 290ml is one of the best all-round sealants and adhesives I’ve used. As a professional tradesperson, I need products that are reliable, easy to apply and built to last, and OB1 consistently delivers.It has excellent initial grab and bonds extremely well to a wide range of materials, even in situations where other products can struggle. The finish is neat, it tools nicely, and it cures to a strong yet flexible seal that stands up well to movement, moisture and changing weather conditions.One of the biggest advantages is its versatility. Whether I’m sealing, bonding or carrying out repairs, it’s often the first product I reach for. It also adheres well to slightly damp surfaces, making it particularly useful for emergency repairs.Pros:* Excellent bonding strength* Strong initial grab* Flexible, durable finish* Suitable for a wide range of materials* Performs well indoors and outdoors* Easy to apply and tool* Trusted for professional useThe only minor downside is that, like most high-performance adhesives, it can be a little messy if you don’t apply it carefully. Taking your time gives a very clean, professional finish.Overall, this is an exceptional sealant and adhesive that has earned a permanent place in my van. Reliable, versatile and built to last—I’d highly recommend it to both professionals and DIY users. ### ⭐⭐⭐⭐⭐ good colour match for my windows trims *by on Reviewed in the United Kingdom 9 July 2026* The anthracite colour is a spot-on match for modern grey trim, and it doesn't shrink or crack like some cheaper sealants do over time. It gives a really neat, professional finish and holds tight straight away, even if the surface is a bit damp when you apply it. It’s easily the most reliable thing I’ve used for sealing up gaps. ### ⭐⭐⭐⭐ Recommended *by on Reviewed in the United Kingdom 3 July 2026* Haven’t used it before, it was recommended to me from a local trades person who uses it all the time. ## Frequently Bought Together - OB1 Anthracite Multi-Surface Construction Sealant & Adhesive - Hybrid Technology - Excellent Chemical Resistance - Water Resistant - Weather Resistant - Food Safe - 290ml - ProDec MG11ES Extra Strong Skeleton Caulking Gun, Sealants, Silicones, Adhesives - Professional Heavy Duty Applicator Suitable for High Viscosity Products,Red,400ml and 310ml --- ## 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/291582403-ob1-anthracite-multi-surface-construction-sealant-and-adhesive-hybrid-technol](https://www.desertcart.us/products/291582403-ob1-anthracite-multi-surface-construction-sealant-and-adhesive-hybrid-technol) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-10-04*