---
product_id: 291582403
title: "Anthracite Multi-Surface Construction Sealant & Adhesive - Hybrid Technology - Excellent Chemical Resistance - Water Resistant - Weather Resistant - 290ml"
brand: "ob1"
price: "$U2128"
currency: UYU
in_stock: true
reviews_count: 12
category: "Ob1"
url: https://www.desertcart.uy/products/291582403-anthracite-multi-surface-construction-sealant-and-adhesive-hybrid-technology-excellent
store_origin: UY
region: Uruguay
---

# Underwater application & waterproof 20+ years proven original formula Durable -40°C to +120°C Anthracite Multi-Surface Construction Sealant & Adhesive - Hybrid Technology - Excellent Chemical Resistance - Water Resistant - Weather Resistant - 290ml

**Brand:** ob1
**Price:** $U2128
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal smart, last longer — the hybrid hero your projects deserve!

## Quick Answers

- **What is this?** Anthracite Multi-Surface Construction Sealant & Adhesive - Hybrid Technology - Excellent Chemical Resistance - Water Resistant - Weather Resistant - 290ml by ob1
- **How much does it cost?** $U2128 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/291582403-anthracite-multi-surface-construction-sealant-and-adhesive-hybrid-technology-excellent)

## 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

- • **Underwater & Food Safe:** Apply underwater in pools or kitchens with ISEGA-approved, eco-friendly safety.
- • **Odourless & Eco-Friendly:** No solvents or isocyanates, ensuring a clean, safe environment indoors or out.
- • **Perfect Anthracite Finish:** Smooth, dark grey sealant that blends seamlessly with modern design aesthetics.
- • **Extreme Weather Durability:** Maintains a rock-solid bond from freezing cold to scorching heat.
- • **Versatile Multi-Surface Bonding:** Seals & adheres glass, metal, wood, plastic & more with unmatched ease.

## Overview

OB1 Anthracite Multi-Surface Construction Sealant & Adhesive leverages 20+ years of trusted hybrid polymer technology to deliver a durable, waterproof, and odourless seal. Engineered for extreme temperatures (-40°C to +120°C) and compatible with a wide range of materials, it’s perfect for professional-grade construction, repair, and even underwater applications. Its eco-friendly, food-safe formula ensures safe use in residential and industrial settings, all wrapped in a sleek anthracite finish that complements contemporary spaces.

## Description

Shop OB1 Anthracite Multi-Surface Construction Sealant & Adhesive - Hybrid Technology - Excellent Chemical Resistance - Water Resistant - Weather Resistant - 290ml. Free delivery on eligible orders of £20 or more.

Review: Great for small jobs - Great for a small job when you don’t need a big tube plus gun. Used to seal a small run on upvc window and did just that. Despite the cold weather it set pretty quickly and smooth finish.
Review: Great quality and great colour - Great quality, perfect dark brown colour. We have dark wood panels on the kitchen ceiling with spotlights. There was a tiny gap between the two of panels which the light was coming through that gap and didn’t look nice so I wanted to fill that gap. This brown sealant was perfect , exact brown colour i was looking for ,went on so smoothly and has no smell. Very happy with my purchase.

## Features

- Contains sensitizing substances. May produce an allergic reaction.
- Safety data sheet available on request.
- 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 | 196 in DIY & Tools ( See Top 100 in DIY & Tools ) 9 in Sealers |
| Brand | OB1 |
| Colour | Anthracite |
| Compatible Material | Glass, Aluminium, Plastic, Fibreglass |
| Container Type | Tube |
| Country Of Origin | Netherlands |
| Customer Reviews | 4.5 out of 5 stars 1,071 Reviews |
| 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 |
| Item form | Paste |
| Item height | 48 millimetres |
| Manufacturer | Siroflex Lte |
| Material | Hybrid Polymer |
| Model Number | B1SCS290A |
| Other Special Features of the Product | Hybrid Polymer Technology |
| Special feature | Hybrid Polymer Technology |
| Specific Uses For Product | Construction, Repair |
| Specific uses for product | Construction, Repair |
| Unit Count | 515.0 gram |
| Viscosity | Liquid |
| 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

![Anthracite Multi-Surface Construction Sealant & Adhesive - Hybrid Technology - Excellent Chemical Resistance - Water Resistant - Weather Resistant - 290ml - Image 1](https://m.media-amazon.com/images/I/51fMGOKva6L.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for small jobs
*by T***O on 4 February 2026*

Great for a small job when you don’t need a big tube plus gun. Used to seal a small run on upvc window and did just that. Despite the cold weather it set pretty quickly and smooth finish.

### ⭐⭐⭐⭐⭐ Great quality and great colour
*by B***O on 27 January 2026*

Great quality, perfect dark brown colour. We have dark wood panels on the kitchen ceiling with spotlights. There was a tiny gap between the two of panels which the light was coming through that gap and didn’t look nice so I wanted to fill that gap. This brown sealant was perfect , exact brown colour i was looking for ,went on so smoothly and has no smell. Very happy with my purchase.

### ⭐⭐⭐⭐ Seems good quality
*by A***J on 14 December 2025*

Good product but very thick to gun.

## 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

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**Shop now:** [https://www.desertcart.uy/products/291582403-anthracite-multi-surface-construction-sealant-and-adhesive-hybrid-technology-excellent](https://www.desertcart.uy/products/291582403-anthracite-multi-surface-construction-sealant-and-adhesive-hybrid-technology-excellent)

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-03-02*