---
product_id: 291582403
title: "– Anthracite Multi-Surface Construction Sealant & Adhesive - Hybrid Technology - Excellent Chemical Resistance - Water & Weather Resistant - 290ml"
brand: "ob1"
price: "€ 20.44"
currency: EUR
in_stock: true
reviews_count: 12
category: "Ob1"
url: https://www.desertcart.at/products/291582403-anthracite-multi-surface-construction-sealant-and-adhesive-hybrid-technology-excellent
store_origin: AT
region: Austria
---

# Waterproof & underwater application Withstands -40°C to +120°C Bonds 10+ surfaces seamlessly – Anthracite Multi-Surface Construction Sealant & Adhesive - Hybrid Technology - Excellent Chemical Resistance - Water & Weather Resistant - 290ml

**Brand:** ob1
**Price:** € 20.44
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it once, seal it right — the ultimate hybrid adhesive for pros who settle for nothing less!

## Quick Answers

- **What is this?** – Anthracite Multi-Surface Construction Sealant & Adhesive - Hybrid Technology - Excellent Chemical Resistance - Water & Weather Resistant - 290ml by ob1
- **How much does it cost?** € 20.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/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

- • **Multi-Surface Mastery:** Seals and bonds everything from glass to aluminium with unmatched versatility
- • **All-Weather Durability:** Keeps your projects intact from freezing winters to scorching summers
- • **Odourless & Eco-Friendly:** No harsh smells or solvents, safe for home and industrial use with A+ air quality rating
- • **Trusted Original Formula:** 20+ years of proven performance with hybrid polymer tech for lasting strength
- • **Underwater Bonding Power:** Apply without draining pools—perfect for submerged repairs and tiling

## Overview

OB1 Anthracite Multi-Surface Construction Sealant & Adhesive is a 290ml hybrid polymer paste designed for durable, waterproof bonding and sealing across diverse materials including metal, glass, wood, and plastic. It withstands extreme temperatures (-40°C to +120°C), is safe for underwater use, eco-friendly, odourless, and compatible with most paints. Trusted for over 20 years, it’s the go-to sealant for professional-grade construction and repair.

## Description

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

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.
Review: Very good product - Quality stuff for any job , easy to apply and smooth off. Sets perfectly , no complaints

## 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 | 334 in DIY & Tools ( See Top 100 in DIY & Tools ) 13 in Sealers |
| Brand | OB1 |
| Colour | Anthracite |
| Compatible Material | Aluminium, Fibreglass, Glass, Plastic |
| Container Type | Tube |
| Country Of Origin | Netherlands |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,062) |
| 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 |
| Material | Hybrid Polymer |
| Model Number | B1SCS290A |
| Other Special Features of the Product | Hybrid Polymer Technology |
| Specific Uses For Product | Construction, Repair |
| Unit Count | 515.0 Grams |
| 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 & Weather Resistant - 290ml - Image 1](https://m.media-amazon.com/images/I/61HcmXD2FWL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Very good product
*by B***Z on 5 February 2026*

Quality stuff for any job , easy to apply and smooth off. Sets perfectly , no complaints

### ⭐⭐⭐⭐ Seals and glues
*by D***R on 19 July 2024*

Use I got this to glue aluminium tread plate onto flat steel plate to avoid having to buy more expensive tread like stainless steel which I can't weld. Value This was on offer cheaper than certain DIY store with yellow and blue logos. I think it was £7/8 instead of £12 and it's a biggish tube compared to some smaller silicone sizes. Consistency It's somewhat sticky and I used a narrow bead which was quite hard to pump out. When I aligned the two pieces I had a bit of resistance trying to press them together and used clamps in the end. Hold/stick Once together and dry the pieces are held together very well. It's nice to have a seal as well as a glue. Colour I got Graphite colour which is quite nice and dark grey. Smell No noticeable smell. Overall I would recommend and will use again if I have the need for both a sealant and glue-like substance.

## 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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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-04-23*