---
product_id: 216402507
title: "Clear Multi-Surface Construction Sealant & Adhesive, 290ml 2in1 formula | Hybrid Technology, Excellent Chemical Resistance, Water Resistant, Weather Resistant"
brand: "ob1"
price: "€ 21.26"
currency: EUR
in_stock: true
reviews_count: 12
category: "Ob1"
url: https://www.desertcart.it/products/216402507-clear-multi-surface-construction-sealant-and-adhesive-290ml-2in1-formula
store_origin: IT
region: Italy
---

# Underwater & food safe Works -40°C to +120°C 20+ years proven formula Clear Multi-Surface Construction Sealant & Adhesive, 290ml 2in1 formula | Hybrid Technology, Excellent Chemical Resistance, Water Resistant, Weather Resistant

**Brand:** ob1
**Price:** € 21.26
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it, bond it, own it — the pro’s clear choice for every surface!

## Quick Answers

- **What is this?** Clear Multi-Surface Construction Sealant & Adhesive, 290ml 2in1 formula | Hybrid Technology, Excellent Chemical Resistance, Water Resistant, Weather Resistant by ob1
- **How much does it cost?** € 21.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/216402507-clear-multi-surface-construction-sealant-and-adhesive-290ml-2in1-formula)

## 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

- • **Fast, Durable Cure:** Strong, flexible seal in just 24 hours—trusted by pros for reliable, long-lasting results.
- • **Weatherproof Warrior:** Endures extreme temperatures and harsh conditions without losing grip or flexibility.
- • **Eco-Friendly & Odourless:** Safe for indoor & outdoor use with A+ air quality rating—no harsh fumes, no compromise.
- • **Underwater Application Ready:** Apply directly underwater for pool tiles & marine repairs—no draining needed.
- • **Versatile Master of Materials:** Bonds & seals felt, metal, glass, wood, plastic & more with professional precision.

## Overview

OB1 Clear Multi-Surface Construction Sealant & Adhesive is a hybrid polymer formula trusted for over 20 years, delivering durable, flexible bonds across a wide range of materials. It withstands extreme temperatures (-40°C to +120°C), is safe for underwater and food-contact applications, and is eco-friendly with no solvents or odour. Ideal for professional and DIY use, it cures in 24 hours to a strong, weather-resistant finish perfect for construction, marine, and pool maintenance.

## Description

Free delivery and returns on all eligible orders. Shop OB1 Clear Multi-Surface Construction Sealant & Adhesive, 290ml 2in1 formula | Hybrid Technology, Excellent Chemical Resistance, Water Resistant, Weather Resistant.

Review: ⭐⭐⭐⭐⭐ Professional-Grade Sealant and Adhesive That Never Lets Me Down - ⭐⭐⭐⭐⭐ Outstanding Sealant and Adhesive – My Go-To for Professional Use The 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 use The 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.
Review: good colour match for my windows trims - 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.

## 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: Clear

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08DD3LHFB |
| Best Sellers Rank | 234 in DIY & Tools ( See Top 100 in DIY & Tools ) 15 in Sealers |
| Brand | OB1 |
| Colour | Clear |
| Compatible Material | Felt, Copper, Aluminium, Mirrors, Wood, Plastic, Steel, Glass, Tile, and More |
| Container Type | Tube |
| Customer Reviews | 4.6 out of 5 stars 1,244 Reviews |
| EU Spare Part Availability Duration | 1 Years |
| Full Cure Time | 1 Days |
| Global Trade Identification Number | 05032822004336 |
| Included Components | OB1 SEAL & ADH CLEAR 290ML |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | OB1 SEAL & ADH CLEAR 290ML |
| Item Volume | 290 Millilitres |
| Item form | Liquid |
| Manufacturer | Siroflex Lte |
| Manufacturer Part Number | OB1SCS290C |
| Material | Hybrid Polymer |
| Model Number | OB1SCS290C |
| Number of Pieces | 1 |
| Other Special Features of the Product | Weather Resistant |
| Special feature | Weather Resistant |
| Specific Uses For Product | industrial applications, construction, swimming pool maintenance, marine construction |
| Specific uses for product | industrial applications, construction, swimming pool maintenance, marine construction |
| Unit Count | 290.0 millilitre |
| Viscosity Level | Medium to High |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** OB1
- **Item form:** Liquid
- **Material:** Hybrid Polymer
- **Special feature:** Weather Resistant
- **Specific uses for product:** industrial applications, construction, swimming pool maintenance, marine construction

## Images

![Clear Multi-Surface Construction Sealant & Adhesive, 290ml 2in1 formula | Hybrid Technology, Excellent Chemical Resistance, Water Resistant, Weather Resistant - Image 1](https://m.media-amazon.com/images/I/61ehD4HWpgL.jpg)

## Available Options

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

## Questions & Answers

**Q: I want to clad my Mahogany stair treads with engineered oak boards . Is this suitable for the job**
A: This is good stuff, it has never let me down.

**Q: Any good for repairing cracks in exterior stucco cracks?**
A: It is a fantastic exterior filler for big cracks.

**Q: Can this be used to seal electrical cables going into a back box?**
A: I've used this as a seal on marine applications so probably but don't know for sure.

**Q: Can you use this to seal fuel tanks ( kerosene)**
A: Yes it will see liquids and do not think kerosene would be acidic enough to eat through it so yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ Professional-Grade Sealant and Adhesive That Never Lets Me Down
*by K***S on 5 July 2026*

⭐⭐⭐⭐⭐ Outstanding Sealant and Adhesive – My Go-To for Professional Use The 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 use The 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 A***. on 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 G***T on 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 Multi-Surface Construction Sealant & Adhesive, Excellent Chemical Resistance, Water Resistant, Weather Resistant, Colour: Clear
- Bates- Caulking Gun, 10:1 Thrust Ratio, Orange, Caulking Tool Gun, Caulk Gun No Drip, Hand Caulking Guns, Silicone Gun, Caulking Gun Tool, No Drip Caulk Gun, Caulk Guns, Caulking Gun Dripless

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**Shop now:** [https://www.desertcart.it/products/216402507-clear-multi-surface-construction-sealant-and-adhesive-290ml-2in1-formula](https://www.desertcart.it/products/216402507-clear-multi-surface-construction-sealant-and-adhesive-290ml-2in1-formula)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-08-24*