---
product_id: 539321594
title: "OB1 Diamond Crystal Clear Universal Sealant & Adhesive - Hybrid Technology - Excellent UV Resistance - Water Resistant - Weather Resistant - Interior & Exterior - 290ml"
brand: "ob1"
price: "€ 35.07"
currency: EUR
in_stock: true
reviews_count: 8
category: "Ob1"
url: https://www.desertcart.hr/products/539321594-ob1-diamond-crystal-clear-universal-sealant-and-adhesive-hybrid-technology
store_origin: HR
region: Croatia
---

# Water & weather resistant Hybrid polymer tech High UV resistance OB1 Diamond Crystal Clear Universal Sealant & Adhesive - Hybrid Technology - Excellent UV Resistance - Water Resistant - Weather Resistant - Interior & Exterior - 290ml

**Brand:** ob1
**Price:** € 35.07
**Availability:** ✅ In Stock

## Summary

> 🔗 Seal it like a pro — clear, strong, and built to last!

## Quick Answers

- **What is this?** OB1 Diamond Crystal Clear Universal Sealant & Adhesive - Hybrid Technology - Excellent UV Resistance - Water Resistant - Weather Resistant - Interior & Exterior - 290ml by ob1
- **How much does it cost?** € 35.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/539321594-ob1-diamond-crystal-clear-universal-sealant-and-adhesive-hybrid-technology)

## 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

- • **UV Shielded:** Superior UV resistance ensures long-lasting durability without yellowing or cracking.
- • **Hybrid Power:** Advanced hybrid polymer technology combines flexibility and strong adhesion across materials.
- • **Invisible Strength:** Crystal clear finish blends seamlessly with any surface for a flawless look.
- • **All-Weather Warrior:** Waterproof and weatherproof to keep your projects sealed come rain or shine.
- • **Versatile Application:** Perfect for interior and exterior use on wood, metal, glass, plastic, and more.

## Overview

OB1 Diamond Crystal Clear Universal Sealant & Adhesive is a 290ml hybrid polymer sealant designed for both interior and exterior use. It offers a crystal-clear finish with excellent UV, water, and weather resistance. Its advanced hybrid technology ensures strong adhesion and flexibility across multiple surfaces, making it ideal for non-structural sealing and bonding tasks. Free from phthalates, tin, and solvents, it cures to a durable elastic rubber, delivering professional-grade performance for all your DIY and repair needs.

## Description

Free delivery and returns on all eligible orders. Shop OB1 Diamond Crystal Clear Universal Sealant & Adhesive - Hybrid Technology - Excellent UV Resistance - Water Resistant - Weather Resistant - Interior & Exterior - 290ml.

Review: EXCELLENT - I recently tried out the OB1 Diamond Crystal Clear Universal Sealant & Adhesive, and I have to say, it’s an outstanding product that lives up to its promises. As someone who frequently tackles DIY projects, from sealing cracks around the house to doing some outdoor repairs, I’m always on the lookout for a high-quality adhesive and sealant. The OB1 Diamond Sealant has proven to be exactly what I needed, and then some. First off, the hybrid technology behind this sealant is incredibly impressive. It combines the best qualities of silicones and polyurethanes, offering the flexibility and strength of both. This means the sealant adheres strongly to a wide range of surfaces, including wood, metal, glass, and plastic, making it a versatile choice for many different types of repairs. I used it to seal gaps around my windows and doors, and it’s been incredibly effective at keeping drafts and moisture out. One of the standout features of the OB1 Diamond is its crystal-clear finish. Unlike some other sealants that leave visible marks or discoloration, this product dries completely transparent, which is perfect for areas where aesthetics matter. I used it on some visible spots around my patio, and the clean, clear look blends seamlessly with the surrounding surfaces—no unsightly blobs or residue. The UV resistance is another reason why I’m so impressed with this sealant. I’ve used products in the past that degraded or lost their effectiveness when exposed to sunlight, but the OB1 Diamond Sealant holds up well even under direct sun exposure. It stays intact, flexible, and clear, making it a reliable choice for both interior and exterior applications. Whether you're sealing something outside or indoors, this product can handle both with ease. Additionally, the sealant is water-resistant and weather-resistant, which is a game-changer for outdoor applications. I’ve had it exposed to rain a few times, and it has kept everything sealed without any issues. No peeling, cracking, or loosening, which makes me confident that this product will provide long-lasting protection. The 290ml tube is just the right size for most household or DIY projects. It applies smoothly, and I found it easy to control, even for more intricate jobs. The sealant is also quick-drying, which helps speed up any project I’m working on, and once it sets, it stays strong and flexible, allowing for some movement without compromising the seal. Overall, the OB1 Diamond Crystal Clear Sealant & Adhesive is a top-notch product that delivers exceptional performance across the board. Whether you're sealing, bonding, or repairing, its superior UV resistance, water and weatherproof properties, and clean finish make it a go-to solution for both indoor and outdoor tasks. I highly recommend it for anyone looking for a reliable, long-lasting sealant that does the job perfectly!
Review: OB1 clear sealant - Used other OB1 products and they are easy to use and effective as a glue or sealant so far. Not used this yet but it does look very clear even in the tube.

## Features

- Contains Trimethoxyvinylsilane. May produce an allergic reaction.
- Safety data sheet available on request.
- CRYSTAL CLEAR FORMULA - Specifically developed as a crystal clear universal sealant and adhesive for interior and exterior use.
- HIGH UV RESISTANCE - OB1 Diamond Universal Sealant Crystal Clear has a high resistance against UV, however we recommend when using this product outside to avoid direct UV exposure.
- MULTI USE SEALANT AND ADHESIVE - Can be used for all type of non-structural sealing applications where a minimum of joint movement is expected. Can also be used to seal and bond a wide variety of common building materials.
- FREE FROM - This crystal clear product is phthalate, tin and solvent free and cures under the influence of humidity to form a durable elastic rubber. Suitable for both interior and exterior applications.
- CONTENT: 1x OB1 Diamond Universal Sealant & Adhesive, Colour - Crystal Clear

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C4V8KQ22 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 42,843 in DIY & Tools ( See Top 100 in DIY & Tools ) 649 in Sealers |
| Colour | Crystal Clear |
| Customer Reviews | 4.6 4.6 out of 5 stars (90) |
| Date First Available | 10 May 2023 |
| Included Components | 1 x Cartridge 290ml |
| Item Package Quantity | 1 |
| Item Weight | 360 g |
| Item model number | 31002130 |
| Manufacturer | Siroflex Lte |
| Material | Hybrid Polymer |
| Number of Pieces | 1 |
| Part Number | OB1DUSA290CC |
| Product Dimensions | 23 x 5 x 5 cm; 360 g |
| Style | Compact |

## Product Details

- **Brand:** OB1
- **Item dimensions L x W x H:** 23 x 5 x 5 centimetres
- **Material:** Hybrid Polymer
- **Style:** Compact
- **Water resistance level:** Waterproof

## Images

![OB1 Diamond Crystal Clear Universal Sealant & Adhesive - Hybrid Technology - Excellent UV Resistance - Water Resistant - Weather Resistant - Interior & Exterior - 290ml - Image 1](https://m.media-amazon.com/images/I/61huzqFy5+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ EXCELLENT
*by K***L on 29 December 2024*

I recently tried out the OB1 Diamond Crystal Clear Universal Sealant & Adhesive, and I have to say, it’s an outstanding product that lives up to its promises. As someone who frequently tackles DIY projects, from sealing cracks around the house to doing some outdoor repairs, I’m always on the lookout for a high-quality adhesive and sealant. The OB1 Diamond Sealant has proven to be exactly what I needed, and then some. First off, the hybrid technology behind this sealant is incredibly impressive. It combines the best qualities of silicones and polyurethanes, offering the flexibility and strength of both. This means the sealant adheres strongly to a wide range of surfaces, including wood, metal, glass, and plastic, making it a versatile choice for many different types of repairs. I used it to seal gaps around my windows and doors, and it’s been incredibly effective at keeping drafts and moisture out. One of the standout features of the OB1 Diamond is its crystal-clear finish. Unlike some other sealants that leave visible marks or discoloration, this product dries completely transparent, which is perfect for areas where aesthetics matter. I used it on some visible spots around my patio, and the clean, clear look blends seamlessly with the surrounding surfaces—no unsightly blobs or residue. The UV resistance is another reason why I’m so impressed with this sealant. I’ve used products in the past that degraded or lost their effectiveness when exposed to sunlight, but the OB1 Diamond Sealant holds up well even under direct sun exposure. It stays intact, flexible, and clear, making it a reliable choice for both interior and exterior applications. Whether you're sealing something outside or indoors, this product can handle both with ease. Additionally, the sealant is water-resistant and weather-resistant, which is a game-changer for outdoor applications. I’ve had it exposed to rain a few times, and it has kept everything sealed without any issues. No peeling, cracking, or loosening, which makes me confident that this product will provide long-lasting protection. The 290ml tube is just the right size for most household or DIY projects. It applies smoothly, and I found it easy to control, even for more intricate jobs. The sealant is also quick-drying, which helps speed up any project I’m working on, and once it sets, it stays strong and flexible, allowing for some movement without compromising the seal. Overall, the OB1 Diamond Crystal Clear Sealant & Adhesive is a top-notch product that delivers exceptional performance across the board. Whether you're sealing, bonding, or repairing, its superior UV resistance, water and weatherproof properties, and clean finish make it a go-to solution for both indoor and outdoor tasks. I highly recommend it for anyone looking for a reliable, long-lasting sealant that does the job perfectly!

### ⭐⭐⭐⭐⭐ OB1 clear sealant
*by B***N on 10 October 2025*

Used other OB1 products and they are easy to use and effective as a glue or sealant so far. Not used this yet but it does look very clear even in the tube.

### ⭐⭐⭐⭐ Cheapest hybrid polymer brand I could find
*by N***N on 17 April 2025*

Bought as slightly cheaper alternative to CT1. Have also used Plumbers Gold in the past. I found this OB1 to be a less smooth than other brands, a bit jelly- like and more tricky to get a decent smooth bead. Seems to hold up pretty well though. Used to seal and waterproof shower waste trap, toilet connections, and an extremely heavy glass shower screen. Nothing has leaked or budged approx 3 months later so happy with how it works.

## Frequently Bought Together

- OB1 Diamond Crystal Clear Universal Sealant & Adhesive - Hybrid Technology - Excellent UV Resistance - Water Resistant - Weather Resistant - Interior & Exterior - 290ml
- OB1 PlumbersPal White - Sanitary Sealant & Adhesive - Ideal for Kitchens & Bathrooms - Mould Resistant - Works in Water - Paintable - Permanently Elastic - 290ml
- OB1 Clear Multi-Surface Construction Sealant & Adhesive - Hybrid Technology - Excellent Chemical Resistance - Water Resistant - Weather Resistant - Food Safe - 290ml

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-12*