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Professional Construction Products

Developing high performance construction products through extensive research and testing.

Clear Sealant

(Last Updated On: 2 October 2023)

Clear Sealant: Adiseal Transparent Seal

Adiseal clear sealant is a ultra clear product that can seal instantly. It works in dry or wet conditions. It can be used to seal a variety of items and is equally great as an exterior clear sealant as well as for indoor use. It stayed transparent the longest in our test in water whereas other products turned white.

clear sealant comparison. Adiseal ultra clear vs silicone clear sealant.

Which clear sealant?

Not all clear sealants are truly transparent when applied, often appearing cloudy instead. However, Adiseal Ultra Clear stands out as the top choice for a waterproof clear sealant. Unlike other products, it delivers exceptional clarity both during application and after drying, ensuring a crystal clear finish. With Adiseal Ultra Clear, you can achieve the desired transparency for your sealing projects.

Transparent sealant comparison vs popular sealant and adhesive competitor.
Clear sealant comparison vs popular competitor, *** sealant and adhesive.


The provided image showcases the remarkable clarity of Adiseal Ultra Clear. In contrast, the competitor’s product, despite claiming to be the top choice, exhibits a noticeable blue tint. This comparison further emphasizes the exceptional transparency of Adiseal Ultra Clear, making it the preferred option.


Clear silicone sealant

Cheaper clear silicone sealants often lack true transparency, appearing almost white instead of clear. However, Adiseal Ultra Clear stands out with its crystal-clear appearance upon application, which remains unchanged even after drying. In the accompanying image, the distinction between a standard clear silicone on the left and the previous formula of Adiseal Ultra Clear on the right is evident. The latest version of Adiseal Ultra Clear (pictured in the above image) further improves upon its clarity, offering an even more transparent finish than before.

Silicone clear sealant vs Adiseal Ultra Clear sealant and adhesive. Adiseal is crystal clear whereas the silicon is cloudy.
Silicone clear is cloudy compared to Adiseal Ultra Clear which is crystal clear.

Test in water

Adiseal Ultra Clear stands out as the top choice due to its exceptional clarity, even when submerged in water. In a rigorous test conducted by our team, Adiseal Ultra Clear emerged as the only product that maintained its transparency both in and above water. To conduct the test, we applied sealants from various manufacturers into clean plastic cups. These cups were then filled halfway with water and covered with a plastic sheet, ensuring consistent conditions for all samples. After several days, the test results revealed the unmatched performance of Adiseal Ultra Clear, as depicted in the image below.

Clear sealant test in water. Adiseal stayed clearest. A popular competitor *** sealant and adhesive has turned white.
Test results for clear sealant in water. Adiseal has stayed the clearest sealant.

The image clearly illustrates the significant differences in performance among the tested products. While the competitor sealants exhibited a concerning white discoloration upon contact with water, Adiseal stood out as the top performer. Even in challenging conditions, Adiseal maintained its impressive clarity above the waterline, with only a slight cloudiness observed below the water. Notably, the competitor’s claim of being the number 1 sealant was disproven, as their product displayed the poorest performance, turning white both above and below the waterline. Surprisingly, their previous formula fared better than their new formula, which exhibited white discoloration both above and below the waterline. Adiseal’s exceptional performance in the water test solidifies its position as the superior product choice.

Clear sealant in water comparison. Adiseal vs popular competitor. *** sealant and adhesive has turned completely white whereas Adiseal Ultra Clear has stayed the clearest sealant.
Adiseal Ultra Clear sealant vs *** sealant and adhesive. The competitor *** sealant and adhesive has turned white, whereas Adiseal Ultra Clear has stayed clear.

Other Benefits of Adiseal Ultra Clear

The standard adhesive drying time for Adiseal is 24 – 48 hours to fully cure. Curing times can increase in colder temperatures.


Waterproof clear sealant

Adiseal ultra clear waterproof sealant offers unparalleled clarity and exceptional sealing capabilities. Unlike other sealants on the market, Adiseal Ultra Clear is formulated to effectively seal leaks in various conditions, leaving no room for water infiltration. Whether you’re dealing with a dry surface, a damp environment, or even a fully submerged situation, this remarkable product rises to the challenge.

Adiseal Ultra Clear maintains its crystal-clear appearance and delivers instant sealing results. Its formulation allows it to create a watertight barrier, even in the presence of water, ensuring rapid and reliable repairs. This means you can confidently address leaks and perform effective waterproofing, regardless of the surrounding moisture levels.

One of the standout features of Adiseal Ultra Clear is its versatility. This exceptional product can be applied to a wide range of materials, including metal, wood, plastic, concrete, and many others. Its ability to adhere to diverse surfaces makes it an ideal choice for emergency repairs, providing peace of mind even in the midst of rainy weather. Whether you need to seal gaps, fix cracks, or address other waterproofing needs, Adiseal Ultra Clear is the product of choice.

Waterproof sealant is available in different colours as well as clear.


Interior and exterior clear sealant

Adiseal Ultra Clear is a versatile clear waterproof sealant suitable for use as a interior and outdoor sealant. Its flexibility and adaptability make it an excellent choice for various sealing and bonding applications. With its UV resistance, Adiseal Ultra Clear maintains clarity and performance even when exposed to sunlight and outdoor elements, making it reliable for roof sealing and gutter repairs. It creates a transparent and seamless finish that effectively protects roofs from water damage, ensuring long-term integrity.

Adiseal Ultra Clear is also ideal for clear gutter sealing, effectively sealing gaps, joints, and connections, preventing water infiltration and maintaining the aesthetic appeal of your gutter system. With Adiseal Ultra Clear, you can confidently undertake roofing and gutter projects, knowing you have a product that remains flexible, UV resistant, and provides exceptional waterproofing capabilities.

Clear roof sealant

Adiseal excels at instantly sealing roofs, even in rainy conditions. It is highly versatile and can effectively seal various types of roofing materials. Whether you need it for emergency repairs or permanent fixes, Adiseal is a reliable choice.

Clear gutter sealant

Adiseal Ultra Clear is not only suitable for various applications but also serves as an effective clear gutter sealant. Its exceptional sealing capabilities extend to both dry and wet conditions. When using Adiseal as your clear gutter sealant, you can trust it to prevent leaks even during rainfall.

CT1 clear sealant vs Adiseal Ultra Clear

In our comparison test between CT1 clear sealant and Adiseal Ultra Clear, Adiseal emerged as the superior product. When applied, Adiseal displayed a higher level of clarity compared to CT1 clear. Furthermore, even after drying, Adiseal maintained its superior clarity in comparison to CT1.

In the water test as well, Adiseal outperformed CT1 by staying clearer. We are confident in the quality of our product, which is why we are offering tradespeople in the UK a free tube to try it for themselves. To claim your free tube, please visit our offer page. Kindly indicate your preference for the clear version, as we typically send the white version.

Experience the difference of Adiseal Ultra Clear and see for yourself why it stands out as the top choice in clear sealants.


How to use a clear sealant

How to use a clear sealant

  1. Surface Preparation

    Ensure the surface is clean, dry, and free from dust, grease, and other contaminants. Use a suitable cleaner if necessary and allow the surface to fully dry before applying the sealant.

  2. Cut the Nozzle

    If using a tube of sealant. The size of the nozzle opening will determine the width of the sealant bead.

  3. Apply the Sealant

    Starting at one end of the desired area, slowly and evenly apply the sealant in a continuous bead. Maintain a consistent pressure on the caulking gun or tube to ensure a smooth and uniform application.

  4. Tooling

    Immediately after applying the sealant, use a sealant tool or a moistened finger to smooth and shape the bead. This helps ensure proper adhesion and creates a neat finish. Remove any excess sealant.

  5. Drying and Curing

    Allow the sealant to dry and cure according to the manufacturer’s instructions. This process may take several hours or longer, depending on the sealant type and environmental conditions.

  6. Clean-Up

    Clean excess sealant from tools, surfaces, and your hands using an appropriate solvent or soapy water before it dries.


Tip: To store Adiseal once opened, leave about 1cm worth of product out of the nozzle and store the tube upright in a cool dry place. Adiseal requires moisture for it to cure. The exposed part out of the nozzle will cure creating a cap. To re-use Adiseal, pull the cured part out or cut the nozzle until the uncured part is reached.

Where to buy?

In the UK, to buy clear sealant, please contact us for details of your local stockist. For other countries, our Adiseal ultra clear sealant can be purchased from https://guglue.com/product/adiseal-adhesive-sealant-ultra-clear-290ml/

Other colours

Adiseal is also available in the following colours:

Paint can also be mixed into Adiseal Ultra Clear to create a custom coloured sealant.



Frequently asked questions about clear sealant

How to remove clear sealant?

To remove clear sealant, varies on what type of product it is. Most silicone sealants are solvent based. For solvent based products, Adisolve can be used to deactivate the product. Spraying Adisolve on top of the product will help the silicone peel away from the material it is stuck to. Use a sharp item then to cut away any sealant that remains stuck to the surface.

What is the best clear sealant?

Adiseal Ultra Clear is the best clear sealant. It is crystal clear and is more clear than other products. Adiseal remains clear in water whereas other products we tested turned white. It is a waterproof product that is suitable for use both interior & exterior applications. Adiseal works in the dry, damp, wet and even underwater. It seals instantly even in the rain. It is UV resistant and has many other benefits

What is a clear waterproof sealant?

It is a type of sealant specifically designed to provide a transparent, watertight barrier, ensuring effective protection against water infiltration.

Where can clear sealants be used?

It can be used in a wide range of applications, including sealing windows, doors, glass panels, bathroom fixtures, outdoor structures, and more.

How do clear sealants differ from colored sealants?

Clear sealants are transparent and provide an invisible seal, while colored sealants have a specific hue or tone that can be visible on the surface.

What surfaces can clear waterproof sealants adhere to?

Clear waterproof sealants can adhere to various surfaces, including glass, metal, plastic, ceramics, wood, and certain types of fabrics.


Suhail Matadar has extensive experience in the construction industry as an electrician, involved in installing, inspecting, and testing electrical systems in various projects. He excelled in sales, working for a major UK wholesaler, selling construction products to professionals and the DIY market. Suhail's background includes working at a leading home emergency repair company dealing with trades people. With a BEng (Hons) degree in Electronic Engineering, Suhail has worked with PLCs in the nuclear fuel manufacturing industry. During his studies, he gained practical experience at a chemical manufacturing company known for producing award-winning cleaning, hygiene, and livestock protection products for over a century. Currently, Suhail runs a global business specialising in supplying, researching, testing, and distributing chemical construction products like adhesives and sealants.