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Wet Sealant

Wet Sealant: Adiseal Seals in Damp, Wet & Underwater

Adiseal wet sealant can be applied in dry, damp, wet and even underwater. It provides a superior water tight seal on many different waterproofing applications. Adiseal has the ability to seal instantly, allowing the seal to be tested with water immediately straight after application, which can save time and money on labour costs. Another advantage of instant sealing is the ability to carry out emergency repairs by stopping leaks immediately even when the surfaces are wet.

Wet sealant demonstration. Underwater sealant sealing a leak in water.
Wet sealant demonstration, sealing a leak in underwater.

Why use a wet sealant?

Sealants typically need a dry surface to adhere effectively. When working with water-containing items, drying the surface can be time-consuming, especially in large-scale applications like pools. Additionally, not all sealants maintain their strength when water is reintroduced.

There may also be occasions where a leak may want to be stopped immediately to stop it causing damage, like a leaking gutter. Adiseal wet sealant can seal the leaking gutter straight away even in rainy conditions outside.

What is the best wet sealant?

Adiseal has been found to be the best wet sealant in our experience. It seals instantly, has strong mould resistance, strong colour retention in water and provides a high-quality durable water tight seal.

Instant sealing

Adiseal can seal leaks instantly, even when significant water is flowing from a large gap or hole. In a demonstration, a 250mm by 10mm hole was cut into a plastic tub, and a bucket of water was poured in. Adiseal sealed the leak instantly even with a large amount of water pouring through the hole. Watch the video for the demonstration.

Waterproof wet sealant demonstration video.

Best mould resistant sealant test

For a sealant exposed to damp conditions, strong mould resistance is crucial. To showcase Adiseal’s robust mould resistance, we conducted a test using various products. Each product was applied inside clean plastic cups, partially filled with water, and covered to prevent external contaminants.

Mould resistant test result. Adiseal stayed mould free longest.
Strongest mould resistant sealant test results in water after 90 days.


Mould resistance test result

As can be seen in the image, Adiseal remained mould free the longest. This was after an impressive 90 days of being submerged in the same water.


Clear wet sealant

Adiseal is available in several colours and also a transparent (clear) version. Some clear sealants might say clear on the tube but are cloudy when applied. Adiseal clear wet sealant is transparent and was the strongest at maintaining its clarity in our test when submerged in water.

Clear wet sealant in water comparison. Adiseal stays clear in water.
Colour retention of sealant. Test in water.

Adiseal retains its clear appearance remarkably even after continuous 16-day submersion in tap water. In contrast, the competitor’s clear product in the image turned white, signifying substantial loss of clarity. This visual evidence underscores Adiseal’s superior underwater performance.

A clearness retention test was conducted in water with sealants from various manufacturers. Each product was applied inside clean plastic cups, partially filled with water, and covered. The image below depicts the results after 16 days.

clear wet sealant test in water
Clearest sealant test results when sealant were kept in water.

Adiseal top in colour retention test

From the results of the test, Adiseal was the only product that maintained its clarity both above and underwater. Unlike other alternatives, Adiseal retained its transparent appearance regardless of the surrounding conditions.

Benefits of Adiseal Wet Sealant & Adhesive


Adiseal is available in the following colours:

Adiseal can be manufactured in any RAL colour.

How to apply wet sealant

Details of how to apply wet sealant

  1. Prepare the surface:

    Clean the area thoroughly, removing any dirt, debris, or old sealant.

  2. Cut the tip of the sealant tube

    Use a utility knife or scissors to cut the tip of nozzle on the sealant tube. The size of the cut will determine the bead size.

  3. Load the sealant tube

    Insert the tube into a caulking (sealant) gun or dispenser and secure it in place. Press the trigger or lever to load the sealant into the nozzle.

  4. Apply the sealant

    Hold it at an angle and place the nozzle against the surface. Squeeze the trigger or lever steadily to apply a continuous bead of sealant. Maintain a consistent pressure for an even application.

  5. Smooth and shape the sealant

    Immediately after applying the sealant, use a caulk smoothing tool, a moistened finger, or a wet cloth to smooth and shape the sealant. This helps create a neat and uniform finish. As Adiseal sticks to a wet surface, instead of just using a moistened finger, use Adisolve or a soapy solution.

  6. Clean up

    Wipe away any excess sealant with a damp cloth before it cures. As Adiseal sticks to wet surfaces, use Adisolve to help remove any excess sealant.

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 wet sealant?

In the UK, to buy wet sealant, please contact us for details of your local stockist. For other countries it can be bought from online sellers like www.guglue.com who can ship worldwide. Please contact us for details of your local stockist or to enquire about the exclusive distribution opportunity for other countries.

Frequently asked questions about wet sealant

What is the best wet sealant?

Adiseal is the best wet sealant. It works in dry, damp, wet and even underwater. It seals instantly, has the strongest mould resistance and colour retention underwater.

What are the common applications of wet sealants?

They are commonly used for sealing and waterproofing areas such as swimming pools, bathrooms, showers, basements, and outdoor structures that are exposed to rain or water.

What is the best sealant for wet areas?

Adiseal is an excellent choice for wet areas as it’s a versatile adhesive and sealant with strong water-resistant properties.

What sealant can I use on wet surfaces?

You can use Adiseal as it’s a reliable adhesive and sealant with strong water-resistant properties suitable for wet surfaces.

Can you apply sealant in the wet?

Yes, you can apply Adiseal sealant in wet conditions, as it has water-resistant properties that allow for effective application even on damp surfaces.

What sealant can be used when wet?

Adiseal adhesive and sealant can be applied in dry, damp, wet and even underwater. Adiseal can seal instantly even in the rain making it ideal for emergency repairs as well as long term sealing.

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.