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Professional Construction Products

Developing high performance construction products through extensive research and testing.

Gutter Sealant

Roof & Gutter Sealant: Waterproof Adiseal

Adiseal roof and gutter sealant is a waterproof sealant that can instantly seal gutters and roofs, even in the rain. It provides a strong, long-lasting, flexible and weatherproof seal on gutters, gutter joints, gutter seams, roofs and many other sealing applications. Adiseal is available as a waterproof black gutter sealant as well as in other colours. Adiseal works on sealing PVC plastic gutters, metal gutters, sealing gutter leaks as well as other roof and gutter materials.

As well as Adiseal being a great gutter seam sealer, it is also a high-performance gutter glue due to its waterproof adhesive properties. It provides a strong, flexible, UV resistant and durable adhesive bond to glue gutters.


gutter sealant that can repair instantly even in the rain.


What is the Best Gutter Sealant?

Adiseal is a top choice for gutter sealant with exceptional performance and instant sealing. Its fast-acting formula provides reliable protection against leaks and water damage. Unlike other sealants, Adiseal can be applied in damp and wet conditions, saving time and enabling quick repairs on leaking gutters.

Adiseal stands out with its exceptional durability and weather resistance. It can withstand UV rays, temperature changes, and heavy rainfall, providing long-lasting performance and reducing the need for frequent reapplication.


Instant Sealing even in Rain

Adiseal is excellent for repairing gutter leaks & roof leak due to its instant sealing capability, which works effectively with various gutter & roof materials like plastic gutters. It creates an immediate, watertight seal upon application, efficiently stopping water leaks. Adiseal is specifically designed to perform well even in rainy conditions, making it invaluable for addressing gutter joint leaks and being a gutter seam sealer without the need to wait for dry weather.

In our demo video, we highlighted Adiseal’s capacity to seal underwater instantaneously. We simulated a leak by creating a 250mm x 10mm hole in a large plastic box, filling it with water, and applying Adiseal. Despite the initial water flow, Adiseal promptly sealed the leak. Watch the video to witness Adiseal’s impressive performance.


Waterproof Properties

Adiseal’s effectiveness in sealing gutter joints, gutter seams and roofs during rain is due to its exceptional waterproof properties. Its formulation creates a strong water-repellent barrier that prevents water from penetrating the sealed area. This means Adiseal maintains its sealing capabilities even in rainy weather, providing reliable protection against gutter leaks. Its waterproof adhesive and waterproof seal nature ensures the seal’s integrity, keeping your roof or gutters watertight and effectively diverting water away from your home.

Demonstration of waterproof gutter sealant sealing a leak underwater.
Demonstration of waterproof gutter sealant sealing a leak underwater.


Weather Resistance

Adiseal thrives in extreme weather conditions, from scorching heat to freezing cold, heavy rain, and intense UV exposure. Its advanced formula is tailored to withstand harsh environmental elements, ensuring the durability of your gutter seal. In even the most severe weather conditions, Adiseal consistently delivers reliable performance, safeguarding against leaks, water damage and seal leaking gutters instantly.



Benefits of Adiseal

Some of the reasons why Adiseal sealant is the best sealant for gutters & roofs:


Best gutter sealant

Gutter repair & cleaning

For an effective seal on a leaking gutter joint, begin with a thorough cleaning. Eliminate old sealant and clear any roof debris using a brush, ideally a fine one, like a painting brush, to remove fine dust.

Before applying the sealant, ensure the application area is entirely clean. Use Adisolve solvent cleaner to remove old sealant, oil, grease, tar, dirt, dust, and stubborn deposits. Adisolve effectively deactivates most silicon-based sealants, simplifying their removal.

For more details see our how to repair a gutter leak page.


How to use a gutter sealant

How to use a gutter sealant

  1. Clean the gutter

    Start by thoroughly cleaning the gutter and downspout. Remove any debris, leaves, or dirt using a brush or a garden hose. It’s essential to have a clean surface for the sealant to adhere properly.

  2. Apply the sealant

    Apply the sealant using a caulk gun or an appropriate applicator directly to the areas requiring sealing, such as joints, seams, visible cracks, or gaps. Begin at one end of the gutter and proceed steadily with an even application to the other end.

  3. Smooth and shape the sealant

    After applying the sealant, use a putty knife or a gloved finger to smooth and shape it. This ensures even coverage, strong adhesion, and a tidy finish. Remove any excess sealant that may have spread onto the gutter surface.

  4. Allow for drying and curing

    Refer to the sealant’s instructions for the recommended drying and curing time, which can range from several hours to a day. During this period, refrain from exposing the sealant to water or extreme weather conditions.

  5. Inspect and test

    After the sealant has dried, check the gutter for any missed spots or areas needing further sealing. Verify that all joints and gaps are securely sealed. To test the sealant’s effectiveness, pour water into the gutter and observe for any leaks.

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.


Gutter type

Gutters can be made from a number of different materials. The most common materials used are PVC plastic gutters and metal. Gutters are also made from steel, copper, concrete, aluminum, zinc and other materials. Plastic gutters are cheap, lightweight and easy to work with. They are available in a number of different colours but the most common colours are white, black, grey and brown. Whatever sealant for gutters is used, it needs to provide good adhesion on the material for it to seal properly. Adiseal adhesive & sealant provides the strongest adhesion and sealing properties on a number of different materials.


Clear gutter sealant

Adiseal Ultra Clear can also be used as a clear gutter sealant. Just like the other Adiseal adhesive & sealant range, it will seal leaks in even in the rain. Adiseal is also available as a black roof & gutter sealant.



Where to buy Adiseal gutter sealant

In the UK, Adiseal gutter sealant can be purchased from Adiseal stockist. Contact us for further details. For other countries, please visit www.guglue.com


Frequently asked questions about repairing gutter leak

Why is gutter sealant important?

Gutter sealant is important as it helps maintain the integrity of the gutter system by preventing leaks, water damage, and potential structural issues.

What types of gutter materials can be sealed with gutter sealant?

Gutter sealant can be used on various types of gutter materials such as aluminum, vinyl, PVC, steel, and even copper.

How do I know if I need to use gutter sealant?

Signs that indicate the need for gutter sealant include visible leaks, water dripping from gutters, water stains on walls or ceilings, and water pooling near the foundation.

How long does gutter sealant last?

The longevity of gutter sealant depends on factors such as the quality of the product, exposure to weather conditions, and maintenance. Generally, high-quality sealants can provide long-lasting protection for several years.

Can gutter sealant be applied in wet conditions or during rain?

Some gutter sealants, like Adiseal, are specifically designed to be applied in wet conditions and can effectively seal even during rain. It is important to check the product’s instructions for specific guidelines.

How can I maintain the effectiveness of gutter sealant?

Regular gutter cleaning and inspection, along with periodic reapplication of gutter sealant as needed, can help maintain its effectiveness and extend its lifespan.

What is the best sealant to use on gutters?

Adiseal sealant is our best sealant to use on gutters when carrying out emergency repairs or a permanent seal. It seals instantly even when the gutter is wet making it ideal for sealing in the rain. Adiseal sealant is waterproof, weatherproof, UV resistant and stays flexible.

Which sealant is best for gutters?

Adiseal provides a superior seal on gutters. It provide a strong, flexible, waterproof, UV resistant and highly durable seal. Adiseal can seal instantly in dry, damp and even in rainy conditions.

Can Adiseal be used as a gutter glue?

Yes Adiseal can be used as a gutter glue. Adiseal provides a strong, flexible, UV resistant, durable and waterproof adhesive bond to glue gutters.


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.