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Grey Sealant

Grey Sealant: Waterproof Adiseal is Better Than Grey Silicone

Adiseal grey sealant is a high-performance sealant that can seal in dry or wet conditions. Due to its waterproof properties, it is suitable for exterior use as well as for indoor use. Adiseal performs better than grey silicone sealant for many different sealing applications.

Adiseal grey sealant

Why use Adiseal grey sealant?

There are many benefits of using Adiseal over grey silicone products.

  • Works in dry, wet, even underwater
  • Waterproof grey sealant adhesive
  • High gap fill
  • Resists mould
  • Over paintable (paint can be mixed into Adiseal Ultra Clear to make custom coloured sealant)
  • Non brittle (stays flexible)
  • UV resistant
  • Virtually odourless (no harsh smell on application)
  • Isocyanate free
  • Solvent free (safe for use on sensitive materials like polystyrene and mirrors)
  • No shrinkage or cracking
  • Prevent fungal growth
  • Prevent bacteria growth
  • Good resistance to chemicals
  • EC1 Plus certified
  • ISEGA certified – safe for use in food preparation areas

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

Details of benefits

Works in dry, wet & underwater

Adiseal can seal in dry, wet, and underwater conditions, making it a go-to choice for quick sealing needs, like fixing a leaking gutter. Unlike other products, like grey silicone, Adiseal doesn’t need a dry surface, making it perfect for emergency repairs.

Applying grey sealant underwater demonstration. Adiseal grey sealant can seal a leak even underwater.
Applying Adiseal underwater demonstration.



Adiseal excels in applications where other products like grey silicone may fail. Its waterproof nature gives it the advantage of immediate seal testing upon application. As a grey roof sealant, Adiseal seals instantly, even in the rain. Detection of rainwater infiltrating the roof allows for swift repairs and stopping leaks immediately.

Waterproof sealant demonstration.

Solvent Free

Adiseal, a solvent-free sealant adhesive, enhances safety for delicate materials like polystyrene that may be sensitive to solvents. This is particularly important when dealing with applications like bath panels, which can be susceptible to damage from grey bath sealants containing solvents. With Adiseal, you can confidently use it in bathrooms without risking the integrity of sensitive materials like polystyrene.


EC1 Plus certified

Adiseal stands out by being VOC-free and EC1 Plus certified for excellent indoor air quality standards. By selecting Adiseal, you not only benefit from its superior sealing and adhesive qualities but also contribute to a safer and healthier environment.


ISEGA certified

Adiseal’s ISEGA certification ensures its suitability for use in food preparation areas, making it an ideal choice for a grey kitchen sealant. This certification guarantees safety for environments where food is handled and prepared.


Interior & exterior use

Adiseal is exceptionally versatile, perfect for both interior and exterior use. It outperforms dedicated products, making it a superior solution for diverse sealing needs. Whether for a grey floor or roof sealant, Adiseal excels, offering consistent results in any application.

Strongest sealant adhesive

How to use a grey sealant

How to use a grey sealant

  1. Surface Preparation

    Ensure that the surface to be sealed is clean, dry, and free from dust, grease, and other contaminants. Use a suitable cleaner or solvent, if necessary, to achieve a clean surface.

  2. Cut the Nozzle

    Cut the nozzle of the sealant. The size of the nozzle opening should correspond to the width of the joint or gap you intend to fill.

  3. Apply the Sealant

    Slowly and steadily move the sealant gun along the joint or gap, applying a continuous bead of sealant.

  4. Tooling and Smoothing

    Once the sealant has been applied, use a suitable tool such as a caulking to shape the sealant. This helps to achieve a neat and professional finish.

  5. Clean Up

    Immediately clean any excess sealant or smudges with a damp cloth or solvent according to the manufacturer’s instructions. Be sure to remove any sealant from tools and equipment before it hardens.

  6. Curing Time

    Allow the sealant to cure according to the manufacturer’s instructions. Curing times can vary, so it’s essential to follow the recommended waiting period before subjecting the sealant to any stress or contact with water.

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 Adiseal prodcuts

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

Other colours

Adiseal is also available in the following colours:

Frequently asked questions about grey sealant

How to remove grey sealant?

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 grey sealant adhesive?

Adiseal is the best grey sealant. 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.

Is Adiseal a light grey sealant or a dark grey sealant?

Adiseal Grey is between a dark grey sealant and light grey sealant but is slightly more towards a light grey colour.

What surfaces can grey sealant adhere to?

Grey sealant can adhere to a wide range of surfaces, including metal, wood, glass, ceramic, concrete, and certain plastics. However, it is always advisable to check the manufacturer’s guidelines for specific surface compatibility.

Is grey sealant waterproof?

Some sealants are formulated to provide waterproof properties, making them suitable for both indoor and outdoor applications. However, it is important to verify the specific waterproofing capabilities of the grey sealant product being used.

Can grey sealant be used for outdoor applications?

Some sealants are suitable for outdoor use. However, it is important to choose a grey sealant specifically labeled for exterior applications and consider any specific environmental challenges the sealant may encounter.

What is the best grey silicone?

Adiseal has been shown to outperform grey silicone. Adiseal can be applied in dry, damp, wet or even underwater. Unlike grey silicone, Adiseal can seal instantly making it ideal for emergency repairs as well. Adiseal provides a strong, durable and waterproof seal.

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.