Sealants & Adhesives

With more flexibility than caulk, sealants contain more silicone which makes them extra flexible. Due to this flexibility it is better for areas that are subject to constant temperature and humidity changes. At Decorating Centre Online we have a range of silicones, sealants & adhesives which cover a range of different uses and projects.


With a wide range of sealants available for a variety of jobs and projects, at Decorating Centre Online we stock a large collection of useful decorating tools which make using sealants and silicones easy.

Designed to hold up much stronger in areas of high humidity such as bathrooms and kitchens, our range of Sealants offer superior performance and an excellent level of adhesion, with some of our sealants suitable for painting. If you’re unsure which Sealant you should choose, we have a friendly team ready to provide help and advice.

Popular Sealants

Hippo Pro 3 Adhesive Sealant Filler

An adhesive, sealant and filler in one, the Hippo Pro 3 can be applied to a range of surfaces including metals, plastics, glass and concrete. Chemical and mould resistant, the Hippo Pro 3 can be used both internally and externally and can be painted over once fully dried.

Soudal Bathroom & Kitchen Silicone 290ml

A sanitary silicone, the Soudal Bathroom & Kitchen Silicone features a mould resistant and anti-fungicidal agent perfect for using in areas of humidity such as kitchens and bathroom. Low odour and resistant to high/low temperatures, this white coloured sealant is easy to use and can be applied with a manual or pneumatic caulking gun.

Red Devil One Time

A high performance professional acrylic sealant, the Red Devil One Time is mould growth resistant and can be used on both interior and exterior surfaces. Sealing cracks and gaps in brickworks, stones, concrete and between skirting and walls, this highly professional sealant can also be painted over once fully dried. 

How to apply Sealants?

If you're looking to apply Sealant just as good as a decorator, then simply follow this step by step guide on how to perfect your silicone at home.

  • Before you begin it is super important that you surface is clean, dry and free from any dust or debris. 
  • Next, apply your sealant. Simply cut the tip of the tube and using a caulking gun squeeze the sealant into the gap, ensuring that you have filled it completely.
  • Once applied, use a smoothing tool or applicator such as the Axus Selant Applicator smooth our the surface and create a neat and tidy finish. At this point, remove any excess sealant and wipe the surface clean with a damp cloth.
  • Leave the sealant to completely dry and avoid touching if possible

Which Sealant is good for using on exterior surfaces?

Stocking several sealants that are suitable for using on exteriors such as windows, guttering and roofing.

Our top recommendations include, Soudal Window & Door Easy Sealant, designed for working both externally and internally, this Soudal Sealant can be painted over and is a great sealant for construction and general purpose joint sealing, between masonry, uPVC ceramic tiles, plinths and walls.

Featuring a high resistance to fluids, Soudal Roof & Gutter Sealant is best used as a repair product for leaks in gutters, drainpipes and roof covers. Easy to apply, this exterior sealant is available in black to match most guttering, drain pipes & roof covers.