The main purpose of a sealant is to seal joints. Sealants need to be able to sufficiently adhere to the primary substrate and be resistant to environmental conditions to remain bonded for the required life of the joint. Sealants provide excellent thermal co-efficiency between two substrates allowing for the expansion and contraction of the joint under stress. Sealants tend to contain inert filler material and are usually formulated with a natural or synthetic polymer to give the required flexibility and elongation properties. As a paste-like consistency, a sealant is typically used to fill gaps between substrates.

Sealants, seal the substrate and are particularly effective in keeping moisture away from the joint in which they are used. They provide thermal and acoustical insulation and fire resistant sealants may serve as fire barriers.

Sealants have three main functions.  

1. To fill gaps between two substrates; either mechanically or aesthetically.

2. Forms a barrier through the physical properties of the sealant itself and is a reliable weather seal application to the substrate.

3. It is able to sustain its sealing properties for the expected lifetime of the sealant.

Glazing Sealants

A one part, neutral cure, medium modulus, RTV silicone sealant. Specifically designed for use in general purpose glazing & weather seal applications.

category-mould-resistant-silicone

Mould Resistant Silicone Sealant Series is a Professional Contractors grade that has been specifically designed as a high quality wet area sealant where growth of unsightly mould and mildew needs to be minimised.

aquarium sealants Small

A high strength system which makes it ideal for use in aquariums and toughened assemblies.

construction-sealants

A high quality, low modulus, one component elastomeric polyurethane sealant. This sealant provides excellent elastic recovery and excellent weather resistance assuring a long term joint seal.

 

Fire Rated Sealants

Fire rated sealants approved to Australia Standards for application in joints and penetrations.

 

Silirub Ma Small

Silirub MA is a high-quality, neutral, elastic one-component silicone based joint sealant.

 

Bostik V70 One Part Structural Silicone Sealants

Structural Glazing Silicone Sealant is designed for use in Structural Glazing applications such as in-shop or field glazing.

Dow Corning 791

High movement (±50% Joint Movement) Weatherseal Silicone Sealant which is compatible with the complete GE/Momentive range of Structural Silicone Sealants.