Key Takeaways
Use sealants specially designed for the connection joint between window frames and glass.
Glazing joints require exceptional UV and weather resistance to survive constant sun exposure.
Choose a sealant with strong adhesion to modern frame materials like PVC, coated aluminium, and timber.
Our Australian range includes All Purpose Silicone and Glass & Glazing Silicone for durable window installations.
Sealing Glazing Joints
Glazing sealants protect the critical connection between window frames and glass panels. Glass expands and contracts with daily temperature changes. Window frames shift subtly as the building settles. You need a highly flexible sealant to absorb this movement and block moisture, air, and dirt from entering your home.
A good glazing silicone must stick reliably to both glass and your specific frame material. Glass & Glazing Silicone provides a high-performance neutral-cure bond. It offers massive UV resistance and sticks perfectly to PVC, timber, and coated aluminium. This makes it the ideal choice for specialised glass-to-glass joints and standard window installations.
For general glazing tasks around the house, All Purpose Silicone delivers excellent flexibility and weather stability. It’s also a neutral-cure formula so it won’t corrode sensitive metals. Both products retain their elasticity under constant sun exposure to maintain the integrity of your building envelope.
Ready to start your project? Use our Store Locator to find your nearest Soudal stockist and grab the right glazing sealants today.
FAQs
How do I seal a leaking aluminium window frame?
Clean the old joint thoroughly and remove any loose debris. Apply a steady bead of Glass & Glazing Silicone along the gap between the glass and the aluminium. Tool it smooth immediately to create a watertight barrier that handles extreme weather.
Can I use standard silicone to join two panes of glass together?
You need a dedicated glazing silicone for glass-to-glass applications. Standard silicones lack the required UV resistance and will degrade when sunlight passes directly through the glass. Glass & Glazing Silicone is specifically formulated to survive direct UV exposure in these joints.
What is the best sealant for a wooden window frame?
Timber expands and contracts more than metal or plastic. Use All Purpose Silicone for a highly elastic bond that moves naturally with the wood. Ensure the timber is completely dry and primed if necessary before you apply the silicone.
How do I fix a draughty window seal?
Draughts usually happen when the old putty or sealant cracks. Cut away the damaged section and clean the area with an alcohol-based wipe. Fill the gap with a fresh bead of neutral-cure silicone and smooth it out to restore the airtight seal.