Effective joint sealing is essential for maintaining the durability, energy efficiency and weather resistance of buildings. Joints occur in various parts of a structure, including between precast concrete elements, facades, windows, doors, floors, walls and storage tanks. Properly sealed joints prevent the passage of air, water, chemicals and smoke, while also providing thermal and sound insulation to enhance overall building performance.
Although joint sealing represents a small fraction of total construction costs, it plays a critical role in air and watertightness, reducing the risk of structural damage and energy loss. Choosing the right sealant from the start helps prevent costly replacements and ensures the longevity of your project. With Sika's high-quality sealant solutions, you can achieve superior protection, flexibility and long-term performance across a wide range of applications.
Advantages of Sika's Joint Sealing Solutions
- Enhance building durability, weather resistance and energy efficiency.
- Effectively seal joints in precast concrete, facades, windows, doors and more.
- Prevent the passage of air, water, chemicals and smoke.
- Improve thermal and sound insulation for overall building performance.
- Help avoid costly repairs by ensuring long-term structural integrity and efficiency.
- Trusted by trade professionals for reliable performance and flexibility across all types of projects.
Explore Our Joint Sealing Solutions
Sikaflex® Purform® Polyurethane Technology with Ultra-Low Monomer Content
Purform® is a revolutionary new polyurethane technology, developed by Sika. It is a more sustainable and environmentally friendly alternative to traditional polyurethane based products, thanks to its ultra-low VOC and low monomer content.
Using Purform® in place of traditional polyurethane within two of our key products, Sikaflex®-11 FC and Sikaflex® PRO-3, future-proofs our products.
Purform® technology meets the EU REACH regulations which came into effect in 2023. Like many polyurethane-based sealants and adhesives, Sika products using Purform also benefit from many attributes including:
- Better tooling and application - particularly in colder weather - than traditional polyurethanes
- Improved performance in damp surfaces
- Resistant to many chemicals and maintains a high level of performance, even in harsh environments
- Creep resistance
- Bubble free curing
Download Library
FAQ
Joint sealing is essential for protecting buildings from water ingress, air leaks and structural movement. Proper sealing prevents damage caused by moisture, reduces energy loss and enhances durability, particularly in critical areas like facades, floors and expansion joints.
Sika provides a comprehensive range of high-performance sealants, including Sikaflex® and SikaSeal®, designed for use in façades, floors, glazing and water-retaining structures. These sealants offer flexibility, durability and resistance to weather, chemicals and movement.
Choosing the correct sealant depends on factors such as movement capability, exposure conditions (UV, weather, chemicals) and substrate compatibility. Sika’s range includes options for high-movement joints, waterproof applications and fire-rated solutions.
Yes, Sika joint sealants are formulated for both indoor and outdoor application areas as we have both UV and non-UV stable sealants, providing long-lasting protection in areas like windows, doors, flooring and external façades. They offer excellent adhesion and weather resistance.
For best results, clean the joint surface thoroughly to remove dust, grease and contaminants. Use a suitable primer if required, apply the sealant evenly with a caulking gun and tool it smoothly for a secure bond. Ensure correct joint dimensions and use a backing rod where necessary to control sealant depth.
For trade professionals and DIY customers, Sika joint sealing products are available for purchase through our nationwide network of distribution partners. To purchase our products, please use our distributor map to locate your nearest stockist.
For larger projects or specific enquiries, please contact our team directly.
For information about training opportunities, please contact our technical support team.
