EJW’s Swiss Sika RainTite Waterproofing Membrane (1kg) is an original Swiss Sika premium single-component, high-elasticity acrylic waterproofing coating. It forms a flexible and durable waterproof membrane that effectively prevents rainwater seepage. With excellent elasticity and strong adhesion, it is particularly suitable for Hong Kong’s high-humidity, rainy and coastal environment. It can be applied directly onto concrete, brickwork, metal surfaces and around aluminium window frames.
Product Description
This waterproof membrane is simple to use — ready to apply straight from the container. Once cured, it forms a highly elastic waterproof layer that effectively resolves common leakage issues at window edges, sills, parapet walls and balconies. When used together with EJW’s aluminium window engineering and mandatory window inspection services, it simultaneously addresses both structural safety and waterproofing needs. It is the ideal choice for old building renovations, mandatory window inspection projects and residential waterproofing repairs.
Product Features
✔ Swiss Sika original premium single-component acrylic waterproofing coating
✔ High-elasticity waterproof membrane, able to accommodate minor substrate expansion and cracks
✔ Excellent weather resistance and UV protection, ideal for Hong Kong’s coastal and high-humidity environment
✔ Strong adhesion, can be applied directly on concrete, brickwork, metal surfaces and around aluminium window frames
✔ Water-based, low odour, easy application; forms a durable waterproof protective layer after drying
Application Scope
✔ Waterproofing treatment for aluminium window edges, sills and door frames
✔ Waterproofing for balconies, rooftops, parapet walls and roof joints
✔ Supporting waterproof repair for mandatory window inspection projects
✔ Old building renovation and external wall leakage repair
✔ Waterproof safety upgrade for high-rise residential and commercial buildings
Installation and Maintenance
The substrate must be clean, solid and free of standing water before application. EJW recommends professional technician application. Apply a base coat first, followed by a thickened top coat. Generally, two coats are sufficient to achieve optimal waterproofing performance. For daily maintenance, simply wipe the surface with clean water or neutral detergent.
Swiss Sika RainTite Waterproofing Membrane, when used together with EJW’s aluminium window engineering and mandatory window inspection services, comprehensively enhances the waterproofing and safety performance of windows and buildings. It is a trusted waterproofing solution for Hong Kong property owners.