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Sealing a Terrace or Balcony Using Polyurethane Resin
Your terrace or balcony might look perfectly fine on the surface—ceramic tiles in great condition, intact grout, no loose tiles, and no visible damage. Everything suggests it should be watertight. Yet, water still seeps through, causing frustration and potential damage.
In such cases, it’s worth considering sealing the surface with flexible polyurethane resin specifically designed for ceramic coverings.
Applying polyurethane resin not only restores the waterproofing of your terrace or balcony but also provides added benefits such as resistance to UV radiation and yellowing. This ensures long-term protection while maintaining the aesthetic appeal of your outdoor space.
Choose polyurethane resin to enjoy a durable, seamless, and weather-resistant finish for your terrace or balcony.
This Solution Offers Many Advantages. Using polyurethane resin to seal a terrace or balcony comes with several benefits. First and foremost, it is a quick and effective solution. Unlike other methods, it doesn’t require removing and replacing the entire ceramic covering, saving both time and costs associated with material replacement.
How to Economically Seal a Balcony or Terrace
Sealing a terrace with polyurethane resin is significantly less expensive compared to replacing the entire ceramic covering and performing comprehensive waterproofing. It’s a cost-effective solution for those looking to repair leaks and ensure the terrace is watertight while keeping expenses under control.
It’s important to note that a polyurethane resin layer designed for ceramic coverings will have a glossy finish. Additionally, the resin-coated surface can become slippery, particularly when wet.
Despite these potential drawbacks, sealing a terrace with polyurethane resin remains an attractive option due to its speed, cost savings, and ability to preserve the existing ceramic covering. It provides durable protection against leaks and moisture, resulting in long-term benefits and a more enjoyable terrace experience.
How to Seal a Ceramic-Covered Terrace Using Polyurethane Resin
To effectively seal a ceramic-covered terrace, follow these steps to ensure optimal results:
- Surface Preparation
The terrace surface must be clean, grease-free, and free of algae or chemicals that may affect adhesion. Grout lines should be intact or repaired, and any cracks or irregularities must be filled and leveled. - Primer Application
Apply SIKA Primer 490T as the first layer to enhance adhesion. Ensure an even coat across the entire surface. - Applying Polyurethane Resin
Use Sikalastic 490T polyurethane resin, applying 2-3 layers depending on the desired level of protection:- Apply using a roller or brush, ensuring even coverage.
- Follow the manufacturer's guidelines for the appropriate product quantity.
Consumption rates for Sikalastic 490T:
- For compact substrates with light foot traffic: ~0.7 kg/m² (2 layers, 0.3-0.4 kg/m² per layer).
- For porous substrates with heavy foot traffic: ~1.0 kg/m² (3 layers, 0.3-0.4 kg/m² per layer).
- Curing Time
After applying Sikalastic 490T, allow the coating to dry and cure properly. Drying time depends on environmental conditions such as temperature and humidity. Full curing is achieved after 7 days, ensuring the resin forms a durable, waterproof layer. - Final Protection
Once cured, the polyurethane resin layer will protect the terrace from water, moisture, UV radiation, and other harmful external factors. Its flexibility ensures resistance to cracking and tearing, providing long-lasting durability. - Maintenance
Sikalastic 490T is easy to clean, helping maintain the terrace’s aesthetic appeal and functionality over time.
This sealing method not only prevents leaks but also extends the lifespan of your terrace, ensuring a durable, waterproof, and visually appealing outdoor space for years to come.
Which Material to Use for Sealing a Terrace? - Sikalastic 490T Polyurethane Resin
Sealing a ceramic-covered terrace with Sikalastic 490T polyurethane resin is an effective way to create durable and watertight insulation. This one-component, clear liquid polyurethane coating provides robust protection against water and other harmful elements.
Sikalastic 490T is a glossy, transparent coating with a tough-elastic finish. It retains its properties over time, remaining flexible and transparent. The product cures by reacting with moisture in the air, making it resistant to UV rays, weather conditions, and alkalis, making it ideal for terrace applications.
Applications
Sikalastic 490T is widely used for:
- Waterproofing balconies and terraces.
- Sealing skylights, greenhouses, and similar surfaces.
- Protection against frost, CO₂ penetration, and acid rain.
Key Features
- Easy and Economical Application: Suitable for natural stone, ceramics, glass, and polycarbonate.
- UV and Weather Resistance: Maintains durability and appearance under harsh conditions.
- Temperature Resistance: Operates effectively between -30°C and +80°C.
- Versatility: Ideal for a range of surfaces and applications.
Why Choose Sikalastic 490T?
Its leak-proof and durable properties ensure excellent protection against water and moisture. The resin is both functional and aesthetic, offering a glossy finish that enhances the terrace's overall look while providing long-term protection. Sikalastic 490T is perfect for designing and finishing terraces to align with personal aesthetic preferences, ensuring lasting beauty and functionality.
For optimal results, ensure proper surface preparation and application according to the manufacturer's guidelines. With Sikalastic 490T, your terrace will be both visually appealing and effectively sealed for years to come.
Sicalastic 490T polyurethane resin
Product Available by Order
E: a.kaczmarski@sanier.pl
T: +48 697 691 472
E: d.karlik@sanier.pl
T: +48 883 292 303
