With the growing awareness of home decoration, people are no longer satisfied with just basic coatings. As a result, innovative products like waterproof and heat-insulating coatings have emerged to meet modern demands. But what exactly are these coatings? If you're unfamiliar with them, this article will give you a detailed overview.
What is Waterproof and Heat-Insulating Coating?
Waterproof and heat-insulating coatings are advanced materials designed to reflect and radiate heat, providing both insulation and waterproofing. These coatings combine reflection, radiation, and hollow microsphere technology to create an efficient cooling system. By reflecting sunlight away from surfaces, they prevent heat buildup and help maintain a comfortable indoor temperature year-round.
Key Features of Waterproof and Thermal Insulation Coatings
One of the most notable features of these coatings is their strong thermal insulation capability. When applied on roofs and walls, they can reflect up to 90% of solar rays, significantly reducing heat transfer into buildings. This means you can enjoy a cooler environment in summer without relying heavily on air conditioning.
These coatings also offer excellent weather resistance, maintaining performance across a wide temperature range—from -35°C to 150°C. Their high adhesion ensures they stick well to various surfaces, including concrete, metal, and glass.
Another advantage is their waterproof and self-cleaning properties. A 3–6mm thick layer provides long-lasting protection against water damage, while the lotus leaf effect allows water to roll off easily, keeping surfaces clean and fresh.
The application process is simple and efficient. Unlike traditional methods, it requires only 1–2 coats, making it time-saving and cost-effective. It can be applied by spraying, brushing, or rolling, which makes it ideal for both new and existing structures.
In terms of energy efficiency, these coatings can reduce heating costs by 25–35% in winter and cooling costs by 30–56% in summer. A 7.5mm coating provides the same insulation as 30mm of polystyrene, making it highly efficient.
Lastly, these coatings are environmentally friendly, non-toxic, and safe for both humans and the ecosystem. They offer a great balance between performance and affordability, making them a smart choice for any homeowner.
Construction Techniques for Waterproof and Heat-Insulating Coating
Before applying the coating, ensure the surface is clean, dry, and free of dust or oil. Apply a primer first and let it dry. Then, focus on sealing joints, corners, and gutters, using reinforced base materials for extra strength.
Apply the coating in thin layers, usually 2–3 times, allowing each coat to dry before applying the next. For best results, apply in a vertical direction. Mechanical spraying is also an option if available.
If reinforcing materials are used, make sure they are laid flat and fully coated to form a seamless waterproof layer. The thickness should not be less than 1.0mm, and the drying time is typically 2–3 days at room temperature.
Once the waterproof layer is completely dry, add a protective coating. Finally, apply the decorative finish once the base layer is fully cured. Large areas can be painted using a spray method for even coverage.
In summary, waterproof and heat-insulating coatings are a smart, efficient, and eco-friendly solution for modern homes. Whether you're looking to improve your living conditions or reduce energy bills, these coatings are worth considering.
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