Protection of Natural Limestone from Water-borne Deterioration
Limestone is a popular choice for fair-faced walls and interior surfaces thanks to its warm tones and natural texture. As a building material, it offers timeless appeal, but also presents challenges. Limestone is soft and highly permeable, making it vulnerable to water absorption, staining, and biological growth such as mould. Over time, these issues can compromise both the appearance and integrity of the stone.
Historically, builders have used water-based acrylic emulsions to coat limestone surfaces. While these coatings offer temporary protection, they do not penetrate the stone. Instead, they form a surface film that can peel, blister, or trap moisture, leading to further deterioration. Caustic treatments have also been used, but they pose safety risks and introduce salts that accelerate surface damage.
Protecting Natural Limestone with Advanced Penetrating Sealers
Tech-Dry’s research and development team has addressed these issues with a breakthrough solution: a silicone-based impregnant developed using nanotechnology. This treatment penetrates deep into the limestone, bonding with the capillaries to create a breathable, water-repellent barrier. The result is a durable surface that resists staining and biological growth while maintaining the stone’s natural appearance.
Unlike surface coatings, Tech-Dry’s impregnant does not alter the colour or texture of limestone. It offers a low-cost solution that supports long-term preservation, ideal for heritage facades, garden walls, and contemporary builds.
In addition to limestone-specific treatments, Tech-Dry offers a full range of penetrating sealers designed to repel both oil and water. These products are suitable for various masonry surfaces and provide invisible protection without the drawbacks of traditional coatings.
For architects, builders, and homeowners seeking to protect natural stone without compromising its aesthetic, Tech-Dry’s advanced sealers deliver performance, simplicity, and peace of mind.