When it comes to nanotechnology in building materials, especially in roof coatings like Nanoclad, safety and performance go hand in hand. One common ingredient across various high-performance coatings is nano silica—a material prized for its durability, water resistance, and UV-blocking properties.

But not all nano silica is created equal. The distinction between amorphous and crystalline forms of silica is critical—especially when it comes to health and safety. At Nanoclad, we exclusively use amorphous nano silica, and here’s why that matters.

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The Two Forms of Silica: Crystalline vs. Amorphous

🟣 Crystalline Silica

Crystalline silica, such as quartz, is a well-ordered mineral with a repeating atomic structure. While naturally occurring and widely used in construction materials like concrete and stone, inhaling fine crystalline silica dust over time can lead to serious lung conditions, including silicosis and lung cancer.

  • Hazard level: High when airborne in fine particles
  • Common sources: Sandblasting, mining, cutting concrete or stone

🔵 Amorphous Silica

Amorphous silica, on the other hand, lacks a structured crystalline lattice. It’s non-crystalline, meaning its atoms are randomly arranged. This version of silica—especially in its synthetic, ultra-fine (nano) form—is widely used in food, cosmetics, pharmaceuticals, and high-performance coatings because it’s:

  • Non-toxic
  • Non-carcinogenic
  • Easily processed by the body and environment

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Why Nanoclad Uses Amorphous Nano Silica

At Nanoclad, our coating formulas use engineered amorphous nano silica particles because they provide superior bonding strength, UV resistance, and hydrophobic (water-repelling) properties—without the health risks associated with crystalline forms.

Our nano silica:

  • ✔️ Is non-respirable once cured—meaning it doesn’t become airborne
  • ✔️ Is non-crystalline, so it doesn’t carry the silicosis risk
  • ✔️ Passes international safety standards for environmental and human exposure
  • ✔️ Forms part of a tough, durable matrix that enhances roof longevity

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Safety You Can Trust

Nanoclad is committed to not just high performance, but high safety. Every batch of our product is tested and refined to ensure:

  • No free crystalline silica is present
  • Airborne risk during application is negligible
  • The cured coating is inert and environmentally friendly

In short, Nanoclad’s amorphous nano silica is completely safe for applicators, homeowners, and the environment.

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Final Thoughts

Nanotechnology is revolutionizing the way we protect and preserve roofs—but it must be done responsibly. With Nanoclad, you’re not only getting cutting-edge performance, but peace of mind knowing that our materials are scientifically safe and environmentally sound.