MUMBAI, India, May 29 -- Intellectual Property India has published a patent application (202631059446 A) filed by Dr. Sudhir Chandra Sur Institute Of Technology & Sports Complex, Kolkata, West Bengal, on May 10, for 'water-resistant autoclaved aerated concrete (aac) block using hydrophobic nano-coating and a method thereof.'
Inventor(s) include Baibaswata Das; Krishnendu Kundu; Souradeep Roy; Debargha Banerjee; and Dr. Saradindu Panda.
The application for the patent was published on May 29, under issue no. 22/2026.
According to the abstract released by the Intellectual Property India: "The present invention provides a modified Autoclaved Aerated Concrete (AAC) block system featuring a hydrophobic nano-coating for enhanced water resistance and durability. The coating, comprising nano-silica particles combined with silane or siloxane-based agents, is designed to penetrate the internal porous matrix of the AAC block to create a permanent water-repellent barrier. This treatment significantly reduces capillary water absorption and prevents efflorescence while maintaining the block's essential vapor permeability and thermal insulation properties. The disclosed method of application-encompassing spraying, dipping, or brushing-is compatible with conventional manufacturing processes, making the invention highly suitable for construction in humid and high-rainfall environments."
Disclaimer: Curated by HT Syndication.
