Potable Water Tank Coating is a specialized protective coating used for the interior walls of drinking water storage containers (such as water tanks, reservoirs, and water towers). It must comply with stringent hygiene and safety standards to ensure no contamination of water quality.
Key Features and Requirements
Non-Toxic and Harmless
Must pass potable water safety certifications (e.g., China’s Hygienic Safety Evaluation Standard for Equipment and Protective Materials in Drinking Water Transmission and Distribution Systems, NSF/ANSI 61 (USA), EN 14944 (EU), etc.
Free of heavy metals (lead, chromium, etc.), formaldehyde, and high-VOC hazardous substances.
Excellent Water Resistance
Long-term immersion without peeling, blistering, or microbial growth (e.g., algae, bacteria).
Anti-Corrosion and Rust Prevention
Metal tanks (e.g., steel, galvanized steel) require rust protection, while concrete tanks need anti-leakage properties.
Strong Adhesion
Firmly adheres to substrates such as metal, concrete, or fiberglass.
