Special Functional Coatings
Dachin HI 150
Water based nano thermal insulation coating
Product Characteristics
This is a water-based single-component high-temperature-resistant organic ceramic coating that can be directly applied to steel substrates.
Physical Characteristics
Color | White, Gray |
---|---|
Volume Solids | 80% |
Dry Film Thickness | Standard dry film thickness: 500μm |
Coverage | 1.4 m²/L |
Density | 0.60 kg/L |
VOC | < 20 g/L |
Shelf Life | 12 months |
Service Temperature | Long-term: 150℃, Short-term: 180℃ |
Thermal Conductivity | 0.04 W/m·K |
Surface Dry Time | 30 minutes |
Hard Dry Time | 24 hours |
Application Guide
Apply using airless spraying with pump compression ratio ≥33:1, nozzle size ≥3/8, pressure ≥3000 PSI. Apply one coat of 500μm, wait until surface is touch-dry, then apply the second coat. Repeat until desired thickness is achieved. Alternatively, use troweling: apply a single coat no thicker than 2mm, wait until touch-dry, then apply the second coat.
Surface Preparation
Remove all contaminants. Blast to a minimum Sa2 standard, or power tool clean to St3 standard. For small components, perform thorough degreasing and sanding with sandpaper.
Application Conditions
- Surface must be clean and above dew point temperature to prevent condensation.
- Apply at temperatures above 10℃ to ensure proper evaporation and drying of water in the coating.
- Storage and application temperatures should be above 10℃. If relative humidity exceeds 85%, ensure good ventilation to promote water evaporation and drying.
- If applied on heated surfaces, surface temperature must not exceed 80℃ to avoid blistering.
Coating Thickness
Adjust thickness based on application requirements, but this affects coverage, thinner usage, drying time, and recoat intervals. Typically apply 500μm per coat, wait until touch-dry before applying the second coat. Avoid excessive single-coat thickness to prevent blistering and other defects.
Compatibility & Recoating
For outdoor corrosion environments on steel substrates, use a temperature-resistant corrosion-resistant primer first. This coating can be applied over high-temperature primers. It can also be directly applied to non-ferrous substrates. Once fully cured, acrylic or polyurethane topcoats may be applied.
Dilution
Add 1-5% clean water and mix thoroughly before spraying.
Packaging
18 liters per drum