High-Temperature Thermal Insulation Coating (2000℃)
VeryPaint® SP-9812H is a two-component, room-temperature curing inorganic high-temperature thermal insulation coating designed to withstand temperatures up to 2000℃, with an extremely low thermal conductivity of 0.033 W/m·K.
The coating is formulated from specially synthesized inorganic silicate solution, aluminum silicate fibers, heat-reflective materials, and selected hollow glass microspheres. It is a non-toxic, environmentally safe system that provides outstanding thermal insulation performance, with insulation efficiency reaching approximately 90% under appropriate thickness. It can also provide effective cold insulation by reducing heat transfer from external heat sources to low-temperature objects.
- AVAILABILITY: IN Stock
- PRICE: $19.00
$22.00
Product Features
- Extreme High-Temperature Resistance: Withstands temperatures up to 2000℃, making it suitable for the most demanding high-temperature applications.
- Excellent Thermal Insulation Performance: Features an extremely low thermal conductivity of 0.033 W/m·K, providing insulation efficiency of approximately 90% under appropriate thickness.
- Advanced Composite Insulation System: Mimics the insulation principle of a thermos flask, combining static air barrier, inorganic matrix, and reflective shielding for near-vacuum insulation levels.
- Dual-Purpose Functionality: Provides both heat insulation and cold insulation, reducing heat transfer in both directions.
- High Mechanical Strength: Offers compressive strength up to 80 MPa, adhesion strength of 8 MPa, and hardness of 7H, ensuring durability in demanding environments.
- Environmentally Safe: Formulated as a non-toxic, inorganic coating system that is safe for industrial use.
Working Mechanism
The coating structure mimics the insulation principle of a thermos flask:
- Hollow ceramic microspheres contain trapped air, preventing thermal convection even under high temperatures
- Dense microsphere packing creates a 3D air barrier layer
- Inorganic film-forming materials provide structural support with low thermal conductivity
- Heat-reflective materials further reduce heat transfer
Together, these form a composite insulation system combining static air barrier + inorganic matrix + reflective shielding, bringing thermal conductivity close to vacuum insulation levels.
Typical Applications
- High-temperature kilns and furnace chambers
- High-temperature molds
- Pipelines for high-temperature fluids
- Electric furnaces and induction furnaces
- Rotary kilns and other thermal equipment
Basic Technical Data
| Item | Specification | Test/Standard |
|---|---|---|
| Appearance | White paste | Visual |
| System | Two-component | - |
| Density | 2.2 g/cm³ | Measured |
| Application performance | Applicable | - |
Coating Performance
| Item | Standard | Performance |
|---|---|---|
| Appearance | Visual | Slightly granular |
| Color | Visual | White |
| Dry density | JGJ/T 70-2009 | 2.0 g/cm³ |
| Drying time | GB/T 1728-1979 | Touch dry ≤2h, Hard dry ≤24h |
| Hardness | GB/T 6739-2006 | 7H |
| Compressive strength | GB/T 5072-2008 | ≤80 MPa |
| Adhesion strength | GB/T 5210-2006 | 8 MPa |
| Tensile strength (after heat) | GB/T 5210-2006 | 8 MPa |
| Thermal conductivity | GB/T 10297-2015 | 0.033 W/m·K |
| High-temperature resistance | QB/C001-2005 | Up to 2000℃ |
Application Notes
This is a two-component, room-temperature curing system. Mix powder:liquid = 1:1 (by weight), stir evenly, then allow to mature for 5 minutes before application. Seal unused material tightly. Clean tools during long intervals to prevent hardening.
Recommended Film Thickness
Dry film thickness: Defined by application. Apply to designed thickness based on actual operating conditions.
Theoretical coverage: 0.6 m²/kg/mm (calculated based on dry film thickness).
Surface Preparation
Ensure the substrate is clean, dry, and free of dust, oil, rust, and degraded layers. Recommended surface roughness: 25-40 μm.
- Steel surfaces: hand grinding to St3 or sandblasting to Sa2.5
- Better surface preparation improves coating performance significantly
Application Methods
- Spray coating: Air spray using large-nozzle spray gun or textured coating gun
- Brush coating: Cross-brushing method recommended
Thinner / Cleaning Agent
Deionized water
Drying & Curing Time
Touch dry: ≤2 hours
Hard dry: ≤24 hours
Note: Drying time depends on film thickness and environmental conditions (GB/T 1728-1989).
Packaging
10 kg/bucket (iron drum packaging)
Storage & Shelf Life
Store in a cool, dry, well-ventilated area. Keep away from heat and ignition sources. Container must remain tightly sealed. Storage temperature: 0-40°C. Shelf life: 12 months.
Opened containers must be tightly resealed. Products beyond shelf life may be used only after inspection approval.
Health & Safety
- Use in well-ventilated areas
- Avoid inhalation of spray mist and skin contact
- In case of skin contact, wash immediately with soap and water
- In case of eye contact, rinse thoroughly and seek medical attention
Precautions
- For professional use only
- Operators must be trained and properly equipped
- Personal protective equipment is required
- Any process modification must be approved by technical personnel
Disclaimer
Information is based on laboratory and practical experience. Product performance may vary depending on application conditions. We guarantee product quality only. Specifications may be updated without prior notice. Users should consult the manufacturer for specific application guidance.
Important Notice
This product information is based on our best knowledge from experimental results and is provided for reference only. We recommend customers conduct their own trials based on their specific conditions to ensure the best performance.