TDS Technical Data Sheet – High Temperature Resistant Paint for Boilers KF-BO100

Technical Data Sheet · Boiler high-temperature paint · KF-BO100

Product code:KF-BO100 Product series: Silicone heat-resistant coatings Version: 1.0 Published: 2026-10-31

1. Product Description

KF-BO100 boiler-specific heat-resistant paint is a high-temperature protective coating designed for the outer walls of power-station and industrial boilers. It withstands 200-400°C (operating temperature) and the thermal cycling during boiler start-up and shutdown. The coating must simultaneously meet the dual requirements of high-temperature resistance and protecting the boiler outer wall from corrosion (SO₂/SO₃ acid condensation corrosion). Typically black/dark-grey formulations (using graphite, carbon black and other heat-resistant pigments), matching the appearance of the boiler body. Power-plant boilers run 24 hours continuously, coating work is only possible during shutdown maintenance, so reliable performance and easy application are required.

2. Typical Applications

Boiler bodies of thermal power plants / cogeneration plants / captive-power boilers (outer walls of furnace walls / drums / water walls / superheaters), waste-heat / heat-recovery boilers, industrial boilers (process-heat boilers in papermaking / food / chemical industries), and incinerator / waste-to-energy boilers.

3. Technical Parameters

Product typeTwo-component solventborne coating
ColorAny colour to order
GlossSemi-gloss (30-60 GU)
Volume solids50±5%
Recommended DFT30-100 μm/coat
Theoretical spreading rate5-15 m²/L
Mixing ratioA:B=4:1
Pot life4h(20°C)
Surface dry time (23°C)≤2h(23°C)
Hard dry time (23°C)≤24h(23°C)
Full cure7 days (23°C)
Application temperature5-40°C
Relative humidity<85%
Flash point (closed cup)approx. 25°C
Density (mixed)approx. 1.4 kg/L
VOC content<420 g/L
AdhesionGrade 0–1
Packaging Specs20 L drum
Shelf Life12 months(original sealed)
Salt spray resistance≥500h
StandardGB/T 25263 / ISO 12944

4. Application Guide

Surface preparation

Thoroughly clean the substrate surface to remove oil and rust. Abrasive-blast steel to Sa2.5 (ISO 8501-1) with 40-75μm surface profile. Concrete substrate moisture content must be below 6%, grind to remove laitance. For old coatings, remove loose areas and roughen the surface.

Mixing / compounding

According to the mix ratio indicated on the product label, add the hardener (component B) slowly to the base (component A) and mechanically stir for 3-5 minutes until uniform. Let stand to mature for 10-15 minutes before use. Use up within the specified pot life after mixing.

Application method

Recommended air spray (gun orifice 1.5-2.0 mm, pressure 0.4-0.6 MPa) or airless spray (nozzle 0.38-0.53 mm, pressure 15-25 MPa). Small areas may be brushed or rolled. Keep each coat dry film thickness within the specified range.

Curing conditions

Self-cures at ambient temperature (23°C) provided relative humidity meets requirements. Do not apply under low temperature (<5°C) or high humidity (>85%). Conduct performance testing only after full cure.

5. Packaging & Storage

Packaging Specs20 L drum
Storage ConditionsStore at 5–35°C in a cool, dry, ventilated place away from ignition and heat sources; keep container sealed.
Shelf Life12 months(original sealed)
TransportTransport as non-hazardous goods. In summer, ship in early morning or evening; avoid sun exposure.

6. Health & Safety Notes

⚠️ Important safety notice

Read and understand the product's MSDS (Material Safety Data Sheet) carefully before using this product.

  • Proper personal protective equipment (gloves, goggles, protective suit) must be worn during application
  • Ensure the work area is well ventilated
  • Keep away from fire and heat sources
  • Avoid inhaling vapours and mist
  • Avoid contact with skin and eyes
  • If you feel unwell, stop work immediately and seek medical advice
📋 View the full MSDS safety data sheet →

Disclaimer

The data in this TDS are typical values and do not constitute product specifications. Actual product performance may vary depending on application conditions, substrate condition and environmental factors. Users are advised to conduct small-scale sample tests before bulk use to confirm product suitability.

Kexin New Materials continually improves its products and reserves the right to modify technical parameters without prior notice. For the latest revision, visit www.psste.com/boiler-high-temperature-paint-tds/.

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