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4401 High-Temperature-Resistant Silicone Coating
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4401 High-Temperature-Resistant Silicone Coating
Product Description
Product Introduction
4401 is a two-component, high-temperature-resistant silicone coating that, upon curing in ambient air, forms a hard film capable of withstanding temperatures up to 600°C.
Application areas
It can be used as a long-lasting protective coating for hot pipelines, exhaust pipes, chimneys, and other high-temperature surfaces.
Product Information
Appearance: Silver
Mixing ratio: 22.5:1 (by volume) or 32:1 (by weight)
Complete curing: 7 days
Mixed-use period: 6 hours (20°C)
Solid content by volume: 40±2%
Recommended dry film thickness: 20 μm (corresponding to a wet film thickness of 50 μm)
Theoretical coverage (20 µm): 20 m²/L or 15.4 m²/kg
Specific gravity: 1.3 kg/L
Flash point: above 32°C
VOC: 448 g/L
Construction conditions
Remove oil, grease, and other contaminants by cleaning with an appropriate detergent.
Abrasive blasting to a minimum of Sa 2½.
During paint application, the substrate temperature must be at least 3°C above the dew point, and the ambient relative humidity must be below 85%.
It is recommended to apply the product at temperatures above 5°C, and the application surface must be clean and dry.
During construction and the drying process, vigorous ventilation is recommended.
At higher temperatures, a suitable amount of thinner may be added to prevent dry spraying.
During the curing of the paint film, it is recommended to maintain relative humidity within the range of 50–100%.
Painting method
Application Methods: Airless Spraying / Air-Assisted Spraying / Brushing / Roller Coating
Thinner 85# High-Temperature-Resistant Special Thinner
Dilution ratio: 0–5% (by weight of the paint; the actual amount added can be adjusted according to on-site application methods)
Nozzle diameter: 0.38–0.48 mm
Ejection pressure: 10–15 MPa
Drying time |
||||
Temperature |
0℃ |
10℃ |
20℃ |
30 °C |
Surface dry |
6 hours |
4 hours |
2 hours |
1 hour |
Clear the Heavenly Stems |
10 hours |
8 hours |
6 hours |
3 hours |
Recoating interval |
|||||
Subsequent coating |
Temperature |
5℃ |
10 °C |
20 °C |
30 °C |
4401 High-Temperature Resistant Paint |
Shortest |
48 hours |
36 hours |
24 hours |
12 hours |
Longest |
Unlimited |
Unlimited |
Unlimited |
Unlimited |
|
Paint film thickness/dilution
Non‑recommended dry film thicknesses may be used depending on the application and area; this will alter the coverage rate and affect drying time and recoat intervals. The typical dry film thickness per coat is 15–30 microns.
Packaging Specifications
18 liters or 23.4 kilograms
Shelf life
Base material: 12 months, Curing agent: 36 months
Safety measures
See the company’s Material Safety Data Sheet (MSDS).
Disclaimer: The information and data provided herein are based on our testing and practical experience, and are intended as a guide for application. For applications carried out under conditions beyond our knowledge or control, we warrant only the quality of the paint itself; we assume no responsibility for any other issues. We reserve the right to revise this instruction manual in light of ongoing product improvements.
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