Silicone Heat-resistant Anticorrosive Coating XH7611 belongs to heat-resistant coatings, silicone coating system. Suitable for heat-resistant anti-corrosion protection of high-temperature pipelines, equipment and exhaust devices in petrochemical plants, chemical plants, power plants and steel plants. Parameters on this page: volume solids 48 ± 2%, dry film thickness 25/30/60 µm, theoretical spreading rate 5.3 m²/L.
Parameter source: T&H original technical data sheet (TDS) "Silicone Heat-resistant Anticorrosive Coating XH7611"; values such as spreading rate are converted from TDS parameters and are for selection reference only.
The above content is compiled from the manufacturer's datasheet and this site's parameter tables. For selection, coating systems and lead times, pleaseContact Usfor confirmation.
This page carries the full TDS for this product, translated from the manufacturer's original document. No file download is needed; for an original-language copy, send an enquiry.
| Volume Solids | 48 ± 2% |
|---|---|
| Dry Film Thickness | 25/30/60 µm |
| Theoretical Spreading Rate | 5.3 m2/L |
| VOC | 460g/L |
| Density / Specific Gravity | 1.4kg/L |
| Number of Components | Two-component |
| Flash Point | 25°C |
| Thinner | 0-10% |
| Mixing Ratio | Base : accelerator = 50:1 (by weight), 97:3 (by volume) |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
The product consists of high-silicone-content silicone resin, heat-resistant pigments (fillers), additives, solvents and accelerator. Long-term heat resistance temperature 400°C; maximum heat resistance temperature 600°C. Suitable for heat-resistant anti-corrosion protection of high-temperature pipelines, equipment and exhaust devices in petrochemical plants, chemical plants, power plants and steel plants. Complies with HG/T4565-2013.
| Colour | Limited colours: aluminium grey, grey, black. |
|---|---|
| Gloss | N/A |
| density | 1.4kg/L |
| Volume Solids | 48±2% |
| Volatile Organic Compounds | 460g/L |
| Flash Point | 25°C |
| Mixing ratio | Base : accelerator = 50:1 (by weight), 97:3 (by volume) |
| Typical dry film thickness | 30µm |
|---|---|
| Recommended dry film thickness | 25–60 µm, coating thickness depending on the equipment design temperature and system protection requirements. |
| Induction time (20 °C) | 10~15min |
| Thinner quantity (by volume) | Airless spray* 0–5% | Air spray 5–20% | Roller or brush 0–10% |
| Recommended nozzle size | 0.38~0.43mm | 1.5~2.5mm | None |
| Recommended spray pressure | 15~20MPa | 0.3~0.6MPa | None |
| Application suitability | Applicable | Recommended | Applicable |
*For long-term heat resistance above 400 °C, strictly control the film thickness during application.
| Dry film thickness (µm) | 25 | 30 | 60 |
| Wet film thickness (µm) | 50 | 60 | 120 |
| Theoretical spreading rate (m²/L) | 20 | 16.7 | 5.3 |
| Temperature | Surface Dry | Hard Dry | Pot Life | Recoat interval | |
| Minimum | Maximum* | ||||
| 5°C | 2h | 24h | 4h | 48h | |
| 15°C | 1.5h | 12h | 3h | 24h | / |
| 25°C | 0.5h | 8h | 2h | 24h | |
| 40°C | 15min | 4h | 1.5h | 24h | |
*The maximum recoat interval depends on the exposure environment and the end use of the coating.
All surfaces to be coated shall be clean, dry and free from contaminants. Before coating, all surfaces shall be assessed and prepared in accordance with ISO8504:2000. The product may be applied directly to metal substrates prepared to Sa2½ or St3, or applied over the recommended heat-resistant anti-corrosive primer. When used over a heat-resistant primer, application shall be within the specified recoat interval, and the primer surface shall be dry and free from contaminants. When applied over other aged heat-resistant coatings, the chalking layer, grease and other contaminants shall be removed by suitable methods. For areas with cracking or damage, the substrate shall be prepared to Sa2½ or St3, the primer repaired, and then the product applied.
1. During application, ensure ventilation and exhaust, keep away from ignition sources, and wear protective equipment such as masks and gloves. Maintain suitable ventilation during curing. 2. When mixing, first stir the paint uniformly, add the curing agent in the specified ratio and stir uniformly, then adjust the thinner amount according to application requirements and temperature changes and stir thoroughly. Because the product ratio is large, when the mixing quantity is small, use weighing equipment; volume scales cannot accurately prepare the paint by volume. 3. The coating cannot achieve the desired physical and mechanical properties before heat exposure for secondary curing; therefore, handle with care during transport to avoid coating damage. The film may show slight discolouration or yellowing during long-term exposure to high temperature. 4. Excessive coating thickness or too short a recoat interval will seriously affect drying and curing, heat resistance, recoating performance and handling time. When the design maximum temperature exceeds 500°C, the maximum coating film thickness shall not exceed 50 µm; at a maximum temperature of 400°C, the maximum film thickness is 160 µm; at 450°C, the maximum film thickness is 90 µm. Among this product series, the aluminium grey product has desirable thermal shock resistance. 5. After long-term exposure of this product coating, before recoating, ensure the old film surface is free from contaminants, and abrade the surface before applying subsequent coatings. 6. When applied over inorganic zinc silicate primer, ensure the primer has fully cured (MEK test at least Grade 4). 7. The thick film of this product must be thoroughly dried and cured for at least 7 days before service; otherwise, the incompletely cured coating cannot achieve good heat resistance and may peel or detach during heating. 8. During application and curing, the substrate temperature must be above 5°C and at least 3°C above the dew point, and relative humidity shall not exceed 85%. Avoid application on surfaces above 40°C; otherwise, defects such as blistering and poor levelling may occur. 9. Cutting structures coated with this coating generates smoke and dust; appropriate protection shall be provided. 10. When work is suspended, do not leave paint in paint lines, spray guns or spray equipment. Flush all equipment thoroughly with thinner. If the suspension is prolonged, remix a new batch of paint for application. 11. All equipment shall be cleaned with thinner immediately after use. Periodic flushing of spray equipment during daily work is good practice. Cleaning frequency depends on spray volume, temperature, spray time and interruption time. 12. Surplus paint and empty cans shall be disposed of in accordance with relevant local regulations.
| 20.4 kg per unit | Base 20 kg | Accelerator 0.4 kg |
| 14.5 L per drum | Base 14.1 L | Accelerator 0.4 L |
Keep sealed in a ventilated, cool, dry place away from sources of ignition. Base minimum 12 months; accelerator 6 months.
1. For the coating and its recommended thinners, see the safety sheets and the safety data of the relevant materials. This is a solvent-borne coating; avoid inhaling spray mist and solvent vapours, and avoid exposing skin and eyes and contact with uncured paint as far as possible. 2. All work related to the application and use of this product must comply with the relevant national health, safety and environmental standards and regulations. 3. If welding or flame cutting is required on metal coated with this product, dust and fumes will be generated; use appropriate personal protective equipment and adequate local ventilation. 4. If in doubt about the suitability of this product, consult the company.
The information provided in this product data sheet is based on laboratory test results that we consider accurate, and is provided for application guidance only. All recommendations and advice given by T&H on the use of T&H products, whether in technical documents, special consultation or otherwise, are based on information we consider most reliable. Our products and the information provided are intended for users with the necessary knowledge and industrial experience, and it is for these end users to determine whether the products are suitable for their use. T&H cannot control the quality and condition of the substrate, nor the various factors affecting the use of the product. Therefore, T&H accepts no liability for any loss, injury or damage arising from the use of our products or from reliance on this product data sheet (unless otherwise agreed in writing). Data in this product data sheet may be revised as necessary based on practical experience and continued product development.
Information is subject to the manufacturer's latest version; the manufacturer's latest TDS prevails.
The technical parameters on this page are taken from the product's original manufacturer technical datasheet, the copyright of which belongs to the manufacturer. If a rights holder considers the presentation inappropriate, contact us for verification and handling.
Packaging specifications and batch lead times are subject to actual availability. PleaseContact Uscontact us for project-based calculation.
