Epoxy Coal Tar Anticorrosive Coating XH4012 is an epoxy coating. A two-component polyamide-cured coal tar epoxy coating; the film is abrasion-resistant and has good resistance to seawater, mineral oil and similar. Parameters on this page: volume solids 60 ± 3%, DFT 80/125/150 µm, theoretical spreading rate 3.8 m2/L.
Parameter source: T&H manufacturer's Technical Data Sheet (TDS) "Epoxy Coal-tar Anti-corrosive Coating XH4012"; spreading rate and other values are converted from the TDS parameters and provided for product 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 | 60 ± 3% |
|---|---|
| Dry Film Thickness | 80/125/150 µm |
| Theoretical Spreading Rate | 3.8 m2/L |
| VOC | 380g/L |
| Density / Specific Gravity | 1.3kg/L |
| Number of Components | Two-component |
| Flash Point | 25°C |
| Thinner | 5-15% |
| Mixing Ratio | Base : curing agent = 2.5:1 (by weight), 65:35 (by volume) |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
A two-component polyamide-cured coal tar epoxy coating; the film is abrasion-resistant and has good resistance to seawater, mineral oil and similar. It can be used as a primer and as a long-life protective coating for steel and concrete in severely corrosive environments.
| Colour | Black-brown |
|---|---|
| Gloss | N/A |
| density | 1.3kg/L |
| Volume Solids | 60±3% |
| Volatile Organic Compounds | 380g/L |
| Flash Point | 25°C |
| Mixing ratio | Base : curing agent = 2.5:1 (by weight), 65:35 (by volume) |
| Typical dry film thickness | 125µm |
|---|---|
| Recommended dry film thickness | 80–150 µm, depending on system requirements |
| Induction time (20 °C) | 10~15min |
| Thinner quantity (by volume) | Airless spray 0–15% | Air spray 5–20% | Roller or brush 5–15% |
| Recommended nozzle size | 0.43~0.64mm | 1.5~2.5mm | / |
| Recommended spray pressure | 15~20MPa | 0.3~0.6MPa | / |
| Application suitability | Recommended | Applicable | For small-area repair only |
*Use a slow thinner in hot weather
| Dry film thickness (µm) | 80 | 125 | 150 |
| Wet film thickness (µm) | 133 | 208 | 250 |
| Theoretical spreading rate (m²/L) | 7.2 | 4.6 | 3.8 |
| Temperature | Surface Dry | Hard Dry | Pot Life | Recoat interval | |
| Minimum | Maximum* | ||||
| 5°C | 12h | 24h | 4h | 24h | / |
| 15°C | 8h | 16h | 3h | 16h | / |
| 25°C | 6h | 8h | 2h | 8h | / |
| 40°C | 4h | 6h | 1h | 8h | / |
*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. Prior to coating, all surfaces shall be assessed and prepared in accordance with ISO 8504:2000. Abrasive blast clean to Sa2½, surface roughness 40–75 µm. Before derusting, oil, grease and welding spatter shall be completely removed from the surface, and welds and sharp edges shall be ground. Where a surface coated with this coating has suffered mechanical damage and local rusting, local abrasive blast cleaning to Sa2½ or power tool cleaning to St3 is required before local repair. For concrete protection, the concrete shall meet curing requirements, and its moisture content and surface condition shall comply with relevant regulations. Preferably, abrasive blasting is used to remove the laitance layer and loose material to form a firm, uniform surface; mechanical treatment or acid washing may also be used. According to the requirements of the relevant coating, seal the surface with a suitable sealer.
1. During application, ensure ventilation and air exhaust, keep away from ignition sources, and wear protective equipment such as masks and gloves; maintain adequate ventilation during curing as well. 2. Before mixing Components A and B, stir the base uniformly with a power tool, then add the curing agent and mix uniformly; adjust the amount of thinner according to application needs and temperature changes, stir thoroughly, and allow an induction time of 10–15 min before application. 3. This product can be used as a primer for galvanized steel or stainless steel; better adhesion can be obtained by roughening and grinding or light blasting of these substrate surfaces. 4. When this product is used as a protective primer for concrete, it is usually used together with a concrete-specific sealing primer to seal the concrete; ensure the sealing layer is hard dry before applying subsequent coats. 5. If this coating is to be applied over an old zinc-rich primer film, chalking or zinc salts on the zinc-rich coating must be thoroughly removed. 6. The recommended thickness of one coat of this product shall not exceed 200 µm. If chalking occurs after long-term exposure of this product's coating, high-pressure water cleaning or surface grinding shall be carried out before applying subsequent coatings. 7. When used as an internal anti-corrosion layer for tanks, concrete pools, etc., it is usually used together with glass fibre cloth to form a FRP lining; in this case, the application procedure in standard SY0326 may be followed. In particular, the cloth application process shall be carried out before the film is touch dry, otherwise the adhesion of the glass fibre cloth will be affected; after cloth application is completed, dry for more than 12 h before applying the next coat, and repeat the above process to reduce the residual solvent content in the film and improve the strength of the lining. 8. During application and curing, the substrate temperature must be above 5 °C and at least 3 °C above the dew point, and the relative humidity shall not exceed 85%. Temperature and relative humidity shall be measured at the substrate near the work point. 9. Cutting structures coated with this coating generates smoke and dust; appropriate protection shall be provided. 10. When work is suspended, do not leave coating in paint lines, spray guns or spray equipment. Thoroughly flush all equipment with thinner. If the suspension is too long, it is recommended to mix a new batch of paint for application. 11. All equipment shall be cleaned with thinner immediately after use. Periodically flushing spray equipment during daily work is a good practice. Cleaning frequency depends on spray volume, temperature, spraying time, including interruption time and other factors. 12. Residual paint and empty cans shall be disposed of in accordance with relevant regional regulations.
| 21 kg per unit | Base 15 kg | Curing agent 6 kg (packed in two drums) | |
| 16 L per unit | Base 10 L | Curing agent 6 L | (packed in two drums) |
Keep sealed in a ventilated, cool, dry place away from sources of ignition. Minimum 12 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.
