Waterborne Epoxy Micaceous Iron Oxide Intermediate Coat XH4740 is a waterborne coating used as an intermediate coat. A waterborne two-component epoxy micaceous iron oxide intermediate coat, used as a primer or intermediate coat in atmospheric environments; used with other coatings, it provides good anticorrosive performance. Parameters on this page: volume solids 55 ± 2%, dry film thickness 60/100/150 µm, theoretical spreading rate 3.7 m²/L.
Parameter source: T&H original technical data sheet (TDS) for Water-borne Epoxy Micaceous Iron Oxide Intermediate Coat XH4740; spreading rate and other values are converted from 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 | 55 ± 2% |
|---|---|
| Dry Film Thickness | 60/100/150 µm |
| Theoretical Spreading Rate | 3.7 m2/L |
| VOC | <50g/L |
| Density / Specific Gravity | 1.60 ± 0.1kg/L |
| Number of Components | Two-component |
| Thinner | 0-10% |
| Mixing Ratio | Base : curing agent = 10:1 (by weight), 7.8:1 (by volume) |
| Colour / Appearance | MIO grey |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
Thinner: deionised water
A waterborne two-component epoxy micaceous iron oxide intermediate coat, used as a primer or intermediate coat in atmospheric environments; used with other coatings, it provides good anticorrosive performance.
| Colour | MIO grey |
|---|---|
| Gloss | Flat |
| density | 1.60±0.1kg/L |
| Volume Solids | 55±2% |
| Volatile Organic Compounds | <50g/L |
| Mixing ratio | Base : curing agent = 10:1 (by weight), 7.8:1 (by volume) |
| Typical dry film thickness | 100µm |
|---|---|
| Recommended dry film thickness | 60–150 µm, depending on system requirements |
| Induction time (20 °C) | No induction required |
| Thinner quantity (by volume) | Airless spray 5–10% | Air spray 15–20% | Roller or brush 0–10% |
| Recommended nozzle size | 0.38~0.53mm | 1.2~3.0mm | None |
| Recommended spray pressure | 15~20MP | 0.3~0.4MPa | None |
| Application suitability | Recommended | Applicable | Suitable for small-area repair |
| Dry film thickness (µm) | 60 | 100 | 150 |
| Wet film thickness (µm) | 109 | 182 | 273 |
| Theoretical spreading rate (m²/L) | 9.2 | 5.5 | 3.7 |
Coating data (typical DFT 100 µm, RH = 55%):
| Temperature | Surface Dry | Hard Dry | Pot Life | Recoat interval | |
| Minimum | Maximum* | ||||
| 20°C | 2h | 12h | 4h | 24h | 6mo. |
| 25°C | 1h | 8h | 3h | 8h | 6mo. |
| 30°C | 1h | 8h | 2h | 8h | 6mo. |
*The maximum recoat interval depends on the exposure environment and the end use of the coating.
1. All surfaces to be coated must be clean, dry and free of contaminants. Before application, all surfaces must be assessed and prepared in accordance with ISO 8504:2000. 2. Abrasive blast clean to Sa 2½, with surface roughness 40–75 µm. Before rust removal, remove all oil and weld spatter and grind welds and sharp edges. Areas of the coating damaged mechanically and showing localised rust must be spot blast cleaned to Sa 2½ or cleaned with power tools to St 3 before local repair with this primer.
1. During application, ensure good ventilation and exhaust, keep away from ignition sources, to facilitate water evaporation. Wear a mask, gloves and other protective equipment; adequate ventilation shall also be maintained during curing. 2. When mixing, first stir the base thoroughly, then add the curing agent in the specified ratio and mix uniformly; adjust the water amount according to application requirements and temperature changes, mix thoroughly, and do not add too much water at once, otherwise settling and caking are likely. Strain through a 120-mesh sieve before use, and stir continuously during use. 3. Adding excessive water causes flocculation and separation, or reduces sag resistance. 4. During application and curing, the substrate temperature shall be at least 3 °C above the dew point, the ambient temperature shall be controlled at 10–35 °C, and the relative humidity shall not exceed 85%. Indoor application is preferable where possible, to ensure coating quality. 5. Cutting structures coated with this coating produces fumes; appropriate protection shall be taken. 6. When work is interrupted, do not leave paint in hoses, spray guns or spray equipment. Flush all equipment thoroughly with clean water. If work is interrupted for too long, remix a fresh batch of paint before resuming. 7. All equipment shall be cleaned with clean water immediately after use. When cleaning, note that the base, if not fully mixed and emulsified with the curing agent, forms floccules when cleaned with water, and may even cause gun blockage. Periodically flushing spray equipment during the daily work is good practice. The frequency of cleaning depends on the quantity sprayed, temperature, spraying time and interruptions. 8. Remaining paint and empty cans shall be disposed of in accordance with relevant local regulations.
| 27.5 kg per unit | Base 25 kg | Curing agent 2.5 kg |
Store sealed in a ventilated, cool, dry place away from ignition sources; the ideal storage temperature is 5–35 °C, protected from freezing at 0 °C or high temperatures. Component A base: minimum 6 months; Component B curing agent: minimum 12 months.
1. For the coating and its recommended thinners, see the safety sheets and the safety data of the relevant materials. 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.
