HI-EPOXY 4480 Epoxy High-build Coating belongs to the epoxy coatings category. As an intermediate coat or high-build coating, it is applied to steel structures in wind power, bridges, power and other highly corrosive environments, or to chemical and power station pipelines, equipment and steel structures, or as a sealer over inorganic zinc, providing excellent system corrosion protection. The winter-grade version offers good seasonal temperature adaptability and excellent low-temperature fast drying at high film thickness, markedly improving application efficiency. Surface assessment and cleaning standards refer to ISO 8504. Parameters on this page: volume solids 80 ± 2%, dry film thickness 80–200 µm, theoretical spreading rate 0.31–0.33 kg/m².
Parameter source: NIPPON INDUSTRIAL manufacturer's Technical Data Sheet (TDS) "HI-EPOXY 4480 Epoxy High-build Coating"; values such as spreading rate are converted from TDS parameters and are 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 | 80 ± 2% |
|---|---|
| Dry Film Thickness | 80-200µm |
| Theoretical Spreading Rate | 0.31-0.33 kg/m2 |
| VOC | 156 g/L (white, summer grade) |
| Density / Specific Gravity | 1.75 ± 0.1 kg/L (varies slightly with colour/type) |
| Number of Components | Two-component |
| Thinner | Thinner 0941 |
| Colour / Appearance | White/grey (limited colours) |
| Pot Life | 2/4 h (winter grade/summer grade, 25 °C) |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
HI-EPOXY4480 is a two-component epoxy coating. The product has high solids, fast drying and excellent adhesion, durability and corrosion resistance. The winter-grade version offers good seasonal temperature adaptability and excellent low-temperature fast drying at high film thickness, markedly improving application efficiency.
As an intermediate coat or high-build coating, it is applied to steel structures in wind power, bridges, power and other highly corrosive environments, or to chemical and power station pipelines, equipment and steel structures, or as a sealer over inorganic zinc, providing excellent system corrosion protection.
| Colour | White/grey (limited colours) |
|---|
| Solids content (by volume) | 80±2% |
|---|---|
| Density | 1.75 ± 0.1 kg/L (varies slightly with colour/type) |
| VOC | 156 g/L (white, summer grade) |
Surfaces to be coated shall be clean, dry and free from contamination. Surface assessment and preparation shall follow ISO 8504. Oil
and removal of oil and grease in accordance with the SSPC-SP1 solvent cleaning standard.
Damaged areas must be abrasive blast cleaned to Sa 2½ (ISO 8501-1:2007). Where local areas cannot be blasted, mechanical abrasion to St3 (ISO 8501-1:2007) is permitted. After surface preparation is completed, repair the primer first in accordance with the coating system sequence.
HI-EPOXY4480 Epoxy High-build Coating should be applied to metal surfaces in accordance with the anti-corrosion coating system recommended by Nippon Paint.
Ensure the surface to be coated is dry and free from contamination before application, and application must be carried out within the specified recoat interval (refer to the relevant product Data Sheet).
Other surfaces: if this coating is to be applied to other surfaces, consult the local Nippon Paint company for further information.
Avoid application when the ambient relative humidity exceeds 85%; the steel temperature should be at least 3°C above the ambient dew point. At 25–45°C, use the summer-grade product; at -5–25°C, use the winter-grade product; avoid application when the temperature is below -5°C or above 45°C.
| Mixing | Base : curing agent = 3:1 (by weight) |
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The base and curing agent must be mixed thoroughly before use.
| Pot life | 2/4 h (winter grade/summer grade, 25 °C) |
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Once mixed, use within the pot life.
| Theoretical spreading rate | 0.31–0.33 kg/m² (based on 150 µm dry film) |
|---|---|
| Thinner | Thinner 0941. Thinning must not exceed the limits of local regulations. |
Roller/brush/air spray: for touch-up and small-area application. Airless spray: for large-area application. Regardless of the method, the specified dry film thickness must be achieved.
| Airless Spray | Nozzle size: 0.019–0.025 in; nozzle pressure: 180–200 kg/cm² |
|---|---|
| Typical film thickness | 80–200 µm DFT : 100–250 µm WFT — drying time, winter grade |
| Substrate Temperature | -5°C | 0°C | 5°C | 10°C |
| Touch dry time | 16h | 12h | 7h | 5h |
| Hard dry time | 36h | 24h | 10h | 7h |
| Minimum recoat time | 36h | 24h | 10h | 7h |
| Maximum recoat time* | - | |||
Summer grade
| Substrate Temperature | 25°C | 40°C |
| Touch dry time | 1.5h | 0.5h |
| Hard dry time | 6h | 3h |
| Minimum recoat time | 6h | 3h |
| Maximum recoat time* | - | |
Note: *Before overcoating, the surface shall be free of chalking and contamination. When the film has been exposed outdoors for a long time and the surface is smooth or contaminated, overcoat adhesion may be affected; therefore the film surface shall be abraded, sweep-blasted or high-pressure water-jetted to ensure adequate adhesion.
The data above are for guidance only. Actual recoat and drying times may be shorter or longer depending on film thickness, ventilation, humidity, the underlying coating system, and prior hand or mechanical preparation conditions.
The following primers/topcoats are recommended for use in coating systems with HI-EPOXY 4480 Epoxy High-build Coating:
Primer
Topcoat
Select the coating system according to the specific requirements; refer to the product manual or contact Nippon Paint for professional guidance.
| Unit weight | Base packaging size | Base weight | Curing agent packaging size | |
| 28kg | 21kg | 18L | 7kg | 5L |
| Shelf life (from date of production) | Base: 12 months (25 °C) |
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| Curing agent | 12 months (25 °C) |
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Store in accordance with national regulations. The product shall be kept sealed in a dry, cool and well-ventilated warehouse, away from heat and ignition sources. Excessively high temperatures shorten the storage period and may cause gelling of the paint in the can. The above is the minimum shelf life; beyond this period, testing is required to determine whether the product can still be used.
Safety information.
All information in this product data sheet is based on laboratory tests and practical experience. However, since the product is subject to many unforeseeable and uncontrollable factors in actual use, we guarantee only the quality of the product itself. Read this data sheet carefully and confirm with Nippon Paint that it is the latest version before using the product.
We reserve the right to modify this product data sheet without prior notice.
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.
