HI-EPOXY 4485 Epoxy MIO Intermediate Coat is an epoxy coating used as an intermediate coat. Applied as an intermediate coating on steel structures in bridges, municipal works, power and other severely corrosive environments, or on chemical and power-station pipelines, equipment and steel structures, or as a sealer over inorganic zinc, with excellent anti-corrosion performance in a coating system. High solids, fast drying, excellent adhesion, durability and corrosion resistance. 178 g/L (grey, summer grade). Surfaces to be coated shall be clean, dry and free from contamination. Parameters on this page: volume solids 80 ± 2%, dry film thickness 80–200 µm, theoretical spreading rate 0.31–0.34 kg/m².
Source: NIPPON INDUSTRIAL original technical data sheet (TDS) "HI-EPOXY 4485 Epoxy MIO Intermediate Coat"; spreading rate and other values 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 | 80 ± 2% |
|---|---|
| Dry Film Thickness | 80-200µm |
| Theoretical Spreading Rate | 0.31-0.34 kg/m2 |
| VOC | 178 g/L (grey, summer grade) |
| Density / Specific Gravity | 1.8 ± 0.1 kg/L (depending on curing agent type) |
| Number of Components | Two-component |
| Thinner | Thinner 0941 |
| Colour / Appearance | Grey |
| Pot Life | 2/4 h (winter grade/summer grade, 25 °C) |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
HI-EPOXY 4485 is a two-component epoxy coating with micaceous iron oxide as the anti-corrosive pigment. Product sol…
High solids, fast drying, with excellent adhesion, durability and corrosion resistance. Excellent high-build low-temperature fast-drying property significantly improves application efficiency.
Applied as an intermediate coating on steel structures in bridges, municipal works, power and other severely corrosive environments, or on chemical and power-station pipelines, equipment and steel structures, or as a sealer over inorganic zinc, with excellent anti-corrosion performance in a coating system.
| Colour | Grey |
|---|
| Solids content (by volume) | 80±2% |
|---|---|
| Density | 1.8 ± 0.1 kg/L (depending on curing agent type) |
| VOC | 178 g/L (grey, 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.
For repair of damaged areas: damaged areas must be blast cleaned to Sa 2½ (ISO 8501-1:2007). Where blasting is not possible locally, mechanical preparation to St3 (ISO 8501-1:2007) is permitted. After surface preparation, apply the primer repair first according to the coating-system sequence.
HI-EPOXY 4485 shall be applied to metal surfaces in accordance with the anti-corrosion system recommended by Nippon. Before application, ensure the surface is dry and free from contamination, and apply within the specified recoat interval (refer to the relevant product datasheet).
Other surfaces: if this coating is to be applied to other surfaces, consult the local Nippon Paint company for further information.
Avoid application when relative humidity exceeds 85%; the steel temperature shall be at least 3 °C above the ambient dew point. At temperatures between 25 °C and 45 °C, use the summer-grade product; between −5 °C and 25 °C, use the winter-grade product; below −5 °C or above 45 °C, stop application.
| Mixing | Base : curing agent = 3:1 (by weight) |
|---|
Mix the base and curing agent thoroughly before use.
| Pot life | 2/4 h (winter grade/summer grade, 25 °C) |
|---|
Once mixed, use within the pot life.
| Theoretical spreading rate | 0.31–0.34 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"; 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 a system with HI-EPOXY 4485 Epoxy MIO Intermediate Coat:
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) |
|---|
Curing agent: 12 months (25 °C). 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.
The in-plant item numbers of HI-EPOXY 4485 Epoxy MIO Intermediate Coat are as follows.Item No.is the most accurate form when ordering;Colour/colour codecorresponds to the actual colour (RAL, GSB are colour chart codes);Packaging SpecificationsFactory complete-set specification format. Colors not listed may be ordered against the colour card.
| Item No. | Colour / colour code | Packaging Specifications |
|---|---|---|
| HI-EPOXY 4485 | — | 28 KG |
This model has a total of1item numbers, all listed on this page; colours outside the table (including special colours and bulk packaging) can be confirmed by phone, delivery dates are advised according to the factory's current production schedule and stock. In the packaging specification, the "+" indicates the complete-set notation for two-component products (base + curing agent), subject to the factory specification; a "—" in the colour column denotes an auxiliary product, or that the item has no colour code in the factory system.
