HI-PON 40 epoxy topcoat is an epoxy coating for use as a topcoat. It can be used as a high-performance topcoat, compatible with most Nippon Paint epoxy coating systems, for new construction and maintenance painting of indoor steel structure surfaces under medium to severe corrosive atmospheric environments; it is also suitable for coating indoor steel structure surfaces in chemically corrosive environments and for coating water storage tanks (non-potable water), indoor water tanks and sluice gates. Application properties by brush, roller and airless spray are good. Surface evaluation and cleaning shall refer to ISO 8504. Parameters on this page: volume solids 55 ± 3% (varies slightly with colour), dry film thickness 40-60µm, theoretical spreading rate 0.12-0.13 kg/m².
Parameter source: Nippon Paint Industrial NIPPON INDUSTRIAL original technical data sheet (TDS) "HI-PON 40 Epoxy Topcoat"; spreading rate and other values are converted from TDS parameters, 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 | 55 ± 3% (varies slightly with colour) |
|---|---|
| Dry Film Thickness | 40-60µm |
| Theoretical Spreading Rate | 0.12-0.13 kg/m² |
| VOC | 386 g/L (mixed, white) |
| Density / Specific Gravity | 1.3–1.5 kg/L (depending on colour) |
| Number of Components | Two-component |
| Thinner | Thinner 0941 |
| Colour / Appearance | Various colours (standard industrial colour chart or custom colours) |
| Gloss | High gloss |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
HI-PON 40 epoxy topcoat is a two-component epoxy topcoat with excellent water resistance and chemical
resistance; excellent abrasion resistance; good application properties by brush, roller and airless spray.
Can be used as a high-performance topcoat, compatible with most Nippon Paint epoxy coating systems, for new construction and maintenance painting of indoor steel structure surfaces under medium to severe corrosive atmospheric environments; also suitable for coating indoor steel structure surfaces in chemically corrosive environments and for coating water storage tanks (non-potable water), indoor water tanks and sluice gates.
| Colour | Various colours (standard industrial colour chart or custom colours) |
|---|
| Gloss | High gloss |
|---|---|
| Solids content (by volume) | 55 ± 3% (varies slightly with colour) |
| Density | 1.3–1.5 kg/L (depending on colour) |
| VOC content | 386 g/L (mixed, white) |
The surface to be coated shall be clean, dry and free from contamination. Surface evaluation and cleaning shall refer to ISO 8504. Oil and oil
grease removal shall refer to SSPC-SP1 solvent cleaning.
For repair, damaged areas shall be blast-cleaned to Sa2½ (ISO 8501-1:2007). If blasting is not possible locally, mechanical grinding to St3 (ISO 8501-1:2007) is permitted. After surface preparation, repair according to the coating system sequence.
HI-PON 40 epoxy topcoat shall be applied to the surface to be coated in accordance with the anti-corrosive system recommended by Nippon Paint. Before application, ensure the surface to be coated is dry and free from contamination; application shall 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.
When the ambient temperature remains below 5°C or the relative humidity remains above 85%, the risk of condensation on the substrate increases and continued application is not recommended; the substrate temperature must be at least 3°C above the ambient dew point.
| Mixing | Base:Hardener = 4:1 (by weight) |
|---|
The base and curing agent shall be mixed uniformly before use
| Pot life | 8 h (25°C) |
|---|
Once mixed, use within the pot life.
| Theoretical spreading rate | 0.12-0.13 kg/m² (based on 50µm DFT) |
|---|---|
| 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: recommended for large-area application;
Regardless of the method used, the specified dry film thickness must be achieved.
| Airless Spray | Nozzle tip size: 0.015" – 0.021"; nozzle pressure: 121- kg/cm² |
|---|---|
| Typical film thickness | 40–60 µm dry film thickness; 72–110 µm wet film thickness; drying time |
| Substrate Temperature | 10°C | 25°C | 40°C |
| Touch dry time | 3h | 1h | 0.8h |
| Hard dry time | 32h | 10h | 5h |
| Minimum recoat time | 32h | 10h | 5h |
| 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/intermediate coats are recommended for use with HI-PON 40 epoxy topcoat:
Primer
Intermediate Coat
Coating systems are selected according to different requirements; contact the local Nippon Paint office for specific professional guidance.
Curing agent
| Unit weight | Base packaging size | Base weight | Base packaging size | |
| 18kg | 14.4kg | 18L | 3.6kg | 4L |
| Shelf life (from date of production) | Base: 12 months (25 °C) |
|---|
Curing agent: 12 months (25 °C). Store in accordance with national regulations. Keep the product sealed in a dry, cool, well-ventilated store away from heat and sources of ignition. High temperatures shorten the storage period and may cause the paint to gel in the container. The above is the minimum shelf life; thereafter, testing is required to confirm the product is still usable.
Safety information.
Disclaimer: the above information is based on laboratory tests and application experience. As actual use is subject to many unforeseeable and uncontrollable factors, no application liability is assumed. Read this data sheet carefully and contact Nippon Paint before using the product to confirm that it is the latest version.
We reserve the right to make changes 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.
