Hempadur Mastic 4588W is an epoxy coating. It may also be used as an intermediate coat and/or topcoat in epoxy systems for moderately to severely corrosive atmospheric environments. Hempadur Mastic 4588W is a two-component, high-solids epoxy mastic coating. Parameters on this page: volume solids 80 ± 2%, dry film thickness 200 µm, theoretical spreading rate 4 m²/L. Comparable products of the same brand: Hempel fibre-reinforced heavy-duty epoxy 47510, Hempel multi-purpose epoxy mastic 500 winter grade, Hempel multi-purpose epoxy mastic 500.
Parameter source: HEMPEL manufacturer's Technical Data Sheet (TDS) "Hempadur Mastic 4588W"; 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 | 200 µm |
| Theoretical Spreading Rate | 4 m²/L |
| VOC | 200 g/L (China) |
| Density / Specific Gravity | 1.5 kg/L |
| Number of Components | Two-component |
| Flash Point | 37°C |
| Thinner | HEMPEL's Thinner 08450 |
| Colour / Appearance | Limestone Grey 12170 ** |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
4588W
Hempadur Mastic 4588W is a two-component, high-solids epoxy mastic coating. Its film is tough, with good wetting properties, and can cure at low temperature.
Can be used as a coating system with its own primer. May also be used as an intermediate coat and/or topcoat in epoxy systems for moderately to severely corrosive atmospheric environments, or in applications requiring low VOC and high film thickness. Particularly suitable for application under conditions requiring short recoat intervals at low temperature (down to -10°C) (one coat per day).
- When used as part of the specified coating system, it is approved as a low flame-spread material. For further details, see the Declaration of Conformity at hempel.com.
| Product safety | Flash point 37 °C |
|---|
| Regulations | Value |
| European Union | 200 g/L |
| USA (coatings) | 200 g/L |
| USA (regulatory) | 200 g/L |
| Canada | 200 g/L |
| China | 200 g/L |
| Hong Kong | 200 g/L |
| South Korea | 200 g/L |
Subject to specific legislation; see the explanatory notes on the Hempel website hempel.com or your local Hempel website. VOC values may vary with colour; refer to Section 9 of the Safety Data Sheet. This product complies with the VOC requirements of national mandatory or recommended standards; consult the company representative for details.
Handle with care. Before and during use, observe the safety labels on the packaging and paint containers and comply with all local and national safety regulations. Consult the Hempel Safety Data Sheet and Product Data Sheet for the product at all times.
For professional use only.
| Product code | 4588W |
|---|---|
| Product components | Base 45889 |
Hardener 9588W
| Standard colour* / code | Limestone Grey 12170 ** |
|---|
Light Grey 12170
| Gloss | Semi-gloss |
|---|---|
| Volume solids | 80 ± 2% |
| density | 1.5 kg/L |
| Recommended dry film thickness | 200 µm |
4588W
For further details, refer to the separate Hempel document Surface Preparation Guide.
Base 45889 : Hardener 9588W (3 : 1 by volume)
Stir thoroughly before use.
| Thinner | HEMPEL's Thinner 08450 |
|---|---|
| Cleaning solvent | HEMPEL's Tool Cleaner 99610 |
HEMPEL's Thinner 08450
| Product temperature | 20°C |
| Pot Life | 60 min |
| Pot life (spray) | 60 min |
| Pot life (brush) | 2 h |
| Tools | Maximum thinning volume | Application parameters |
| Airless Spray | 5% | Nozzle pressure: 25 MPa; tip size: 0.43–0.58 mm |
| Brush | 5% | Not applicable. |
If brush or roller application is used, several coats may be required to achieve the specified dry film thickness. Spray parameters are indicative and may be adjusted to suit site conditions. Pressure figures apply to the material at 20 °C. (*For other application methods, consult the company representative.)
| Specification range | Low | High | Recommended |
| Dry Film Thickness | 100 µm | 200 µm | |
| Wet Film Thickness | 126 µm | 251 µm | |
| Theoretical Spreading Rate | 8 m²/L | 4 m²/L | |
Depending on the end use and service area, the product may be specified at film thicknesses other than those indicated. This will alter the spreading rate, drying and curing times and recoat interval. To achieve optimum performance, avoid excessive film thickness.
4588W
| Surface temperature | 20°C |
| Touch Dry | 2½ h |
| Hard Dry | 3½ h |
| Fully cured | 7 days |
Measured at 200 µm dry film thickness under standard conditions; see Hempel's explanatory notes.
Hempel's specifications supersede all guidance shown in the recoat table.
| Product name | -10°C | 0°C | 20°C | |
| Atmospheric, moderate | ||||
|---|---|---|---|---|
| HEMPEL's Epoxy Mastic 4588W | Minimum | 63 h | 28 h | 7 h |
| Maximum | 63 days | 28 days | 7 days | |
| HEMPEL's Polyurethane Mastic Topcoat 55610 | Minimum | 63 h | 28 h | 7 h |
| Maximum | 63 days | 28 days | 7 days | |
| Atmospheric, severe | ||||
| HEMPEL's Epoxy Mastic 4588W | Minimum | 4 days | 40 h | 10 h |
| Maximum | 63 days | 28 days | 7 days | |
| HEMPEL's Polyurethane Mastic Topcoat 55610 | Minimum | 4 days | 40 h | 10 h |
| Maximum | 27 days | 12 days | 72 h | |
For products of the same generic chemical composition, recoat times are for reference only.
For further information, refer to Hempel's specifications.
- To achieve the stated drying times, adequate ventilation during application, drying and curing is essential.
| Ambient temperature | 25°C |
| Binder | 36 months |
| Curing agent | 12 months |
When stored in unopened original containers, shelf life is counted from the date of production. Thereafter, the product quality must be re-inspected. Storage at high temperatures may shorten the shelf life. For advice, consult Hempel.
- Store the product in accordance with the Safety Data Sheet, label and local regulations. Keep containers in a dry, cool, well-ventilated place away from heat and sources of ignition. Keep containers tightly closed. Handle with care.
| Dry Film Thickness | 1 µm | |
| GWP (Global Warming Potential) | 6.4 g CO₂e/m² |
Carbon footprint is based on a 1 µm dry film thickness formed over a surface area of 1 m².
The scope includes raw materials, transport to the Hempel factory, the Hempel production process, and any volatile organic compounds (VOC) emitted during and after use of the product.
4588W
For further information, refer to the Hempel website (https://www.hempel.com/service-and-support/technical-guidelines) or your local Hempel website:
| Number | Document description | Location/Notes |
| 3. | PDS | This document |
datasheet, which is also available for download at www.hempel.com.
This Product Data Sheet (“PDS”) relates to the product supplied (the “Product”), and its content is updated from time to time. Accordingly, the buyer/applicator should refer to the PDS supplied with the relevant batch of product (rather than an earlier version). In addition to the PDS, the buyer/applicator may receive some or all of the specifications, declarations and/or guides shown below, which are also available for download from the “Products” page of the Hempel website (www.hempel.com) (hereinafter the “Supplementary Documents”):
| 1. | Technical declaration | Provides one-off specific advice for the requirements of a specific project |
| 2. | Specifications | Issued for specific projects only |
| 4. | Explanatory notes to the PDS | Available for download at www.hempel.com, containing information related to product test parameters |
| 5. | Application guide | If available, provided at www.hempel.com |
| 6. | General technical guidelines (e.g. application and surface preparation) |
If the information in the PDS and the supplementary documents is inconsistent, the information shall take precedence in the order listed above. In this case, contact the Hempel representative for clarification. In addition, the buyer/applicator must give full consideration to the relevant safety information accompanying each product. Hempel accepts no liability for any defects arising from application not carried out fully in accordance with the recommendations and requirements of the relevant PDS and supplementary documents. The information and terms in this disclaimer apply to this PDS, the supplementary documents and any other relevant documents provided by Hempel for this product. In addition, unless otherwise expressly agreed in writing, supply of the product and all technical support are subject to Hempel's General Conditions of Sale, Delivery and Service.
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.
