Hempel Silicone Acrylic 56940 is an acrylic coating. Used as an atmospheric protective topcoat, particularly suitable for hot pipes, exhaust systems, chimneys and other high-temperature surfaces. Hempel Silicone Acrylic 56940 is a one-component heat-resistant acrylic-modified polysiloxane coating. Parameters on this page: volume solids 54 ± 2%, dry film thickness 25 µm, theoretical spreading rate 22 m²/L. Comparable products of the same brand and type: Hempel Pure Acrylic Road Marking Paint 29680, Hempel Acrylic High Build 46410, Hempel Acrylic High Build 4641C.
Parameter source: HEMPEL original technical data sheet (TDS) "Hempel Silicone Acrylic 56940"; 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 | 54 ± 2% |
|---|---|
| Dry Film Thickness | 25 µm |
| Theoretical Spreading Rate | 22 m²/L |
| VOC | 405 g/L (China) |
| Density / Specific Gravity | 1.4 kg/L |
| Number of Components | One-component |
| Flash Point | 25°C |
| Thinner | HEMPEL's Thinner 08080 |
| Colour / Appearance | Light Grey 11150 * |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
56940
Hempel Silicone Acrylic 56940 is a one-component heat-resistant acrylic-modified polysiloxane coating.
Used as an atmospheric protective topcoat, particularly suitable for hot pipes, exhaust systems, chimneys and other high-temperature surfaces. The product has excellent weather resistance and can be used at temperatures up to 260 °C (500 °F). Some colour shades may fade due to high temperature or prolonged heat exposure. Suitable for new-build and maintenance projects in various industries and application areas requiring coloured finishes.
| Product safety | Flash point 25 °C |
|---|
| Regulations | Value |
| European Union | 405 g/L |
| USA (coatings) | 404 g/L |
| USA (regulatory) | 405 g/L |
| Canada | 405 g/L |
| China | 405 g/L |
| Hong Kong | 405 g/L |
| South Korea | 405 g/L |
Subject to specific legislation; see the explanatory notes on the Hempel website hempel.com or your local Hempel website. 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 | 56940 |
|---|
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| Standard colour / code | Light Grey 11150 * |
|---|
Light Grey 11150
| Gloss | Semi-flat |
|---|---|
| Volume solids | 54 ± 2% |
| density | 1.4 kg/L |
| Recommended dry film thickness | 25 µm |
| Aluminium colour / code | Aluminium 19000 ** |
|---|
Aluminium Grey 19000
Refer to the Hempel Guide for Aluminium-containing Coatings.
| Volume solids | 29 ± 2% |
|---|---|
| density | 1.1 kg/L |
| Recommended dry film thickness | 25 µm |
56940
For further details, refer to the separate Hempel document Surface Preparation Guide.
Stir thoroughly before use.
| Thinner | HEMPEL's Thinner 08080 |
|---|---|
| Cleaning solvent | HEMPEL's Thinner 08080 |
| Tools | Maximum thinning volume | Application parameters |
| Airless Spray | 15% | Nozzle pressure: 12.5 MPa; nozzle size: 0.43 mm |
| Air Spray | 25% | Not applicable. |
| Brush | 15% | 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 | 25 µm | 50 µm | 25 µm |
| Wet Film Thickness | 46 µm | 93 µm | 46 µm |
| Theoretical Spreading Rate | 22 m²/L | 11 m²/L | 22 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.
Previous coat: according to Hempel's specification. Recommended products: HEMPEL Silicone Zinc-Rich 16900, HEMPEL High-Solids Inorganic Zinc-Rich 850, HEMPEL Silicone Aluminium 56914. Subsequent coat: none.
| Surface temperature | 20°C |
| Touch Dry | 15 min |
| Hard Dry | 30 min |
Measured at 25 µm dry film thickness under standard conditions; see Hempel's explanatory notes.
- To achieve the stated drying times, adequate ventilation during application, drying and curing is essential.
56940
| Ambient temperature | 25°C |
|---|---|
| Product | 24 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) | 11.7 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.
| Number | Document description | Location/Notes |
| 3. | PDS | This document |
datasheet, which is also available for download at www.hempel.com.
Calculated based on the standard colours defined in this PDS. Values may vary with colour.
For further information, refer to the Hempel website (https://www.hempel.com/service-and-support/technical-guidelines) or your local Hempel website:
- Application methods - General application guide. 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.
