RELEST Wind HS Topcoat - I306-xxxx High-Solids Topcoat is a topcoat. Specifically designed for wind turbine blades made of glass-reinforced epoxy (GRE) composite. Product code: base (RLA20X, I306-X1XX) / curing agent (RLA612, I385-1306). RELEST Wind HS Topcoat is suitable for outdoor use and has excellent rain erosion resistance. Although low-molecular-weight reactive additives become part of the film when cured under normal environmental conditions, EPA Method 24 analysis shows that they also affect the VOC value. Parameters on this page: volume solids 55% ± 2% (depending on colour), theoretical spreading rate 10 m²/L.
Parameter source: AKZONOBEL original technical data sheet (TDS) for RELEST Wind HS Topcoat - I306-xxxx High-Solids Topcoat; spreading rate and other values are converted from TDS parameters and provided 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 | 55% ± 2% (depending on colour) |
|---|---|
| Dry Film Thickness | — |
| Theoretical Spreading Rate | 10 m²/L |
| VOC | Base VOC 347 g/kg, EU Solvent Emissions Directive (Council Directive 2010/75… |
| Density / Specific Gravity | 1.3 kg/L (10.8 lb/gal) |
| Number of Components | Two-component |
| Thinner | RELEST Thinner PUR 144 or Internatio… |
| Mixing Ratio | Use Component B Relest Curing Agent PUR1306 (I385-1306… |
| Colour / Appearance | Available in various colours, WIND HS TOPCOAT |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
Product code: base (RLA20X, I306-X1XX) / curing agent (RLA612, I385-1306). RELEST Wind HS Topcoat is suitable for outdoor use and has excellent rain erosion resistance.
Specifically designed for wind turbine blades of glass-reinforced epoxy (GRE) composite. Suitable for new construction and maintenance in the wind power industry.
RELEST
| Colour | Available in various colours, WIND HS TOPCOAT |
|---|---|
| Gloss | Matt |
| Volume Solids | 55% ± 2% (depending on colour) |
| Typical thickness | Two coats, 50-60 µm (2-2.4 mil) dry film thickness each, equivalent to 90-110 µm (3.5-4.3 mil) wet film thickness each. Normally applied in two coats by roller. |
| Theoretical Spreading Rate | At 55 µm dry film thickness and the stated volume solids, 10 m²/L, approximately 130 g/m². |
| Practical Spreading Rate | Allowing for a suitable loss factor |
| Density | Mixture density approx. 1.3 g/cm³ (varies with colour) |
| Application Methods | Suitable for airless spray, air-assisted airless spray, roller; drying time; recommended topcoat recoating interval |
35°C / 85% RH
| Temperature | Surface Dry | Hard Dry | Minimum | Maximum |
| 18°C (64°F) | 3 h | 7.5 h | 4.5 h | 24 h |
| 23°C (73°F) | 2 h | 5 h | 3.5 h | 24 h |
| 35°C (95°F) | 20 min | 1 h | 2 h | 24 h |
| • Touch dry and hard dry correspond to TG1 and TG7 respectively, in accordance with | ISO 9117-5 | |||
| • The above data are tested under the following conditions: | ||||
| 18°C / 30% RH | 23°C / 65% RH | |||
| Flash point (typical) | Component A 30 °C (86 °F); | Component B 56 °C (133 °F) | ||
| Product weight | 1.3 kg/L (10.8 lb/gal) |
|---|---|
| Volatile Organic Compounds | Base VOC 347 g/kg, EU Solvent Emissions Directive (Council Directive 2010/75/EU); curing agent VOC 190 g/kg, EU Solvent Emissions Directive (Council Directive 2010/75/EU); mixture VOC 320 g/kg, EU Solvent Emissions Directive (Council Directive 2010/75/EU); coating hazards GB 30981.2-S-Pb≤1000-NC; complies with GB 30981.2-2025. For further details, see the section on Product Characteristics. |
Surface cleaning: all surfaces to be coated shall be clean, dry and free from contamination. Oil and dirt shall be removed before painting; use vacuum or clean, dry compressed air, and wipe with a clean, oil-free, dry cloth to remove all dust thoroughly.
| Abrading preparation: | Before sanding the substrate, gelcoat and putty, thoroughly clean the surface; sand in a well-ventilated area with a continuous flow of fresh air. Insufficient sanding may result in poor adhesion of RELEST Wind HS Topcoat to the surface. However, over-sanding or using excessively coarse abrasive paper will expose pores or leave too-deep sanding scratches that cannot be filled by RELEST Wind HS Topcoat. Use 120-180 grit abrasive paper on primer and filler surfaces. Before applying RELEST Wind HS Topcoat, remove any residual contaminants (such as dust or coating/filler particles) by a suitable method. |
|---|
| Mixing | Once mixed, the product shall be used within the specified pot life. |
|---|
(1) Stir the base (Component A) with a power stirrer;
(2) Stir the curing agent (Component B) with a power stirrer;
(3) Mix all of the curing agent (Component B) with the base (Component A) and mix thoroughly with a power stirrer.
Insufficient manual stirring may cause film defects. Ensure the equipment is clean during application and no air is entrapped during stirring. The mixture shall be transferred to another container before use. The ideal application viscosity depends on the local environment and shall be adjusted accordingly.
| Mixing ratio | Use Component B Relest Curing Agent PUR1306 (I385-1306): 3.5 parts : 1 part by volume; 4.5 parts : 1 part by weight |
|---|
| Pot life | 18°C (64°F) | 23°C (73°F) | 35°C (95°F) |
| 60 min | 45 min | 15 min |
• The above data are tested under the following conditions: 18 °C / 30% RH, 23 °C / 65% RH, 35 °C / 85% RH
| Suitable for airless spray | Recommended nozzle tip 0.28-0.38 mm (11-15 thou); total paint pressure at the nozzle not less than 214 kg/cm² (3,043 lb/in²) |
|---|---|
| Roller application | Recommended |
| Thinner | RELEST Thinner PUR 144 or International GTA056 |
| Cleaner | RELEST Thinner PUR 144 or International GTA056 |
| Interruption of work | Clean all equipment thoroughly with Relest Thinner PUR144 or International GTA056. Once mixed, do not reseal. After a long stoppage, use freshly mixed paint when restarting work. |
| Cleaning | Clean all equipment immediately after use with Relest Thinner PUR144 or International GTA056. |
Dispose of all surplus material or empty containers in accordance with local applicable laws/regulations.
For roller application, multiple coats may be required to achieve the specified dry film thickness.
Gloss and surface evenness depend on the application method. Avoid mixing different application methods as far as possible.
The product must only be thinned with the recommended thinner. Using other alternative thinners, particularly alcohol-containing thinners, will seriously affect the curing mechanism of the coating.
When applying RELEST Wind HS Topcoat in confined spaces, ensure adequate ventilation.
Condensation on the surface during or after application will cause loss of gloss and a poor-quality film.
The temperature of the surface to be coated must be at least 3 °C (5 °F) above the dew point.
RELEST Wind HS Topcoat can be applied by spray; for further information, consult the local representative.
Note: VOC values are typical and for guidance only. They may vary with colour and general production tolerances.
Although the low-molecular-weight reactive additive becomes part of the film when cured under normal ambient conditions, analysis by EPA Method 24 shows that it also affects the VOC value.
For suitable primers/intermediate coats, consult the local International Paint representative.
| For further information on the industry standards, terms and abbreviations used in this datasheet, see www.international-pc.com | In the following documents on the website: • Definitions and abbreviations • Surface preparation • Coating application • Theoretical and practical spreading rate. These sections are also available as separate publications on request. |
|---|
This product must be applied at the production site by professional applicators in accordance with the recommendations in this manual, the Material Safety Data Sheet and the instructions on the container label. Do not use this product without first reviewing the Material Safety Data Sheet (MSDS) that International Paint provides for its customers.
All work related to the application and use of this product must be carried out in accordance with the relevant national health, safety and environmental standards and regulations.
If welding or flame cutting is required on metal coated with this product, dust and fumes will be generated; use appropriate personal protective equipment and adequate local ventilation.
If in doubt about the suitability of this product, consult your local International Paint representative for further advice.
Warning: contains isocyanates. Wear an air-fed helmet when spraying.
| Packaging Specifications | Shipping weight |
|---|
| Shelf life | At least 18 months in the original unopened containers at 25 °C (77 °F), after which inspection is required. Store in a dry, cool place away from heat sources and ignition sources. Protect from frost. |
|---|
The information given in this product data sheet is not exhaustive. Anyone who uses, for any purpose, any product other than those specifically recommended in this data sheet without first obtaining our written confirmation does so at their own risk as regards the suitability of the product for the intended purpose. Although to the best of our knowledge all advice or statements given about the product (whether in this data sheet or otherwise) are correct, we cannot control the quality or condition of the substrate, nor the many factors affecting the use and application of the product. Accordingly, unless we specifically agree otherwise in writing, we accept no liability, to the maximum extent permitted by law, for any product performance problem arising, or for any loss or damage caused by use of the product. We hereby disclaim any warranty or representation, express or implied, arising by operation of law or otherwise, including but not limited to any implied warranty of merchantability or fitness for a particular purpose. All products supplied and all technical guidance provided are subject to our standard terms and conditions of sale. You should obtain a copy of this document and read it carefully. The information contained in this product data sheet may be amended at any time in the light of experience and of our product development policy. Before using the product, it is the customer's responsibility to check with the local representative that the data sheet in their possession is the latest version.
This product data sheet is available on www.international-marine.com or www.international-pc.com and should be identical to this copy. If the version on the website differs from this one, the version on the website shall prevail.
© 2026/5/27 AkzoNobel. All rights reserved.
www.international-pc.com
Data is subject to the manufacturer's latest version; in all cases the manufacturer's latest TDS prevails.
Packaging specifications and batch lead times are subject to actual availability. PleaseContact Uscontact us for project-based calculation.
