RELEST Wind Putty Porefiller - I372-5615 belongs to polyurethane coatings and is used as an auxiliary. Product codes: base (RLA401, I372-5615), curing agent (RLA602, I385-0013). A hard, solvent-free polyurethane pore filler. Although low-molecular-weight reactive additives become part of the film under normal ambient curing, EPA Method 24 testing shows that they also affect the VOC value. Parameters on this page: volume solids 99.5%.
Source: AkzoNobel original technical data sheet (TDS) "RELEST Wind Putty Porefiller - I372-5615"; 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 | 99.5% |
|---|---|
| Dry Film Thickness | — |
| Theoretical Spreading Rate | — |
| VOC | VOC (base) 3.29 g/kg, EU Solvent Emissions Directive (Council Directive 2… |
| Density / Specific Gravity | 1.33 g/cm³ (after mixing) |
| Number of Components | Two-component |
| Thinner | Do not thin |
| Mixing Ratio | Use Part B RELEST Curing Agent PUR 13 (I385-0013):10… |
| Colour / Appearance | Blue WIND PUTTY |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
Product code: base (RLA401, I372-5615) / curing agent (RLA602, I385-0013). A hard, solvent-free polyurethane pore filler. The product has excellent UV resistance and weatherability, very fast drying and long working life.
As a small-pore filler.
RELEST Wind Putty Porefiller has excellent adhesion to EP laminates, Relest Wind Putty, Relest Wind Gelcoat and Relest Wind Topcoat.
RELEST
| Colour | Blue WIND PUTTY |
|---|---|
| Gloss | Glossy POREFILLER |
| Volume Solids | 99.5% |
| Typical thickness | N/A |
| Practical Spreading Rate | Allowing for a suitable loss factor |
| Density | 1.33 g/cm³ (after mixing) |
| Application Methods | Roller, brush, metal trowel. Drying time: recommended topcoat recoat interval |
| Temperature | Surface Dry | Hard Dry | Minimum | Maximum |
| 20°C (68°F) | 45 min | 180 min | 90 min | 8 h |
| 23°C (73°F) | 20 min | 140 min | 60 min | 8 h |
| 35°C (95°F) | 10 min | 40 min | 8 h | |
| • Touch dry and hard dry correspond to TG1 and TG7 respectively, in accordance with | ISO 9117-5 |
• Drying times depend on the substrate temperature and ventilation.
• The above data are measured at
| 20 °C / 30% RH; 23 °C / 65% RH | measured at 35 °C / 85% relative humidity. • If the maximum overcoating interval is exceeded, the surface shall be thoroughly abraded with 180–240 grit sandpaper before further overcoating |
|---|
| Flash point (typical) | Component A 100 °C (212 °F); Component B >99 °C (210 °F) |
|---|---|
| Product weight | 1.33 kg/L (11.1 lb/gal) |
| Volatile Organic Compounds | VOC (base) 3.29 g/kg, EU Solvent Emissions Directive (Council Directive 2010/75/EU). VOC (curing agent) 0 g/kg, EU Solvent Emissions Directive (Council Directive 2010/75/EU). VOC (mixture) 2.4 g/kg, EU Solvent Emissions Directive (Council Directive 2010/75/EU). Coating hazard class GB 30981.2-W-Pb≤1000-NC, complying with GB 30981.2-2025. For more details, see the 'Product Characteristics' section. |
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.
Sanding treatment: work in a well-ventilated area during sanding, maintaining a continuous flow of fresh air.
Gelcoat and primer: it is recommended to sand gelcoat and primer surfaces with 120–180 grit sandpaper. Before applying RELEST Wind Putty Porefiller, 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) Mix the curing agent (component B) and base (component A), stirring thoroughly with a low-speed stirrer to mix evenly. Ensure the curing agent container is emptied completely.
(2) Transfer the mixture to another clean container, ensuring no residue remains in the first mixing container, and stir again.
Take care to avoid introducing air/foam into the mixture. Small samples may be mixed manually.
| Mixing ratio | Using Part B RELEST Curing Agent PUR 13 (I385-0013): 100 parts : 46 parts by volume, 100 parts : 38 parts by weight |
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| Pot life | 20°C (68°F) | 23°C (73°F) | 35°C (95°F) |
| 20 min | 15 min | 8 min |
• The above data were measured at 20 °C / 30% RH, 23 °C / 65% RH and 35 °C / 85% RH
| Thinner | Do not thin |
|---|---|
| Cleaner | RELEST Thinner PUR 132 |
| Interruption of work | Use immediately after mixing; if the pot life is exceeded, discard and mix a fresh batch. |
| Cleaning | Clean all equipment immediately after use with RELEST Thinner PUR 132. |
All surplus paint and empty containers must be disposed of in accordance with the relevant local laws/regulations.
After mixing, RELEST Wind Putty Porefiller releases heat, which affects the application period. To reduce waste, mix small quantities each time.
Application: RELEST Wind Putty Porefiller can be applied by brush or roller. After application, immediately remove excess material with a metal trowel, moving with high pressure up and down to ensure the pores are completely filled.
The temperature of the surface to be coated must be at least 3 °C (5 °F) above the dew point.
For optimum application and drying, the air and substrate temperature shall be between 15 °C (59 °F) and 35 °C (95 °F), with a relative humidity below 85%. Maintain good air circulation and ventilation to improve drying and overcoating and speed up application. Application below 15 °C (59 °F) slows drying and requires a longer overcoating interval.
A relative humidity below 35% significantly slows curing and increases the minimum overcoating interval.
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.
RELEST Wind Putty Porefiller is compatible with all products of the Relest Wind series. For more information, contact the local 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. |
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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.
| Binder | Curing agent |
|---|
| Weight | Volume | Packaging | Weight | Volume | Packaging |
| 6.6 kg | 4.7 L | 10 L | 3.7 kg | 3.27 L | 5 L |
| 220 kg | 156.65 L | 205 L | 5 kg | 4.43 L | 5 L |
| 220 kg | 194.7 L | 200 L |
| Binder | Curing agent |
|---|---|
| Gross weight | |
| 8.1 kg | 4.18 kg |
| 240.1 kg | 5.48 kg 241.6 kg |
| 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. Opened containers shall be re-sealed and the material used promptly. |
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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.
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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.
