Hempablade Final 161

PRODUCT DATASHEET

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Product characteristics

Recommended use
As a top-coat in high performance coating systems for wind turbine blades, where high standards of cosmetic appearance, surface smoothness, colour retention, mechanical strength and durability are key requirements.

Service temperature:

• Maximum, dry exposure only: 120°C [248°F].

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Product safety

Flash point
75°C [167°F]

VOC content mixed product

Legislation	Value
EU	198 g/L [1.65 lb/US gal]
US (coatings)	198 g/L [1.65 lb/US gal]
US (regulatory)	198 g/L [1.65 lb/US gal]
Canada	198 g/L [1.65 lb/US gal]
China	198 g/L [1.65 lb/US gal]
Hong Kong	198 g/L [1.65 lb/US gal]
Korea	198 g/L [1.65 lb/US gal]

According to specific legislation, see details in the Explanatory Notes available at Hempel website, hempel.com or at your local Hempel website.

Handling
Handle with care. Before and during use, observe safety labels on packaging and paint containers and follow all local and national safety regulations. Always consult Hempel’s Safety Data Sheet for this product along with the Product Data Sheet.

For professional use only.

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Product data

Product code
57703

Product components
Base 57707
Curing Agent 97003

Standard shade / code
Light grey 11150

Gloss
Flat

Volume solids
80 ± 2%

Specific gravity
1.4 kg/L [11 lb/US gal]

Reference dry film thickness
80 micron [3.2 mils]

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Surface preparation

Cleanliness

• The surface must be dry and clean prior to application.
• According to Hempel’s Specification.

Consult Hempel’s separate Surface Preparation Guidelines for more details.

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Application

Mixing ratio
Base 57707 : Curing Agent 97003
(3 : 1 by volume)
Before mixing the components, stir them individually to homogeneity.
In general, thinning is not recommended.

Thinner
No thinning

Cleaner
Hempel’s Thinner 08080

Application method

Tool	Thinning max vol.	Application parameters
Roller	No thinning	Not Applicable.
Brush	No thinning	Not Applicable.

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Film thickness

Specification range	Low	High	Recommended
Dry film thickness	60 micron [2.4 mils]	100 micron [4.0 mils]	80 micron [3.2 mils]
Wet film thickness	75 micron [3.0 mils]	125 micron [5.0 mils]	100 micron [4.0 mils]
Theoretical spreading rate	13 m²/L [530 sq ft/US gal]	8 m²/L [326 sq ft/US gal]	10 m²/L [407 sq ft/US gal]

Please consult the Application Instruction for more detailed information.

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Application conditions

• To avoid condensation, apply on a clean and dry surface with a temperature that is at least 3°C [5°F] above the dew point.
• Provide adequate ventilation during application and drying.
• According to Hempel’s Specification.

Relative Humidity:

• Relative humidity must be below 85% during drying and curing.
• Relative humidity must be in the range 20-85% during application.

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Drying and overcoating

Product compatibility

• Previous coat: According to Hempel’s Specification.
• Subsequent coat: None or according to Hempel’s specification.

Drying time

Surface temperature	Surface dry (min)	Through dry (min)	Dry to walk on (hours)	Fully cured (days)
20°C [68°F]	45	60	2	7

Determined for dry film thickness 80 micron [3.2 mils] at standard conditions, see Hempel’s Explanatory Notes for details.

Overcoating
Consult Hempel’s specification for more information.

Drying conditions

• To obtain the drying time stated, it is important to maintain sufficient ventilation during application, drying and curing.

Overcoating details

• The surface must be dry and clean prior to application.
• According to Hempel’s Specification.

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Storage

Shelf life

Ambient temperature	Base	Curing Agent
25°C [77°F]	36 months	36 months

Shelf life from date of production, when stored in original, unopened containers. Thereafter, the product quality must be re-inspected.
Storage at elevated temperatures may reduce shelf life. For advice, please consult Hempel.

Storage conditions

• The curing agent is sensitive to moisture. Store in a dry place and keep the can tightly closed until use.
• Product must be stored according to local legislation, at maximum 35°C [95°F], without direct sunlight and protected from rain and snow.
• In case shelf life is exceeded, the product must be re-evaluated before use. Please contact a Hempel representative.

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Carbon Footprint

Dry film thickness	1 µm	1 mil
GWP (Global Warming Potential)	7.8 g CO₂e/m²	0.04 lb CO₂e/ft²

The carbon footprint is for 1 square meter / square foot of surface area with a dry film thickness of 1 micron / mil.

The scope includes raw materials, in-bound transport to the Hempel factory, Hempel manufacturing processes, and any Volatile Organic Compounds emitted during and after the application of the product.

It is calculated based on the standard shade defined in this PDS.
Values may vary with shade.

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References

Product Data Sheet – Hempablade Final 161
Issued by Hempel A/S – March 2025
Document Version: 4/4
Source: https://www.hempel.com

Technical Guidelines and Explanatory Notes
Last accessed: 28 May 2025
Reference link: https://www.hempel.com/service-and-support/technical-guidelines

Note: Always consult the latest version of the Product Data Sheet and associated documents directly from Hempel’s official website to ensure accuracy and compliance with the most current recommendations.