Hempablade Final 151

PRODUCT DATASHEET

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Product characteristics

Recommended use
Hempablade Final 151 is recommended as a top-coat in high performance coating systems for wind turbine blades, where high standards of aesthetics, rain erosion resistance, surface smoothness, colour retention, mechanical strength and durability are important requirements.

Service temperature:

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

Features

• Hempablade Final 151 offers excellent finish, superior weather resistance and rain erosion resistance. Fast drying and suitable for roller application.

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Product safety

Flash point
94°C [201°F]

VOC content mixed product

Legislation	Value
EU	47 g/L [0.39 lb/US gal]
US (coatings)	47 g/L [0.39 lb/US gal]
US (regulatory)	144 g/L [1.20 lb/US gal]
Canada	47 g/L [0.39 lb/US gal]
China	47 g/L [0.39 lb/US gal]
Hong Kong	144 g/L [1.20 lb/US gal]
Korea	47 g/L [0.39 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
58833

Product components
Base 58837
Curing Agent 98803

Standard shade / code
Light grey 11150

Gloss
Flat

Volume solids
42 ± 2%

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

Reference dry film thickness
40 micron [1.6 mils]

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Surface preparation

Cleanliness

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

New build:

• A uniform anchoring profile should be achieved by suitable surface preparation method(s).
• Remove dust, loose material and any other contamination.
• The surface must be dry and clean prior to application.

Maintenance and Repair

• Remove oil, grease and other contaminants by suitable detergent cleaning.
• A uniform anchoring profile should be achieved by suitable surface preparation method(s).
• Remove dust, loose material and any other contamination.
• The surface must be dry and clean prior to application.

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

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Application

Mixing ratio
Base 58837 : Curing Agent 98803
(17.1 : 1 by volume)
Stir well before use.

Thinner
Fresh water

Cleaner
Fresh water

Pot life

Product temperature	Pot life
20°C [68°F]	90 min

Pot life of waterborne two component epoxies and polyurethanes cannot be determined by visible changes to the coating itself. Also, unlike other coatings pot life becomes shorter with decreasing temperature. When pot life is exceeded discard remaining paint.

Application method

Tool	Thinning max vol.	Application parameters
Roller	5%	Not Applicable.

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Film thickness

Specification range	Low	High	Recommended
Dry film thickness	30 micron [1.2 mils]	50 micron [2.0 mils]	40 micron [1.6 mils]
Wet film thickness	71 micron [2.9 mils]	119 micron [4.8 mils]	95 micron [3.8 mils]
Theoretical spreading rate	14 m²/L [570 sq ft/US gal]	8.4 m²/L [342 sq ft/US gal]	11 m²/L [448 sq ft/US gal]

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Application conditions

• Surface temperature must be above 15°C [59°F] during application and curing.
• 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 in the range 30-85% during application.
• Relative humidity must be in the range 30-85% during curing.

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Application remarks

• Only demineralised or potable water, free of any contaminants, may be used for thinning.

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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	Touch dry min	Surface dry min	Fully cured days
20°C [68°F]	10	30	7

Determined for dry film thickness 40 micron [1.6 mils] at standard conditions, see Hempel’s Explanatory Notes for details.
Any masking tape used during paint application should be removed while the paint is still in the wet condition.

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]	12 months	12 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

• Temperature must not go below 5°C [41°F] during transport and storage.
• The curing agent is sensitive to moisture. Store in a dry place and keep the can tightly closed until use.
• 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)	9 g CO₂e/m²	0.047 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 151
Issued by Hempel A/S – July 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.