Hempaprime Strength 530

PRODUCT DATASHEET

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PRODUCT CHARACTERISTICS

Recommended use

Hempaprime Strength 530 is recommended as a heavy-duty coating for aggressive corrosive climate such as splash zones or for permanent immersion. The product can also be used as a self-priming, surface tolerant coat and a finishing coat in heavy-duty coating system.

Service temperature

• Maximum, dry exposure only: 120°C [248°F].
• Maximum, in water (peak): 50°C [122°F].

Certificates / Approvals

• Third-party verified, product-specific Environmental Product Declaration (Type III EPD, ISO 14025, EN 15804)
• Meets requirements to NORSOK M-501 when used as part of a predefined paint system. Edition 7, System 7A, 7B.

Features

• Glass flake free shade 11150.
• Glass flake reinforced shade 11154.
• Glass flake shade 1115G compliant with the requirements of ISO 24656, Annex D Cat. V.

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PRODUCT SAFETY

Flash point

28°C [83°F]

VOC content mixed product

Legislation	Value
EU	134 g/L [1.12 lb/US gal]
US (coatings)	134 g/L [1.12 lb/US gal]
US (regulatory)	134 g/L [1.12 lb/US gal]
China	134 g/L [1.12 lb/US gal]
Korea	134 g/L [1.12 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: 45500
Product components: Base 45509, Curing Agent 95505
Standard shade / code: Light Grey 11150
Gloss: Semi-gloss
Volume solids: 90 ± 2%
Specific gravity: 1.5 kg/L [13 lb/US gal]
Reference dry film thickness: 500 micron [20 mils]

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SURFACE PREPARATION

Cleanliness

• Remove oil, grease and other contaminants by suitable detergent cleaning.
• Remove salts, detergents and other contaminants by high pressure fresh water cleaning.

New build

• Abrasive blasting to min. Sa 2½ (ISO 8501-1) / SP 10 (SSPC).
• Remove dust, blast media and loose materials.

Maintenance and Repair

• Spot abrasive blasting to min. PSa 2 (ISO 8501-2) / SP 6 (SSPC).
• Minor areas can be cleaned by power tool to St 3 provided the surface is roughened and not polished.
• Water jetting to min. Wa 2 (ISO 8501-4).
• Flash rust degree of maximum FR M (ISO 8501-4).
• Remove dust, blast media and loose materials.

Roughness

• Surface profile Medium (G) (ISO 8503-2)

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

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APPLICATION

Mixing ratio

Base 45509 : Curing Agent 95505 (4 : 1 by volume)

Thinner

Hempel’s Thinner 08450

Cleaner

Hempel’s Tool Cleaner 99610

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POT LIFE

Product temperature	Pot life
10°C [50°F]	2 hours
20°C [68°F]	1 hour
30°C [86°F]	½ hour

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APPLICATION METHOD

Tool	Thinning max vol.	Application parameters
Airless spray	5%	Nozzle pressure: 250 bar [3600 psi], Nozzle orifice: 0.025-0.031″
Brush/Roller	8%	Not Applicable

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FILM THICKNESS

Specification range	Low	High	Recommended
Dry film thickness	175 micron [7.0 mils]	750 micron [30 mils]	500 micron [20 mils]
Wet film thickness	195 micron [7.8 mils]	834 micron [33 mils]	556 micron [22 mils]
Theoretical spreading rate	5.1 m²/L [208 sq ft/US gal]	1.2 m²/L [49 sq ft/US gal]	1.8 m²/L [73 sq ft/US gal]

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RELATIVE HUMIDITY

• Relative humidity must be below 90% during application.

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DRYING AND OVERCOATING

Product compatibility

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

Drying time

Surface temperature	Touch dry	Hard dry	Fully cured
-5°C [23°F]	15 h	43 h	10 d
10°C [50°F]	6 h	14 h	7 d
20°C [68°F]	3 h	7 h	3 d
30°C [86°F]	1½ h	4 h	2 d

Overcoating

Quality name	0°C [32°F]	10°C [50°F]	20°C [68°F]	30°C [86°F]
Immersion Hempaprime Strength 530	Min: 27 h / Max: 90 d	Min: 12 h / Max: 60 d	Min: 6 h / Max: 30 d	Min: 4½ h / Max: 22 d
Atmospheric severe Hempaprime Strength 530	Min: 23 h / Max: 90 d	Min: 10 h / Max: 60 d	Min: 5 h / Max: 30 d	Min: 4 h / Max: 22 d
Hempathane HS 55610	Min: 32 h / Max: 27 d	Min: 14 h / Max: 12 d	Min: 7 h / Max: 6 d	Min: 5½ h / Max: 4½ d

Overcoating details

• If the maximum overcoating interval is exceeded, roughening of the surface is necessary to ensure intercoat adhesion.

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OTHER REMARKS

• Epoxy coatings have an inherent tendency of chalking, fading and discolouring. This does not affect the performance of the coating.
• Hempel’s Specification supersedes any recommendations given in the Product Data Sheets.

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STORAGE

Shelf life

Ambient temperature	Base	Curing Agent
25°C [77°F]	24 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.

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CARBON FOOTPRINT

Dry film thickness	1 µm	1 mil
GWP	6.1 g CO₂e/m²	0.032 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 – Hempaprime Strength 530
Issued by Hempel A/S – May 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.