Hempadur MultiStrength 45751

PRODUCT DATASHEET

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PRODUCT CHARACTERISTICS

Recommended use

Hempadur Multi-Strength 45751 is recommended as a heavy duty coating for areas exposed to abrasion and aggressive corrosive climate such as ramps, ship hulls and holds of bulk carriers. The product is also suitable for ballast tank coatings for special purposes such as chemical carriers carrying hot cargoes and other purposes where a pure epoxy coating is requested. Is applicable as a finishing coat where a cosmetic appearance is of less importance.
Hempadur Multi-Strength 45751 is intended for use in warm climates.

Service temperature

• Maximum, dry exposure only: 140°C [284°F].
• Maximum, in water (no temperature gradient): 50°C [122°F].
• Other liquids: Please contact Hempel.

Certificates / Approvals

• Recognized Abrasion Resistant Ice Coating. Consult Hempel for specific Type Approval Certificates.

Features

• Self-priming.
• Abrasion and corrosion resistant.

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PRODUCT SAFETY

Flash point

27°C [81°F]

VOC content mixed product

Legislation	Value	5% thinning, by volume	Limit value, phase II (2010)
EU	255 g/L [2.13 lb/US gal]	280 g/L [2.34 lb/US gal]	500 g/L [4.17 lb/US gal]
US (coatings)	255 g/L [2.13 lb/US gal]	–	–
US (regulatory)	255 g/L [2.13 lb/US gal]	–	–
China	255 g/L [2.13 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. VOC values may vary with shade, please consult the Safety Data Sheet, section 9.

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: 45751
Product components: Base 45755, Curing Agent 97652
Standard shade / code: Grey 12340
Gloss: Semi-gloss
Volume solids: 79 ± 2%
Specific gravity: 1.6 kg/L [13 lb/US gal]
Reference dry film thickness: 200 micron [8.0 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).
• Concrete: According to Hempel’s Specification.
• 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 may be hand or power tool cleaned instead of abrasive blasting.
• Flash rust degree of maximum FR M (ISO 8501-4).
• Remove dust, blast media and loose materials.
• Water jetting to min. Wa 2 (ISO 8501-4).

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 45755 : Curing Agent 97652 (3 : 1 by volume)
Stir well before use.

Thinner

Hempel’s Thinner 08450

Cleaner

Hempel’s Tool Cleaner 99610

Pot life

Product temperature	Pot life
15°C [59°F]	2 hours
20°C [68°F]	1 hour

Application method

Tool	Thinning max vol.	Application parameters
Airless spray	5%	Nozzle pressure: 250 bar [3600 psi], Nozzle orifice: 0.021-0.023″
Brush/Roller	5%	Not Applicable

If brush or roller application is used, more coats will be necessary to achieve the specified dry film thickness.

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FILM THICKNESS

Specification range	Low	High	Recommended
Dry film thickness	125 micron [5.0 mils]	300 micron [12 mils]	200 micron [8.0 mils]
Wet film thickness	158 micron [6.3 mils]	380 micron [15 mils]	253 micron [10 mils]
Theoretical spreading rate	6.3 m²/L [257 sq ft/US gal]	2.6 m²/L [106 sq ft/US gal]	3.9 m²/L [159 sq ft/US gal]

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APPLICATION CONDITIONS

• Temperature of product must be above 15°C [59°F] during application.
• 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.
• Surface temperature must be above 10°C [50°F] during application and curing.

Relative Humidity

• Must be below 90% during curing.
• Must be below 90% during application.

Application remarks

• Product requires heavy duty spray equipment; spray hoses shall be as short as possible.

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DRYING AND OVERCOATING

Drying time

Surface temperature	Surface dry	Hard dry
10°C [50°F]	13 h	15 h
20°C [68°F]	3 h	6 h
30°C [86°F]	2½ h	3 h
40°C [104°F]	1½ h	2 h

Determined for dry film thickness 200 micron [8.0 mils] at standard conditions.

Overcoating

Hempel’s specification supersedes any guidelines indicated in the overcoating table.

Quality name	10°C [50°F]	20°C [68°F]	30°C [86°F]	40°C [104°F]
Atmospheric severe Hempadur Multi-Strength 45751	– / –	– / –	– / –	– / –
Hempathane HS 55610	– / –	– / –	– / –	– / –
Immersion Hempadur Multi-Strength 45751	– / –	– / –	– / –	– / –

Overcoating times are indicative for products of the same generic chemistry. 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

• If the maximum overcoating interval is exceeded, roughening of the surface is necessary to ensure intercoat adhesion.
• The surface must be dry and clean prior to application.

Other remarks

• Epoxy coats have an inherent tendency of chalking in outdoor exposure. 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]	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.

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CARBON FOOTPRINT

Dry film thickness	1 µm	1 mil
GWP	8.2 g CO₂e/m²	0.043 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 – Hempadur Multi-Strength 45751
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.