Hempadur MultiStrength 45703

Description

Hempadur Multi-Strength 45703 is a self-priming, two-component, high-build, aluminium pigmented pure epoxy paint which cures to an abrasion and corrosion resistant coating. The product is also available in a glass flake version for improved abrasion and chemical resistance.

Category Oil And Gas Tags Hempel, upstream Brand: Hempel

PRODUCT DATASHEET

PRODUCT CHARACTERISTICS

Recommended use

As a primer for Multi-Strength systems for immersion and splash-zone service.

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.

PRODUCT SAFETY

Flash point

27°C [81°F]

VOC content mixed product

Legislation	Value
EU	257 g/L [2.14 lb/US gal]
US (coatings)	257 g/L [2.14 lb/US gal]
US (regulatory)	257 g/L [2.14 lb/US gal]
China	257 g/L [2.14 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.

PRODUCT DATA

Product code: 45703
Product components: Base 45705, Curing Agent 98750
Standard shade / code: Aluminium red 19880
Gloss: Semi-gloss
Volume solids: 79 ± 2%
Specific gravity: 1.5 kg/L [13 lb/US gal]
Reference dry film thickness: 200 micron [8.0 mils]

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 2½ (ISO 8501-2) / SP 10 (SSPC).
Minor areas can be cleaned by power tool to St 3 provided the surface is roughened and not polished.
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.

APPLICATION

Mixing ratio

Base 45705 : Curing Agent 98750 (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
20°C [68°F]	60 min

Application method

Tool	Application parameters
Airless spray	Nozzle pressure: 250 bar [3600 psi], Nozzle orifice: 0.021-0.023″

FILM THICKNESS

Specification range	Low	High	Recommended
Dry film thickness	150 micron [6.0 mils]	300 micron [12 mils]	200 micron [8.0 mils]
Wet film thickness	190 micron [7.6 mils]	380 micron [15 mils]	253 micron [10 mils]
Theoretical spreading rate	5.3 m²/L [216 sq ft/US gal]	2.6 m²/L [106 sq ft/US gal]	3.9 m²/L [159 sq ft/US gal]

APPLICATION CONDITIONS

Surface temperature must be above -10°C [14°F] during application and curing.
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.

Relative Humidity

Relative humidity must be below 90% during curing and application

Application remarks

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

DRYING AND OVERCOATING

Drying time

Surface temperature	Hard dry
10°C [50°F]	10 h
20°C [68°F]	5½ 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 [14°F]	0°C [32°F]	20°C [68°F]
Atmospheric medium – Min / Max	– / –	– / –	– / –
Immersion – Min / Max	– / –	– / –	– / –

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.

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.

CARBON FOOTPRINT

Dry film thickness	1 µm	1 mil
GWP	10.5 g CO₂e/m²	0.054 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.

REFERENCES

Product Data Sheet – Hempadur Multi-Strength 45703
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.