Pro Acrylic

PRODUCT DATASHEET

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PRODUCT CHARACTERISTICS

Recommended use

Hempel’s Pro Acrylic is recommended as a finishing coat for protection of structural steel in severely corrosive environment, where light-fastness and gloss retention are required. The product may be specified as a one-coat direct-to-metal system in corrosive environments classified as C2 and C3.

Service temperature

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

Certificates / Approvals

• Meets requirements to NORSOK M-501 when used as part of a predefined paint system. Edition 6, System 1. Edition 7, System 1A, 1B.

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PRODUCT SAFETY

Flash point

32°C [90°F]

VOC content mixed product

Legislation	Value
EU	362 g/L [3.02 lb/US gal]
US (coatings)	362 g/L [3.02 lb/US gal]
US (regulatory)	362 g/L [3.02 lb/US gal]
China	362 g/L [3.02 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: 55883
• Product components: Base 55889, Curing Agent 97883
• Standard shade / code: White 10000 * (Wide range of colours is available via Hempel’s tinting system.)
• Gloss: Glossy
• Volume solids: 58 ± 2%
• Specific gravity: 1.3 kg/L [11 lb/US gal]
• Reference dry film thickness: 50 micron [2.0 mils]
• shade / code: Aluminium grey 19000 **
• volume solids: 57 ± 2%
• specific gravity: 1.2 kg/L [10 lb/US gal]
• reference dry film thickness: 50 micron [2.0 mils]

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SURFACE PREPARATION

Cleanliness

• According to Hempel’s Specification.

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

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APPLICATION

Mixing ratio

Base 55889 : Curing Agent 97883 (7 : 1 by volume)
Stir well before use.

Thinner

Hempel’s Thinner 08450

Cleaner

Hempel’s Thinner 08450

Pot life

Product temperature	Pot life
20°C [68°F]	4 hours

Application method

Tool	Thinning max vol.	Application parameters
Airless spray	5%	Nozzle pressure: 150 bar [2200 psi], Nozzle orifice: 0.017-0.019″

If brush or roller application is used, more coats will be necessary to achieve the specified dry film thickness. Spray data are indicative and subject to adjustment. Pressure is for a material temperature of 20°C [68°F].

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FILM THICKNESS

	Low	High	Recommended
Dry film thickness	50 micron [2.0 mils]	120 micron [4.8 mils]	50 micron [2.0 mils]
Wet film thickness	86 micron [3.4 mils]	207 micron [8.3 mils]	86 micron [3.4 mils]
Theoretical spreading rate	12 m²/L [489 sq ft/US gal]	4.8 m²/L [196 sq ft/US gal]	12 m²/L [489 sq ft/US gal]

For best performance, avoid excessive film thickness.

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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.
• Surface temperature must be above 0°C [32°F] during application and curing.

RELATIVE HUMIDITY

• Relative humidity must be below 85% during application.
• Relative humidity must be below 85% during curing.

APPLICATION REMARKS

• Two coats of the topcoat may be necessary to obtain full hiding power.

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DRYING AND OVERCOATING

Product compatibility

• Previous coat: According to Hempel’s Specification. Recommended products are: Hempadur Mastic 4588W, Hempadur 45141/45143
• Subsequent coat: None.

Drying time

Surface temperature	Surface dry hours	Hard dry hours	Fully cured days
20°C [68°F]	4½	10	7

Determined for dry film thickness 50 micron [2.0 mils] at standard conditions, see Hempel’s Explanatory Notes for details.

Overcoating

Quality name	0°C [32°F]	10°C [50°F]	20°C [68°F]
Atmospheric medium Min / Max	18 h / Ext*	9 h / Ext*	6 h / Ext*

Ext*: Depending on the actual exposure conditions, the coated surface is overcoatable for an extended period of time. Contact your local Hempel representative for advice. 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.
• Condensation on the freshly applied coating should be avoided.

Overcoating details

• The surface must be dry and clean prior to application.

Other remarks

• 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	18 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.

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CARBON FOOTPRINT

Dry film thickness	GWP (Global Warming Potential)
1 µm	11.4 g CO₂e/m²
1 mil	0.059 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 – Hempel’s Pro Acrylic 55883
Issued by Hempel A/S – June 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.