Hempathane Fast Dry 55750

PRODUCT DATASHEET

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PRODUCT CHARACTERISTICS

Recommended use

Hempathane Fast Dry 55750 is recommended as a high-build solution for protecting steel structures, in compliance with VOC regulations. The product may be specified as a one-coat direct-to-metal system in corrosive environments classified as C2 and C3. It may also be applied directly on galvanised steel.
Hempathane Fast Dry 55750 can also be used as an undercoated intermediate coat or topcoat within the system.

Service temperature

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

Certificates / Approvals

• Third-party verified, product-specific Environmental Product Declaration (Type III EPD, ISO 14025, EN 15804)
• Reaction to fire tested (as part of a coating system with approved primer and topcoat) according to EN13501-1 B-s1, d0.

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PRODUCT SAFETY

Flash point

29°C [84°F]

VOC content mixed product

Legislation	Value
EU	326 g/L [2.72 lb/US gal]
US (coatings)	326 g/L [2.72 lb/US gal]
US (regulatory)	326 g/L [2.72 lb/US gal]
China	326 g/L [2.72 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: 55750
• Product components: Base 55759, Curing Agent 97050
• Standard shade / code: Light grey 11150 *
• Gloss: Semi-gloss
• Volume solids: 65 ± 2%
• Specific gravity: 1.4 kg/L [12 lb/US gal]
• Reference dry film thickness: 100 micron [4.0 mils]
• shade / code: Aluminium grey 19871 **
• volume solids: 63 ± 2%
• specific gravity: 1.4 kg/L [12 lb/US gal]
• reference dry film thickness: 100 micron [4.0 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).
• Remove dust, blast media and loose materials.
• All damage of shopprimer and contamination from storage and fabrication should be thoroughly mechanically/chemically cleaned prior to final painting.

Maintenance and Repair

• Remove dust, blast media and loose materials.
• Feather edges to sound surrounding coating.
• Flash rust degree of maximum FR M (ISO 8501-4).
• Minor areas may be hand or power tool cleaned instead of abrasive blasting.
• Spot abrasive blasting to min. PSa 2 (ISO 8501-2) / SP 6 (SSPC).
• Water jetting to min. Wa 2 (ISO 8501-4).

Roughness

• Surface profile Medium (S) (ISO 8503-2).

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

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APPLICATION

Mixing ratio

Base 55759 : Curing Agent 97050 (9.1 : 0.9 by volume)
Stir well before use.

Thinner

Hempel’s Thinner 08080

Cleaner

Hempel’s Thinner 08080

Pot life

Product temperature	Pot life
20°C [68°F]	2 hours

Application method

Tool	Thinning max vol.	Application parameters
Airless spray	5%	Nozzle pressure: 200-250 bar [2900 psi], Nozzle orifice: 0.015-0.021″
Brush	5%	Not Applicable

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]	160 micron [6.4 mils]	100 micron [4.0 mils]
Wet film thickness	77 micron [3.1 mils]	245 micron [9.8 mils]	153 micron [6.1 mils]
Theoretical spreading rate	13 m²/L [530 sq ft/US gal]	4.1 m²/L [167 sq ft/US gal]	6.5 m²/L [265 sq ft/US gal]

For best performance, avoid excessive film thickness. Product may be specified in another film thickness than indicated depending on purpose and area of use. This will alter spreading rate, drying and curing time and overcoating interval.

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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 -10°C [14°F] during application and curing.
• Beware of ice on the surface at low temperatures.
• The film formation may be adversely affected by light rain, high humidity and/or condensation during application and the following interval after application: “12 hours, 20°C/68°F”.

RELATIVE HUMIDITY

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

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DRYING AND OVERCOATING

Product compatibility

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

Drying time

Surface temperature	Touch dry min	Hard dry min
20°C [68°F]	60 min	120 min

Determined for dry film thickness 100 micron [4.0 mils] at standard conditions, see Hempel’s Explanatory Notes for details.

Overcoating

Quality name	-10°C [14°F]	0°C [32°F]	20°C [68°F]
Atmospheric medium Min / Max	20 h / Ext*	12 h / Ext*	4 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.
Hempel’s specification supersedes any guidelines indicated in the overcoating table.

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 clean before overcoating.

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	24 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	6 g CO₂e/m²
1 mil	0.031 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 – Hempathane Fast Dry 55750
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.