Hempathane Topcoat 55210

PRODUCT DATASHEET

---

PRODUCT CHARACTERISTICS

Recommended use

Hempathane Topcoat 55210 is recommended as a finishing coat for protection of structural steel in severely corrosive atmospheric environment, where colour fastness and gloss retention are required.

Service temperature

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

Certificates / Approvals

• EC-type examined as a low flame spread material when used as part of a predefined paint system. Please refer to “Declaration of Conformity” on hempel.com for further details.
• Reaction to fire tested (as part of a coating system with approved primer and topcoat) according to EN13501-1 B-s1, d0.

Features

• For severely corrosive atmospheric environment.
• The minimum temperature for curing is -10°C [14°F].
• Glossy with very good gloss and colour retention.

---

PRODUCT SAFETY

Flash point

33°C [91°F]

VOC content mixed product

Legislation	Value
EU	447 g/L [3.73 lb/US gal]
US (coatings)	447 g/L [3.73 lb/US gal]
US (regulatory)	447 g/L [3.73 lb/US gal]
China	447 g/L [3.73 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. ªEU Directive 2004/42/CE.

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: 55210
• Product components: Base 55219, Curing Agent 95370
• Standard shade / code: White 10000 * (Wide range of colours is available via Hempel’s tinting system.)
• Gloss: Glossy
• Volume solids: 51 ± 2%
• Specific gravity: 1.2 kg/L [10 lb/US gal]
• Reference dry film thickness: 50 micron [2.0 mils]
• Aluminium shade / code: Aluminium grey 19002
•  gloss: Please consult Hempel’s Guideline on aluminium pigmented coatings.
• volume solids: 48 ± 2%
•  specific gravity: 1.1 kg/L [9 lb/US gal]
•  reference dry film thickness: 50 micron [2.0 mils]

---

SURFACE PREPARATION

Cleanliness

• According to Hempel’s Specification.

New build

• According to Hempel’s Specification.

Maintenance and Repair

• According to Hempel’s Specification.

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

---

APPLICATION

Mixing ratio

Base 55219 : Curing Agent 95370 (7 : 1 by volume)
Stir well before use.

Thinner

Hempel’s Thinner 08080

Cleaner

Hempel’s Thinner 08080, Hempel’s Thinner 08510

Pot life

Product temperature	Pot life
10°C [50°F]	6 hours
20°C [68°F]	4 hours

Application method

Tool	Thinning max vol.	Application parameters
Airless spray	10%	Nozzle pressure: 150 bar [2200 psi], Nozzle orifice: 0.017-0.019″
Air spray	10%	Not Applicable

If brush or roller application is used, more coats will be necessary to achieve the specified dry film thickness. To comply with Korean VOC regulation, thinning is limited to max. vol. 1%. Spray data are indicative and subject to adjustment. Pressure is for a material temperature of 20°C [68°F].

---

FILM THICKNESS

	Low	High	Recommended
Dry film thickness	40 micron [1.6 mils]	80 micron [3.2 mils]	50 micron [2.0 mils]
Wet film thickness	78 micron [3.1 mils]	157 micron [6.3 mils]	98 micron [3.9 mils]
Theoretical spreading rate	13 m²/L [530 sq ft/US gal]	6.4 m²/L [261 sq ft/US gal]	10 m²/L [407 sq ft/US gal]

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. For best performance, avoid excessive film thickness.

---

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.
• The film formation may be adversely affected by light rain, high humidity and/or condensation during application and the following interval after application: “10 hours, 20°C/68°F”.

RELATIVE HUMIDITY

• Relative humidity must be below 85% during curing.

APPLICATION REMARKS

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

---

DRYING AND OVERCOATING

Product compatibility

• Previous coat: According to Hempel’s Specification. Recommended products are: Hempaprime Multi 500, Hempadur
• Subsequent coat: None.

Drying time

Surface temperature	Touch dry hours	Surface dry min	Fully cured days
-10°C [14°F]	2½	–	–
0°C [32°F]	1⅔	–	–
20°C [68°F]	¾	60	7
40°C [104°F]	⅓	–	–

Overcoating

Quality name	-10°C [14°F]	0°C [32°F]	20°C [68°F]	40°C [104°F]
Atmospheric medium Min / Max	30 h / Ext*	18 h / Ext*	6 h / Ext*	100 min / 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 dry and clean prior to application.

Other remarks

• 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	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.

• The curing agent is sensitive to moisture. Store in a dry place and keep the can tightly closed until use.

---

CARBON FOOTPRINT

Dry film thickness	GWP (Global Warming Potential)
1 µm	10.7 g CO₂e/m²
1 mil	0.055 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.

---

REFERENCES

Product Data Sheet – Hempathane Topcoat 55210
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.