Hempadur 15570

Product characteristics

Recommended use
As a maintenance and repair primer, intermediate, and/or finishing coat in Hempadur systems in severely corrosive environment. As a finishing coat where a cosmetic appearance is of less importance.
As a low temperature curing epoxy primer, intermediate, and/or finishing coat in paint systems according to specification. Well suited as a (blast) primer in epoxy systems.
Mist coat on Galvosil.

Service temperature:

• Maximum, dry exposure only: 140°C [284°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.

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Product safety

Flash point 25°C [77°F]

VOC content mixed product

Legislation Value
EU 412 g/L [3.44 lb/US gal]
US (coatings) 412 g/L [3.44 lb/US gal]
US (regulatory) 412 g/L [3.44 lb/US gal]
China 388 g/L [3.24 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.

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Product data

Product code
15570

Product components
Base 15579
Curing Agent 95570

Standard shade / code*
Brownish red 50630

Gloss
Flat

Volume solids
54 ± 2%

Specific gravity
1.3 kg/L [11 lb/US gal]

Reference dry film thickness
100 micron [4.0 mils]

Micaceous iron oxide (MIO) shade / code
Metallic grey 12430

Gloss
Flat

Volume solids
54 ± 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.
• All damage of shopprimer and contamination from storage and fabrication should be thoroughly mechanically/chemically cleaned prior to final painting.

New build:

• Abrasive blasting to min. Sa 2½ (ISO 8501-1) / SP 10 (SSPC).
• Stainless steel, aluminium and other non ferric metals and alloys: use non-metallic blast media (corundum, garnet, etc.). Sweep blasting to a uniform dense sharp profile, without blank spots.
• Remove dust, blast media and loose materials.

Maintenance and Repair

• Abrasive blasting to min. Sa 2 (ISO 8501-1) / SP 6 (SSPC).
• Water jetting to min. Wa 2 (ISO 8501-4).
• Flash rust degree of maximum FR M (ISO 8501-4).
• Minor areas can be cleaned by power tool to St 3 provided the surface is roughened and not polished.
• Stainless steel, aluminium and other non ferric metals and alloys: use non-metallic blast media (corundum, garnet, etc.). Sweep blasting to a uniform dense sharp profile, without blank spots.
• 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 15579 : Curing Agent 95570
(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]	2 hours

Application method

Tool	Thinning max vol.	Application parameters
Airless spray	5%	Nozzle pressure: 175 bar [2500 psi] Nozzle orifice: 0.019–0.021″
Air spray	15%	Not Applicable.
Brush	5%	Not Applicable.

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].

Film thickness

Specification range	Dry film thickness	Wet film thickness	Theoretical spreading rate
Low	50 micron [2.0 mils]	93 micron [3.7 mils]	11 m²/L [448 sq ft/US gal]
High	125 micron [5.0 mils]	231 micron [9.3 mils]	4.3 m²/L [175 sq ft/US gal]
Recommended	100 micron [4.0 mils]	185 micron [7.4 mils]	5.4 m²/L [220 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.

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.
• Temperature of product must be above 15°C [59°F] during application.
• Relative humidity must be below 85% during application and curing.

Application remarks

• Metallised surfaces should be overcoated before exposure to open air conditions.
• Flash-coat technique is recommended when overcoating porous substrates.

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Drying and overcoating

Product compatibility

• Previous coat: None or according to Hempel’s specification.
• Subsequent coat: According to Hempel’s Specification.
  Recommended products are: Hempadur, Hempathane, Hempatex

Drying time

Surface temperature	Touch dry	Hard dry	Fully cured
20°C [68°F]	min 60	hours 5	days 7

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

Overcoating

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

Quality name	0°C [32°F]	10°C [50°F]	20°C [68°F]	30°C [86°F]
Atmospheric medium
Hempadur 15570	18 h / Ext*	8 h / Ext*	4 h / Ext*	3 h / Ext*
Hempathane HS 55610	18 h / Ext*	8 h / Ext*	4 h / Ext*	3 h / Ext*
Hempatex Enamel 56360	9 h / 36 h	4 h / 16 h	2 h / 8 h	90 min / 6 h

Immersion

| Hempadur 15570 | 36 h / Ext*| 16 h / Ext* | 8 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.

Overcoating details

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

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.

Storage conditions

• Product must be stored according to local legislation, at maximum 40°C [104°F], without direct sunlight and protected from rain and snow.

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Carbon Footprint

Dry film thickness	GWP (Global Warming Potential)
1 µm	9.1 g CO₂e/m²
1 mil	0.047 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

•  link: https://www.hempel.com/service-and-support/technical-guidelines

Note: Always consult the latest version of the Product Data

• Product Data Sheet –Galvosil Fibre 15750
  Issued by Hempel A/S – October 2024
  Document Version: 4/4
  Source: https://www.hempel.com

 Sheet and associated documents direct

• Technical Guidelines and Explanatory Notes

• Last accessed: 28 May 2025
  Reference

ly from Hempel’s official website to ensure accuracy and compliance with the most current recommendations.