Galvosil 15700

 

Product characteristics

Recommended use
Hempel’s Galvosil 15700 is recommended as a general purpose, heavy-duty, rust-preventing primer for newbuild and maintenance. Suitable for structural steel and piping. Recommended for a wide range of atmospheric corrosivity environments up to extreme (offshore).
Can be used as a single, complete coating for long-term protection of steel exposed to moderately to severely corrosive environment and abrasion. Also suitable for tank linings in accordance with Hempel’s Chemical Protection guide.

Service temperature:

• Without topcoat: maximum, dry, atmospheric exposure: 450°C [842°F].
• With a suitable topcoat: maximum, dry, atmospheric exposure: 540°C [1004°F], peak: 600°C [1112°F].
• Wet service temperatures: Please consult the Chemical protection guide at hempel.com.

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Certificates / Approvals

• Meets requirements to ISO 12944 when used as part of a predefined paint system. Part 6 C5, Part 9 CX.
• Meets requirements to NORSOK M-501 when used as part of a predefined paint system. Edition 6, System 1. Edition 7, System 1A.
• Complies with US FDA and EU food regulations for contact with liquid and dry foodstuff. Consult Hempel for details.
• Compliant with requirements for use in Slip-B construction joints. Contact Hempel for relevant test report.

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Product safety

Flash point: 18°C [64°F]

VOC content mixed product

• EU: 474 g/L [3.96 lb/US gal]
• US (coatings): 474 g/L [3.96 lb/US gal]
• US (regulatory): 474 g/L [3.96 lb/US gal]
• China: 474 g/L [3.96 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. According to EPA Method 24.

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: 15700
• Product components: Base 15709, Zinc 97170
• Standard shade / code: Grey 19840
• Gloss: Flat
• Volume solids: 64 ± 2%
• Specific gravity: 2.5 kg/L [21 lb/US gal]
• Reference dry film thickness: 50 micron [2.0 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.

Maintenance and Repair

• According to Hempel’s Specification.

Roughness

• Surface profile Medium (G) (ISO 8503-2).
  Consult Hempel’s separate Surface Preparation Guidelines for more details.

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Application

Mixing ratio: Base 15709 : Zinc 97170 (3.4 : 6.6 by weight)

Products containing floating or settling particles/pigments need to be continuously stirred during application. This is especially important in case of heavy thinning.

Thinner:

• Hempel’s Thinner 08700
• Hempel’s Accelerator & Thinner 0870M

Cleaner:

• Hempel’s Thinner 08700

Pot life

Product temperature	Pot life
10°C [50°F]	8 hours
20°C [68°F]	4 hours
25°C [77°F]	3 hours

Application method

• Airless spray: 10% thinning, nozzle pressure 100 bar [1500 psi], nozzle orifice 0.019–0.023″
• Air spray: 10%, Not Applicable
• Brush: 10%, Not Applicable

To minimise dry spray at high temperatures, extra thinning may be necessary. 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.

Continuing with the complete, unedited content from the Hempel’s Galvosil 15700 Product Data Sheet:

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Film thickness

Specification range	Dry film thickness	Wet film thickness	Theoretical spreading rate
Low	50 micron [2.0 mils]	78 micron [3.1 mils]	13 m²/L [530 sq ft/US gal]
High	100 micron [4.0 mils]	157 micron [6.3 mils]	6.4 m²/L [261 sq ft/US gal]
Recommended	50 micron [2.0 mils]	78 micron [3.1 mils]	13 m²/L [530 sq ft/US gal]

Overthickness must be closely controlled and never locally exceed 125 micron [5.0 mils] DFT. On irregular surfaces it is recommended to employ special care in avoiding over application.

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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.

Relative Humidity:

• Relative humidity must be above 50% during curing.

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Application remarks

• Consult Hempel’s Application Guidelines and Instructions for more details.

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Drying and overcoating

Product compatibility

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

Drying time

Surface temperature	Touch dry	Hard dry (min)	Fully cured (hours)
10°C [50°F]	1¼ h	120 min	36 h
20°C [68°F]	½ h	60 min	24 h
30°C [86°F]	¼ h	30 min	8 h

Determined for dry film thickness 50 micron [2.0 mils] at standard conditions, see Hempel’s Explanatory Notes for details. The drying times of moisture curing products will depend on the relative humidity, therefore drying times in the field could vary.

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Overcoating

• 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.
• According to Hempel’s Specification.

Overcoating details

• Remove zinc salts or other contamination before overcoating.
• Flash-coat technique is recommended when overcoating Galvosil qualities.
• Inorganic zinc silicates must be fully cured before overcoating.
• The surface must be dry and clean prior to application.

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Storage

Shelf life

Ambient temperature	Base	Zinc
25°C [77°F]	6 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	19.8 g CO₂e/m²
1 mil	0.103 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 – Galvosil 15700
  Issued by Hempel A/S – October 2024
  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.