Shopprimer ZS 15890

Product characteristics

Recommended use
For short to medium-term protection of abrasive blast cleaned steel plates and other structural steel during the storage, fabrication, and construction periods.

Service temperature:

• Without topcoat: maximum, dry, atmospheric exposure: 400°C [752°F].

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Certificates / Approvals

• Approved as weldable pre-fabrication primer. Contact Hempel for details.

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Features

• Excellent resistance to weathering
• Excellent resistance to oil and organic solvents
• Excellent heat resistance

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Product safety

Flash point: 22°C [72°F]

VOC content mixed product

Legislation	Value
EU	620 g/L [5.17 lb/US gal]
US (coatings)	620 g/L [5.17 lb/US gal]
US (regulatory)	620 g/L [5.17 lb/US gal]
China	620 g/L [5.17 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: 15890
• Product components: Base 15899, Curing Agent 99751
• Standard shade / code: Grey 19840
• Gloss: Flat
• Volume solids: 28 ± 2%
• Specific gravity: 1.3 kg/L [11 lb/US gal]
• Reference dry film thickness: 15 micron [0.6 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.
• Abrasive blasting to min. Sa 2½ (ISO 8501-1) / SP 10 (SSPC).
• Remove dust, blast media and loose materials.

Roughness

• Surface profile Medium (G) (ISO 8503-2).
• 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 15899 : Curing Agent 99751 (2 : 3 by volume)

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 Thinner 08570

Cleaner

• Hempel’s Thinner 08700
• Hempel’s Thinner 08570

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Pot life

Product temperature	Pot life
20°C [68°F]	24 hours

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Application method

Tool	Thinning max vol.	Application parameters
Airless spray	30%	Nozzle pressure: 80 bar [1200 psi], Nozzle orifice: 0.019–0.023″
Air spray	30%	Not Applicable
Brush	15%	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

Specification range	Dry film thickness	Wet film thickness	Theoretical spreading rate
Low	10 micron [0.4 mils]	35 micron [1.4 mils]	28 m²/L [1141 sq ft/US gal]
High	25 micron [1.0 mils]	88 micron [3.5 mils]	11 m²/L [448 sq ft/US gal]
Recommended	15 micron [0.6 mils]	53 micron [2.1 mils]	19 m²/L [774 sq ft/US gal]

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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] and below 55°C [131°F] during application and curing.

Relative Humidity:

• Must be above 50% during curing.

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Drying and overcoating

Product compatibility

• Previous coat: None
• Subsequent coat: According to Hempel’s Specification

Drying time

Surface temperature	Dry to handle
20°C [68°F]	min 5 minutes

Determined for dry film thickness 15 micron [0.6 mils] at standard conditions, see Hempel’s Explanatory Notes for details.

Drying conditions

• To obtain the drying time stated, it is important to maintain sufficient ventilation during application, drying and curing.

Overcoating details

• Inorganic zinc silicates must be fully cured before overcoating.
• Remove zinc salts or other contamination before overcoating.

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Storage

Shelf life

Ambient temperature	Base	Curing Agent
25°C [77°F]	12 months	12 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.

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Carbon Footprint

Dry film thickness	GWP (Global Warming Potential)
1 µm	21.6 g CO₂e/m²
1 mil	0.112 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 – Hempadur 15553
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