Hempadur Speed-Dry ZP 500

PRODUCT DATASHEET

---

Product characteristics

Recommended use
Hempadur Speed-dry ZP 500 as a primer or intermediate coat is suitable for onshore corrosion protection of new-build steel and constructions where fast to handle and short overcoating times are required, such as steel for factory buildings, stadiums, exhibition halls, airports, power plants, refineries, chemical and petrochemical plants.

Service temperature:

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

Certificates / Approvals

• Reaction to fire tested (as part of a coating system with approved primer and topcoat) according to EN13501-1 B-s1, d0.

Product safety

Flash point 26°C [79°F]

VOC content mixed product

Legislation	Value
EU	235 g/L [1.96 lb/US gal]
US (coatings)	271 g/L [2.26 lb/US gal]
US (regulatory)	272 g/L [2.27 lb/US gal]
China	271 g/L [2.26 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.

---

Product data

Product code
17500

Product components
Base 17509
Curing Agent 98415

Standard shade / code
Grey 17330

Gloss
Flat

Volume solids
75 ± 2%

Specific gravity
1.6 kg/L [13 lb/US gal]

Reference dry film thickness
125 micron [5.0 mils]

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

Gloss
Flat

Volume solids
75 ± 2%

Specific gravity
1.6 kg/L [13 lb/US gal]

Reference dry film thickness
125 micron [5.0 mils]

---

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

• Spot abrasive blasting to min. PSa 2 (ISO 8501-2) / 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.
• Feather edges to sound surrounding coating.
• 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 17509 : Curing Agent 98415 (2 : 1 by volume)
Stir well before use. It is recommended to use fixed volumes/can size for multi-component products.

Thinner
Hempel’s Thinner 08450

Cleaner
Hempel’s Tool Cleaner 99610

Pot life

Product temperature	Pot life
20°C [68°F]	90 min

Application method

Tool	Thinning max vol.	Application parameters
Airless spray	5%	Nozzle pressure: 225 bar [3300 psi]
		Nozzle orifice: 0.019-0.021″
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	70 micron [2.8 mils]	93 micron [3.7 mils]	11 m²/L [448 sq ft/US gal]
High	150 micron [6.0 mils]	200 micron [8.0 mils]	5 m²/L [204 sq ft/US gal]
Recommended	125 micron [5.0 mils]	167 micron [6.7 mils]	6 m²/L [244 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. Overthickness must be closely controlled and never locally exceed 300 micron [12 mils] DFT. On irregular surfaces it is recommended to employ special care in avoiding over application.

---

Application conditions

• Surface temperature must be above -10°C [14°F] during application and curing.
• 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.
• Temperature of product must be above 15°C [59°F] during application.

Relative Humidity:

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

---

Drying and overcoating

Product compatibility

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

Drying time

Surface temperature	Touch dry min	Hard dry hours
20°C [68°F]	60	3½

Determined for dry film thickness 125 micron [5.0 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	-10°C [14°F]	0°C [32°F]	20°C [68°F]
Atmospheric medium
Hempadur Quattro XO 17870	Min 18 h	9 h	2 h
	Max Ext*	Ext*	Ext*
Hempathane HS 55610	Min 18 h	9 h	2 h
	Max 90 d	45 d	10 d

*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.

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.

---

Storage

Shelf life

Ambient temperature	Base	Curing Agent
25°C [77°F]	36 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.

---

Carbon Footprint

Dry film thickness	1 µm	1 mil
GWP (Global Warming Potential)	6.3 g CO₂e/m²	0.033 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 – Hempadur Speed-Dry ZP 500
Issued by Hempel A/S – July 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.