Hempel Shop Primer ZS 15890

Hempel Shop Primer ZS 15890 is a two-component, solvent borne zinc ethyl silicate shop primer, designed for automatic spray application. Especially suited, where welding and gas cutting properties are of importance.

Best Uses

Hempel Shop Primer ZS 15890 is formulated for short to medium-term protection of abrasive blast cleaned steel plates and other structural steel during the storage, fabrication, and construction periods. Suitable for use on ballast tanks and cargo oil tanks.

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

Application

Remove oil and grease with suitable detergent. Abrasive blasting to minimum Sa 2½ (ISO 8501-1:2007) with a surface profile equivalent to Rugotest No. 3, min. N9a, Keane-Tator Comparator, 2 mils segments or ISO Comparator Medium (G,S). For special purposes, grit blasting is necessary.

The surface must be completely clean and dry at the time of application, and its temperature must be above the dew point to avoid condensation. Minimum steel temperature: 0°C/32°F. Maximum steel temperature approximately: 55°C/131°F. Minimum temperature for curing is: 0°C/32°F. At relative humidity below 50%, curing is retarded.

For steel to be used for ballast tanks, IMO Resolution MSC.215(82) requires that the contamination with water soluble salts measured according to ISO 8502-9 must not exceed a conductivity equivalent to 50 mg/m2 sodium chloride. The dust quantity rating assessed according to ISO 8502-3 must not exceed rating “1” for dust size classes “3”, “4” or “5”.