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Hempel Hempadur Uniq 47743 is formulated as a universal primer or self primed high performance coating system for atmospheric or in-water service. Hempel Hempadur Uniq 47743 provides the possibility of reducing the number of primers for new-building.
Preparation For New Steel: Remove oil and grease etc. thoroughly with suitable detergent. Remove salts and other contaminants by high pressure fresh water cleaning. Abrasive blasting to minimum Sa 2½ (ISO 8501-1:2007) with a surface profile corresponding to Rugotest No. 3, N9a to N10, preferably BN9a to BN10,
Keane-Tator Comparator, 2.0 G/S or ISO Comparator, Medium (G). Apply immediately after cleaning. All damage of shop primer and contamination from storage and fabrication should be thoroughly cleaned prior to overcoating. For areas not later to be subject to aggressive exposure surface preparation to be as per normal
shipyard procedure.
Preparation For Ballast Tanks: For PSPC type approved coating, consult separate Application Guide.
Preparation For Stainless Steel: Remove oil and grease etc. thoroughly with suitable detergent. Remove salts and other contaminants by high pressure fresh water cleaning. Ballast tanks of chemical carriers to be abrasive blast cleaned to a uniform, sharp, dense profile (Rugotest No. 3, BN9a, ISO Comparator Medium (G), Keane-Tator Comparator 2.0 G/S) corresponding to Rz minimum 50 micron. Remove oil and grease etc. thoroughly with suitable detergent. Remove salts and other contaminants by high pressure fresh water cleaning. Welds, burn damage or other areas showing local corrosion to be power tool cleaned to minimum St 3 achieving a uniform, distinct surface profile. Surface preparation is improved by abrasive blast cleaning to Sa 2, preferably Sa 2½. As an alternative to dry cleaning, water jetting to sound, well adhering coat and/or to steel. Intact coat must appear with roughened surface after the water jetting. By water jetting to steel, cleanliness shall be: Wa 2 -Wa 2½ (atmospheric exposure) / minimum Wa 2½ (immersion) (ISO 8501-4:2006). A flash rust degree of maximum M (atmospheric exposure) / M, preferably L (immersion) (ISO 8501-4:2006) is acceptable before application. Feather edges to sound and intact areas. Dust off residues. Touch up to full film thickness.
Use only where application and curing can proceed at temperatures above 15°C/59°F. Maximum relative humidity: 85%. If drying and curing conditions are expected to take place below 10°C/50°F or at higher relative humidity, use: HEMPADUR UNIQ 47743. Apply only on a dry and clean surface with a temperature above the dew point to avoid condensation. In confined spaces provide adequate ventilation during application and drying. The temperature of the paint itself should be: 15-25°C/59-77°F. At temperatures below 15°C/59°F mix the components thoroughly and allow the mixture to pre-react before use.
Components: | Two Pack |
Type: | Polyamide / Amine Cured |
Finish: | Semi Gloss |
Stock Colours: | 22090 Cream, 12170 Light Grey |
Tintable: | No |
VOC Content: | 216 g/L |
Volume Solids: | 80% |
Suitable Substrates: | For new steel, ballast tanks and stainless steel |
Application Method: | Airless Spray |
Theoretical Coverage: | 5.3 m2 per litre at 150 microns |
Wet Film Thickness (WFT): | 200 microns |
Dry Film Thickness (DFT): | 150 microns |
Induction Time: | - |
Pot Life: | 1 hour at 20°C |
Surface Dry: | 3 hours at 20°C |
Overcoatable: | |
Fully Cured: | 21 days at 20°C |
Cleaner / Thinner: | Thin with Hempel Thinner 08450. Clean tools with HEMPEL'S TOOL CLEANER 99610 |
Shelf Life: | See container |
Packaging: | Available in 5 and 20 Litres |