ZINGALU is a one component high performance stand alone organic zinc rich coating. ZINGALU has 90% of
ultra pure zinc (ASTM D520 type III) and 4% aluminium flakes in the dry film which provide long lasting cathodic
protection to ferrous metals. The aluminium flakes offer barrier protection and a bright finishing color, matching
the color of galvanised surfaces. Therefore ZINGALU is ideal for repairing and touching-up of damaged or old
hot-dipped, Zinganised or other zinc coated structures.It can be applied by brush, roller or spray equipment on a
clean and rough substrate in a wide range of atmospheric circumstances.
Zingaalu - Film Galvanizing with Hot Dip Finish (silver) - 5kg
Tech Specs
Wet product
Components - Zinc powder
- Aromatic hydrocarbons
- Binder
- Aluminium flakes (non leafing)
Density 2,46 kg/dm. (Å}0,06 kg/dm.)
Solid content - 80% by weight (Å}2%)
- 63% by volume (Å}2%)
Type of thinner Zingasolv
Flash point ≥ 40ÅãC - 60ÅãC
VOC 530 g/L
Dry film
Colour Grey with aluminium shine
Gloss Shimmer
Active metallic content Aluminium: 4% (Å}1%) by weight
Zinc: 90% (Å}1%) by weight, with a purity of 99,995%.
ZINGALU gives full cathodic protection and conforms to the standard ISO
3549 in regard to its zinc purity.
Special characteristics - Atmospheric temperature resistance of dry film
»»Minimum: -40ÅãC
»»Maximum: 120ÅãC with peaks up to 150ÅãC
- pH resistance in immersion: 5,5 pH to 9,5 pH.
- pH resistance in atmospheric conditions: 3,5 pH to 12,5 pH.
- Excellent UV resistance
conservation
Shelf life 2 years in the original, unopened package. Can be used after being reevaluated
after shelf life.
Storage Store in a cool and dry place at temperatures between 5ÅãC and +25ÅãC.
Pot life If closed correctly after usage, ZINGALU will remain applicable.
surface prepa ration
Cleanliness - The metal substrate should first be degreased, preferably by steam-cleaning
at 140 bar at 80ÅãC. After that it should be grit-blasted or slurryblasted
to cleanliness degree SA 2,5 according to the standard ISO
8501-1:2007 or to the cleanliness degree as described in the standards
SSPC-SP10 and NACE nr 2. This means that the surface must be free from
rust, grease, oil, paint, salt, dirt, mill scale and other contaminants. Once the
blasting is completed the surface should be de-dusted with non contaminated
compressed air according to the standard ISO 8502-3 (max
quantity 2)
- Another method to obtain a clean surface is UHP water-jetting to cleanliness
degree SSPC-WJ2. But keep in mind that this method does not
create surface roughness.
- This high degree of cleanliness is also needed when ZINGALU is applied on
a hot-dip galvanisation or a metallisation layer, or when it is applied on top of
an existing ZINGALU layer, but not the same roughness degree (see further).
Please consult with the Zingametall representative.
- ZINGALU can be applied on light flash rust occurring (after wet blasting) in
the allowed time limit, but it is not advised for optimal results.
- On small areas or on non-critical applications ZINGALU can be applied on a
surface that is manually prepared to degree St 2 according to ISO 8501-1.
- For more information on surface cleanliness, please contact Zingametall.
Roughness - It is recommended to apply ZINGALU on a metal substrate that has a
roughness grade of medium G according to the standard ISO 8503-4:2012.
- Make sure that the surface is degreased before the blasting.
- This high degree of roughness is not needed when ZINGALU is applied on
a hot-dip galvanisation or a metallisation layer, or when it is applied on top of
an existing ZINGALU. Old hot-dipped surfaces have adequate roughness,
new hot-dipped surfaces require a sweep blast or adequate power tool
roughening.
Maximum time to application Apply the ZINGALU as soon as possible onto the prepared metal substrate
(it is recommended to apply before flash rust appears). If contamination occurs
before coating, the surface must be cleaned again as described above