ZINGA geriausia antikorozinė danga metalų apsaugai
Metalinių konstrukcijų apsauga nuo rūdijimo yra geriausia padengus antikorozine danga ZINGA.Šiai dangai kol kas yra mažai konkurentų įvertinus visus jos privalumus
Apie antikorozinę gryno cinko dangą žiūrėkite žemiau.
The film galvanising system Zinga is a one pack coating that contains 96% zinc in the dry film and provides cathodic protection to ferrous metals. It can be used as a unique system as an alternative to hot-dip galvanisation or metallisation, as primer in a duplex system or as a recharging system for hot-dip galvanisation or metallisation. It can be applied by brushing, rolling or spraying on a clean and rough substrate in a wide range of atmospheric circumstances. Zinga is also available as an aerosol and is sold as Zingaspray.
Physical data and technical information
•
Wet product
Components
-
zinc powder
-
aromatic hydrocarbons
-
binder
Density
2,67 Kg/dm³ (± 0,06 Kg/dm³)
Solid content
-
80% by weight (± 2%)
-
58% by volume (± 2%) according to ASTM D2697
Type of thinner
Zingasolv
Flash point
≥ 40°C to < 60°C
VOC
474 gr/Lt (EPA method 24) (= 178g/Kg)
•
Dry film
Colour
matt metallic grey (colour darkens after contact with humidity)
Zinc content
96% (±1%) by weight, with a purity of 99,995%
Zinga gives full cathodic protection and conforms to the standard ISO 3549 in regard to its zinc purity of 99,995 % and to the standard ASTM A780 in regard of its use as repair coating for hot-dip galvanisation.
Special characteristics
-
atmospheric temperature resistance
-
minimum : -40°C
-
maximum : 120°C with peaks up to 150°C
-
pH resistance in immersion: from 5,5 pH to 9,5 pH
-
pH resistance in atmospheric circumstances: from 5,5 pH to 12,5 pH
-
excellent UV resistance
Non-toxicity
A dry layer of Zinga is not toxic and can be used in contact with potable water, according to the standard BS 6920.
ZINGA Technical data sheet
Ref.: Technische fiches/1
TF Zinga.EN
05/10/10-15 2/6
www.zinga.be
•
Packing
500 ml
aerosol
1/4 Kg available as sample (on request)
1 Kg
available, packed in undividable boxes of 12 x 1 Kg
2 Kg
available, packed in undividable boxes of 6 x 2 Kg
5 Kg
available
10 Kg
available
25 Kg
available
•
Conservation
Storage
store in a cool and dry place
Shelf life
unlimited
In case of long time storage it is recommended to shake the unopened tin in an automatic shaker at least once every 3 years.
Application data
•
System recommendations
Unique system
-
Zinga is used as a stand-alone system, applied in 2 or 3 layers to obtain a total maximum DFT∗ of 120 to 180 μm.
-
This system is strongly recommended because of the easy maintenance. In time the layer will become thinner as the Zinga sacrifices itself due to the cathodic protection. A new layer of Zinga can be directly applied once the surface has been properly cleaned and it will re-liquidise and recharge the previous Zinga layer. The DFT of Zinga that should be applied depends upon the remaining Zinga layer.
-
The system Zinga 2 x 60 μm DFT conforms to the standards NORSOK M-501 syst. 7 and ISO 12944 cat. Im2 and Im3.
Duplex system
-
In a duplex system, Zinga should be applied in one single application, preferably by spraying, to obtain a maximum DFT of 60 to 80 μm.
-
The surface of the Zinga should be free of zinc salts and other contaminations prior to application of a topcoat.
-
Zinga can be topcoated with a wide range of compatible sealers and topcoats. To avoid pinholes when topcoated, use the mist coat & full coat technique (meaning a standard diluted coat of 25 to 30μm DFT followed by a full coat of the same product).
Stripe-coat
It is recommended to apply a stripe-coat of Zinga by brush on all sharp edges, nuts and bolts and weld areas before the application of the first full layer of Zinga.
Recharging system
Zinga can be applied on top of a hot-dip galvanising layer, a metallisation layer or an old Zinga layer in order to renew or enhance the cathodic protection. The DFT of Zinga that should be applied depends upon the existing galvanising layer.
∗DFT & WFT : dry film thickness and wet film thickness ; to be measured above the peaks of the roughness profile
ZINGA Technical data sheet
Ref.: Technische fiches/1
TF Zinga.EN
05/10/10-15 3/6
www.zinga.be
•
Coverage and consumption
Theoretical consumption
-
for 60 μm DFT : 0,28 Kg/m² or 0,10 Lt/m²
-
for 120 μm DFT : 0,55 Kg/m² or 0,21 Lt/m²
Theoretical coverage
-
for 60 μm DFT : 3,62 m²/Kg or 9,67 m²/Lt
-
for 120 μm DFT : 1,81 m²/Kg or 4,83 m²/Lt
Practical coverage
depends upon the roughness profile of the substrate and the application method
•
Environmental conditions during application
Ambient temperature
-
minimum -15°C
-
maximum 40°C
Relative humidity
-
maximum 95%
Surface temperature
-
minimum 3°C above the dew point
-
no visual presence of water or ice
-
maximum 60°C
Product temperature
During application the temperature of the Zinga liquid must remain between 15 and 25°C. A lower or higher temperature of the product will influence the smoothness of the film when drying.
•
Drying process and overcoating
Drying process
Zinga dries by evaporation of the solvent. The drying process is influenced by the total WFT, the number of coats applied, the ambient air and surface temperatures and the air circulation.
Drying time
for 40 μm DFT at 20°C in a well-ventilated environment:
-
touch-dry: after 10 min.
-
dry to handle: after 1 hour
-
fully cured: after 48 hours
-
ready for immersion: after 2 hours
Overcoating
-
with a new layer of Zinga :
-
brush : 1 hour after touch dry
-
spray gun : 1 hour after touch dry
-
with a compatible paint : after 6 to 24 hours depending on the drying conditions
Reliquidisation
Each new layer of Zinga reliquidises the former Zinga layer so that both layers form one homogeneous layer.
ZINGA Technical data sheet
Ref.: Technische fiches/1
TF Zinga.EN
05/10/10-15 4/6
www.zinga.be
Instructions for use
•
Surface preparation
Cleanliness
-
The most common method to obtain a clean (and at the same time rough) surface for the application of Zinga is: The metal substrate should first be degreased, preferably by steam-cleaning at 140 bar at 80°C. After that it should be grit-blasted or slurry-blasted to cleanliness degree SA 2,5 according to the standard ISO 8501-1 or to the cleanliness degree 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 grit-blasting is completed the surface should be de-dusted with non contaminated compressed air according to the standard ISO 8502-3 (class 2) or in case of slurry-blasting the surface should be dried with non-contaminated compressed air.
-
Another method to obtain a clean surface is UHP water-jetting to cleanliness degree WJ2 according to the standards NACE nr 5 and SSPC-SP12 level SC1. But keep in mind that this method does not create surface roughness.
-
This high degree of cleanliness is not needed when Zinga is applied on a hot-dip galvanisation or a metallisation layer, or when it is applied on top of an existing Zinga layer. Please consult with the Zingametall representative.
-
For substrates that will not be immersed Zinga can be applied on mild flash rust (FWJ-2) occurring in the allowed time limit. For applications that will be immersed Zinga can only be applied on an SA 2,5 prepared surface with contaminants to NACE No5/SSPC SP-12 level SC1 unless otherwise agreed with the Zingametall representative.
-
On small areas or on non-critical applications Zinga can be applied on a surface that is manually prepared to degree St 3 according to ISO 8501-1. Please consult with the Zingametall representative.
Roughness
-
Zinga should be applied on a metal substrate that has roughness degree Rz 50 to 70 μm (for total DFT < 280 μm) or Rz 60 to 80 μm (for total DFT > 280 μm) according to the standard ISO 8503-2. This can be obtained by grit-blasting (with sharp particles) but not by shot-blasting (with spherical particles). Make sure that the surface is degreased before the grit-blasting.
-
This high degree of roughness is not needed when Zinga is applied on a hot-dip galvanisation or a metallisation layer, or when it is applied on top of an existing Zinga layer. Please consult with the Zingametall representative.
-
On small areas or on non-critical applications Zinga can be applied on a surface that is manually prepared e.g. with a needle gun or a grinding disk, in order to obtain an adequate roughness for Zinga. Please consult with the Zingametall representative.
ZINGA Technical data sheet
Ref.: Technische fiches/1
TF Zinga.EN
05/10/10-15 5/6
www.zinga.be
Maximum time to application
Apply the Zinga as soon as possible on the prepared surface.
-
in dry circumstances : depending on the location
-
in case of water-cleaning or if the relative humidity is close to 80%: max. 4 hours waiting time
If contamination occurs before coating, the surface must be cleaned again as described above. Flash rust can be removed by means of a wire brush.
•
Special instructions
Stirring
-
Zinga must be thoroughly stirred to achieve a homogeneous liquid before application. After a maximum of 20 min. re-mixing is necessary.
-
During the spraying application, the product must be stirred continuously.
Dilution
Zinga can be diluted with 0 to 5% (volume on volume) of Zingasolv when using airless spray equipment and 0 to 25% for air supported applications. The Zingasolv must be added whilst stirring.
Rinsing of tools and equipment
Before and after using the spraying equipment, it must be rinsed with Zingasolv. Brushes and rollers should also be cleaned with Zingasolv. Never use White Spirit.
Special demands for spraying equipment
-
Pour the Zinga through a filter of 100 mesh (150 μm) into the drum.
-
For the spraying of Zinga, it is better to remove all filters from the pistol and from the drum to avoid blockage.
-
The spray gun must be equipped with reinforced needle springs.
•
Application by brush and roller
Viscosity
Zinga is ready for use when applied by brush or roller. Do not dilute.
First layer
The first layer must never be applied by roller, only by brush, in order to fill the cavities of the roughness profile and to wet the surface.
Type of brush and roller
-
short hair roller (mohair)
-
industrial round brush
•
Application by spraying with spray gun with gravity cup
Dilution
0 to 25% (volume on volume)
Spray viscosity
25 to 35 sec. Ford cup nr. 4 at 20°C
Pressure at the nozzle
2 to 4 bar
Nozzle opening
1,7 to 2,5 mm
•
Application by spraying with spray gun with pressure pot
Dilution
0 to 25% (volume on volume)
Spray viscosity
25 to 35 sec. Ford cup nr. 4 at 20°C
Pressure at the nozzle
3 to 4 bar
Pot pressure
0,8 to 1,5 bar
Nozzle opening
1,7 to 2,5 mm
ZINGA Technical data sheet
Ref.: Technische fiches/1
TF Zinga.EN
05/10/10-15 6/6
www.zinga.be
•
Application by airless spraying
Dilution
0 to 5% (volume on volume)
Pressure at the nozzle
± 150 bar
Nozzle opening
± 0,03 inch
•
Other application methods
Please consult with the Zingametall representative.
For more specific and detailed recommendations concerning the application of Zinga, please contact the Zingametall representative. For detailed information about the health and safety hazards and precautions for use, please refer to the Zinga safety data sheet.
Waiver∗
∗ The
Apie antikorozinę gryno cinko dangą žiūrėkite žemiau.
The film galvanising system Zinga is a one pack coating that contains 96% zinc in the dry film and provides cathodic protection to ferrous metals. It can be used as a unique system as an alternative to hot-dip galvanisation or metallisation, as primer in a duplex system or as a recharging system for hot-dip galvanisation or metallisation. It can be applied by brushing, rolling or spraying on a clean and rough substrate in a wide range of atmospheric circumstances. Zinga is also available as an aerosol and is sold as Zingaspray.
Physical data and technical information
•
Wet product
Components
-
zinc powder
-
aromatic hydrocarbons
-
binder
Density
2,67 Kg/dm³ (± 0,06 Kg/dm³)
Solid content
-
80% by weight (± 2%)
-
58% by volume (± 2%) according to ASTM D2697
Type of thinner
Zingasolv
Flash point
≥ 40°C to < 60°C
VOC
474 gr/Lt (EPA method 24) (= 178g/Kg)
•
Dry film
Colour
matt metallic grey (colour darkens after contact with humidity)
Zinc content
96% (±1%) by weight, with a purity of 99,995%
Zinga gives full cathodic protection and conforms to the standard ISO 3549 in regard to its zinc purity of 99,995 % and to the standard ASTM A780 in regard of its use as repair coating for hot-dip galvanisation.
Special characteristics
-
atmospheric temperature resistance
-
minimum : -40°C
-
maximum : 120°C with peaks up to 150°C
-
pH resistance in immersion: from 5,5 pH to 9,5 pH
-
pH resistance in atmospheric circumstances: from 5,5 pH to 12,5 pH
-
excellent UV resistance
Non-toxicity
A dry layer of Zinga is not toxic and can be used in contact with potable water, according to the standard BS 6920.
ZINGA Technical data sheet
Ref.: Technische fiches/1
TF Zinga.EN
05/10/10-15 2/6
www.zinga.be
•
Packing
500 ml
aerosol
1/4 Kg available as sample (on request)
1 Kg
available, packed in undividable boxes of 12 x 1 Kg
2 Kg
available, packed in undividable boxes of 6 x 2 Kg
5 Kg
available
10 Kg
available
25 Kg
available
•
Conservation
Storage
store in a cool and dry place
Shelf life
unlimited
In case of long time storage it is recommended to shake the unopened tin in an automatic shaker at least once every 3 years.
Application data
•
System recommendations
Unique system
-
Zinga is used as a stand-alone system, applied in 2 or 3 layers to obtain a total maximum DFT∗ of 120 to 180 μm.
-
This system is strongly recommended because of the easy maintenance. In time the layer will become thinner as the Zinga sacrifices itself due to the cathodic protection. A new layer of Zinga can be directly applied once the surface has been properly cleaned and it will re-liquidise and recharge the previous Zinga layer. The DFT of Zinga that should be applied depends upon the remaining Zinga layer.
-
The system Zinga 2 x 60 μm DFT conforms to the standards NORSOK M-501 syst. 7 and ISO 12944 cat. Im2 and Im3.
Duplex system
-
In a duplex system, Zinga should be applied in one single application, preferably by spraying, to obtain a maximum DFT of 60 to 80 μm.
-
The surface of the Zinga should be free of zinc salts and other contaminations prior to application of a topcoat.
-
Zinga can be topcoated with a wide range of compatible sealers and topcoats. To avoid pinholes when topcoated, use the mist coat & full coat technique (meaning a standard diluted coat of 25 to 30μm DFT followed by a full coat of the same product).
Stripe-coat
It is recommended to apply a stripe-coat of Zinga by brush on all sharp edges, nuts and bolts and weld areas before the application of the first full layer of Zinga.
Recharging system
Zinga can be applied on top of a hot-dip galvanising layer, a metallisation layer or an old Zinga layer in order to renew or enhance the cathodic protection. The DFT of Zinga that should be applied depends upon the existing galvanising layer.
∗DFT & WFT : dry film thickness and wet film thickness ; to be measured above the peaks of the roughness profile
ZINGA Technical data sheet
Ref.: Technische fiches/1
TF Zinga.EN
05/10/10-15 3/6
www.zinga.be
•
Coverage and consumption
Theoretical consumption
-
for 60 μm DFT : 0,28 Kg/m² or 0,10 Lt/m²
-
for 120 μm DFT : 0,55 Kg/m² or 0,21 Lt/m²
Theoretical coverage
-
for 60 μm DFT : 3,62 m²/Kg or 9,67 m²/Lt
-
for 120 μm DFT : 1,81 m²/Kg or 4,83 m²/Lt
Practical coverage
depends upon the roughness profile of the substrate and the application method
•
Environmental conditions during application
Ambient temperature
-
minimum -15°C
-
maximum 40°C
Relative humidity
-
maximum 95%
Surface temperature
-
minimum 3°C above the dew point
-
no visual presence of water or ice
-
maximum 60°C
Product temperature
During application the temperature of the Zinga liquid must remain between 15 and 25°C. A lower or higher temperature of the product will influence the smoothness of the film when drying.
•
Drying process and overcoating
Drying process
Zinga dries by evaporation of the solvent. The drying process is influenced by the total WFT, the number of coats applied, the ambient air and surface temperatures and the air circulation.
Drying time
for 40 μm DFT at 20°C in a well-ventilated environment:
-
touch-dry: after 10 min.
-
dry to handle: after 1 hour
-
fully cured: after 48 hours
-
ready for immersion: after 2 hours
Overcoating
-
with a new layer of Zinga :
-
brush : 1 hour after touch dry
-
spray gun : 1 hour after touch dry
-
with a compatible paint : after 6 to 24 hours depending on the drying conditions
Reliquidisation
Each new layer of Zinga reliquidises the former Zinga layer so that both layers form one homogeneous layer.
ZINGA Technical data sheet
Ref.: Technische fiches/1
TF Zinga.EN
05/10/10-15 4/6
www.zinga.be
Instructions for use
•
Surface preparation
Cleanliness
-
The most common method to obtain a clean (and at the same time rough) surface for the application of Zinga is: The metal substrate should first be degreased, preferably by steam-cleaning at 140 bar at 80°C. After that it should be grit-blasted or slurry-blasted to cleanliness degree SA 2,5 according to the standard ISO 8501-1 or to the cleanliness degree 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 grit-blasting is completed the surface should be de-dusted with non contaminated compressed air according to the standard ISO 8502-3 (class 2) or in case of slurry-blasting the surface should be dried with non-contaminated compressed air.
-
Another method to obtain a clean surface is UHP water-jetting to cleanliness degree WJ2 according to the standards NACE nr 5 and SSPC-SP12 level SC1. But keep in mind that this method does not create surface roughness.
-
This high degree of cleanliness is not needed when Zinga is applied on a hot-dip galvanisation or a metallisation layer, or when it is applied on top of an existing Zinga layer. Please consult with the Zingametall representative.
-
For substrates that will not be immersed Zinga can be applied on mild flash rust (FWJ-2) occurring in the allowed time limit. For applications that will be immersed Zinga can only be applied on an SA 2,5 prepared surface with contaminants to NACE No5/SSPC SP-12 level SC1 unless otherwise agreed with the Zingametall representative.
-
On small areas or on non-critical applications Zinga can be applied on a surface that is manually prepared to degree St 3 according to ISO 8501-1. Please consult with the Zingametall representative.
Roughness
-
Zinga should be applied on a metal substrate that has roughness degree Rz 50 to 70 μm (for total DFT < 280 μm) or Rz 60 to 80 μm (for total DFT > 280 μm) according to the standard ISO 8503-2. This can be obtained by grit-blasting (with sharp particles) but not by shot-blasting (with spherical particles). Make sure that the surface is degreased before the grit-blasting.
-
This high degree of roughness is not needed when Zinga is applied on a hot-dip galvanisation or a metallisation layer, or when it is applied on top of an existing Zinga layer. Please consult with the Zingametall representative.
-
On small areas or on non-critical applications Zinga can be applied on a surface that is manually prepared e.g. with a needle gun or a grinding disk, in order to obtain an adequate roughness for Zinga. Please consult with the Zingametall representative.
ZINGA Technical data sheet
Ref.: Technische fiches/1
TF Zinga.EN
05/10/10-15 5/6
www.zinga.be
Maximum time to application
Apply the Zinga as soon as possible on the prepared surface.
-
in dry circumstances : depending on the location
-
in case of water-cleaning or if the relative humidity is close to 80%: max. 4 hours waiting time
If contamination occurs before coating, the surface must be cleaned again as described above. Flash rust can be removed by means of a wire brush.
•
Special instructions
Stirring
-
Zinga must be thoroughly stirred to achieve a homogeneous liquid before application. After a maximum of 20 min. re-mixing is necessary.
-
During the spraying application, the product must be stirred continuously.
Dilution
Zinga can be diluted with 0 to 5% (volume on volume) of Zingasolv when using airless spray equipment and 0 to 25% for air supported applications. The Zingasolv must be added whilst stirring.
Rinsing of tools and equipment
Before and after using the spraying equipment, it must be rinsed with Zingasolv. Brushes and rollers should also be cleaned with Zingasolv. Never use White Spirit.
Special demands for spraying equipment
-
Pour the Zinga through a filter of 100 mesh (150 μm) into the drum.
-
For the spraying of Zinga, it is better to remove all filters from the pistol and from the drum to avoid blockage.
-
The spray gun must be equipped with reinforced needle springs.
•
Application by brush and roller
Viscosity
Zinga is ready for use when applied by brush or roller. Do not dilute.
First layer
The first layer must never be applied by roller, only by brush, in order to fill the cavities of the roughness profile and to wet the surface.
Type of brush and roller
-
short hair roller (mohair)
-
industrial round brush
•
Application by spraying with spray gun with gravity cup
Dilution
0 to 25% (volume on volume)
Spray viscosity
25 to 35 sec. Ford cup nr. 4 at 20°C
Pressure at the nozzle
2 to 4 bar
Nozzle opening
1,7 to 2,5 mm
•
Application by spraying with spray gun with pressure pot
Dilution
0 to 25% (volume on volume)
Spray viscosity
25 to 35 sec. Ford cup nr. 4 at 20°C
Pressure at the nozzle
3 to 4 bar
Pot pressure
0,8 to 1,5 bar
Nozzle opening
1,7 to 2,5 mm
ZINGA Technical data sheet
Ref.: Technische fiches/1
TF Zinga.EN
05/10/10-15 6/6
www.zinga.be
•
Application by airless spraying
Dilution
0 to 5% (volume on volume)
Pressure at the nozzle
± 150 bar
Nozzle opening
± 0,03 inch
•
Other application methods
Please consult with the Zingametall representative.
For more specific and detailed recommendations concerning the application of Zinga, please contact the Zingametall representative. For detailed information about the health and safety hazards and precautions for use, please refer to the Zinga safety data sheet.
Waiver∗
∗ The
