product manual
It is a two-component fast-drying antirust primer composed of a hydroxyl-containing polymer and an isocyanate curing agent.
Excellent product construction, the film is tough, wear-resistant and impact-resistant, has a good good film state, and helps to improve the decorative finish of the upper layer.
Product Usage
Used as an intermediate paint for high performance topcoats.
Physical characteristics
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colour |
White grey
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Volume solids (mixed)
|
53±3%
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|
Recommended film thickness
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Dry film: 50μm
Wet film: 95μm
|
|
Theoretical dosage
|
0.118kg/㎡ @50μm
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|
Dry（23±2℃）
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≤2h
|
|
Hard work（23±2℃）
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≤24h
|
|
Fully cured（23±2℃）
|
7d
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Surface treatment
The surface of the steel structure is sandblasted to Sa21/2 or above, and the surface roughness reaches 30~75μm;
The surface to be painted should be kept dry and clean without debris.
Construction instructions
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The mixing ratio |
Component A: Component B = 5:1 (weight ratio)
Stir well with mechanical agitation
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Maturing time
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5~30min（23±2℃）
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Mixed use period
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≤4h（23±2℃）
|
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Thinner
|
ZH polyurethane thinner
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Construction method
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Painting method |
Brushing, roller coating (applicable)
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Air spray (applicable)
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Airless spray (recommended)
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Dilution rate
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0~10%
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0~10%
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0~5%
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Airless spraying: ejection pressure: 15~17MPa
Nozzle diameter: 0.46~0.58mm
Air spray: Adjust the viscosity with the matching diluent: 25-30 S (coating -4/23 ± 2 °C)
Recoat interval
|
Construction temperature |
5℃
|
20℃
|
30℃
|
|
Minimum recoating time
|
24h
|
16h
|
8h
|
|
Maximum recoating time
|
not limited
|
not limited
|
not limited
|
* When the paint film is exposed to excessive exposure for a long time, it will be pulverized, which will adversely affect the adhesion of the heavy coating. Therefore, the surface of the paint film must be subjected to brushing, sand sweeping or high-pressure fresh water rinsing, and sufficient time can be maintained during recoating. Interlayer adhesion.
Tool cleaning
All tools must be cleaned with ZH polyurethane thinner after use.
Safety
Use this product with care. Please refer to the MSDS of this product before starting work.
Please pay attention to the safety precautions on the packaging label before and during use. In addition, the safety regulations prescribed by the relevant national or local government should also be observed.
Personal protection includes, but is not limited to, lung, eye and skin protection. If swallowed or otherwise in contact with this product, seek medical attention immediately. Precautions must be taken to prevent fire, explosion and environmental protection.
Precautions
The construction site shall be protected from open flames and may only be constructed in a well ventilated condition. Strong ventilation is required in applications where it is confined or where air is not circulating.
Air humidity: When the relative humidity of the air is greater than 80%, construction is not recommended.
Ambient temperature: When the temperature is between -5 and 15 °C, it is recommended to use winter-type products. The temperature is higher than 15 °C and lower than 45 °C. It is recommended to use ordinary products, below -5 °C or above 45 °C. Construction is not recommended.
Surface temperature of the substrate: The surface temperature of the steel must be higher than the dew point by 3 °C during construction; however, if the surface temperature is too high, the film defects will be caused. Therefore, when the surface temperature of the substrate is higher than 50 °C, the construction conditions should be adjusted and the construction at noon will be carried out. Move to morning and evening.
Other aspects: When painting, it is necessary to prevent the surrounding environment from causing pollution to the paint film, such as: sandblasting, paint fog lamps. Avoid construction in the case of rain, snow, fog, sandstorms, and stop construction in areas with strong winds or high pollution. Excessive ventilation will cause the coating to dry too quickly and the paintability of the coating will deteriorate, and a large amount of pollutants ( Such as sand, salt particles, corrosion deposits) will cause the film properties to deteriorate, and the loss will increase.
