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Inorganic zinc-rich primer 66-68
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Inorganic coating series
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产品描述
product manual
A two-component self-drying inorganic zinc-rich coating comprising alkyl silicate as a base material, zinc powder and an auxiliary agent. The product has excellent impact resistance, wear resistance, heat resistance, solvent resistance and rust resistance, excellent initial hardness, excellent heat resistance, less heat treatment and burning, and can be matched with most paint system paints.
Product Usage
For medium to severe corrosive environments, steel products such as shipyards, bridges, heavy machinery plants and steel structure engineering are used as rust preventive primers.
Physical characteristics
| colour |
gray |
|
Volume solids (mixed) |
52±3% |
|
Recommended film thickness |
Dry film: 75μm |
|
Theoretical dosage |
0.232kg/㎡ @75μm |
|
Dry（23±2℃） |
≤0.5h |
|
Hard work（23±2℃） |
≤12h |
|
Fully cured（23±2℃） |
7d |
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
| The mixing ratio |
Component A: Component B = 4:1 (weight ratio) |
|
Maturing time |
5~30min（23±2℃） |
|
Mixed use period |
≤4h（23±2℃） |
|
Thinner |
WJX inorganic zinc-rich thinner |
Construction method
| Painting method |
Brushing, roller coating (applicable) |
Air spray (applicable) |
Airless spray (recommended) |
|
Dilution rate |
|
0~10% |
0~10% |
Airless spraying: ejection pressure: 15~17MPa
Nozzle diameter: 0.43~0.53mm
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 |
48h |
24h |
24h |
|
Maximum recoating time |
Unlimited |
Unlimited |
Unlimited |
* When the paint film is exposed to excessive outdoor time, zinc salt will be formed, 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 WJX inorganic zinc-rich 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 ambient humidity is lower than 50% or higher than 80%, construction is not recommended.
Ambient temperature: When the ambient temperature is continuously 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.
After the two components are mixed, they are filtered using an 80-100 mesh filter bag and used. Stir with a dispersing machine and continue to stir during use to prevent precipitation of zinc powder.
For best performance, the temperature of the film should be kept above 10 °C during film formation, and the humidity should be kept above 65%. If the humidity is lower than required, spray air into the air with air spray gun or other methods after the construction is completed. In order to increase the humidity, it is forbidden to directly spray water on the surface of the coating to avoid film defects.
Oil-based resin paints, alkyd resin paints and other alkali-resistant paints cannot be directly coated on inorganic zinc-rich primers. The zinc salt formed on the surface of the paint film must be completely removed when the coating time is long.
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Our professional production and development of high performance heavy anti-corrosion coating
Widely used in petrochemical, marine engineering, engineering machinery, various types of ships, steel structures, bridges, wind power facilities, containers, etc., supplemented by floor coatings, fireproof coatings, temperature-resistant coatings, interior and exterior wall coatings, etc. .
Contact us :
Jiangsu Zhongren Paint Co., Ltd. Powered by www.300.cn 苏ICP备19024502号-2