A single component with high zinc content and silver effect, used by single layer or topcoat with cold galvanizing
Features
1.Zinc dust is used together with flake aluminum powder, the metal effect is good; The flake aluminum powder is arranged in parallel in the coating film, which can prevent the intrusion of moisture and ultraviolet rays to the coating film.
2.Convenient application and Eco-friendly
3.Excellent anti-discoloration performance in outdoor rain
4.Zinc dust content≥80%, aluminum powder≥10%
Recommended use
Steel structure long-term anti-corrosion purposes, it can be used as a single coat, and can also be used as a top coat with ZD cold galvanizing compound.
Touchup of galvanized steel structurer, the best material to replace or touchup of thermal spray galvanized and hot-dip galvanized layers.
Application Instructions
Applicable Substrate and Surface Treatments:
Steel: blast cleaned to Sa2.5 (ISO8501-1) or minimum SSPC SP-6, blasting profile Rz40μm~75μm (ISO8503-1) or power tool cleaned to minimum ISO-St3.0/SSPC SP3
Touch up of galvanized surface
Thoroughly remove grease on the surface by the cleaning agent, clean off salt and other dirt through high-pressure fresh water, use a power tool to polish the area of rust or mill scale.
Applicable and Curing
Pot life: unlimited
Application environment temperature: 0℃- 50℃
Relative air humidity: ≤95%
Substrate temperature during application and curing should be at least 3℃ above dew point
Outdoor application is prohibited in severe weather such as rain, fog, snow, strong wind and heavy dust
The temperature is high in summer, be careful with dry spraying, and keep ventilated during application and drying periods in the narrow spaces
Application methods
Airless spray /air spray/brush/roller
Brush and roller coating are only recommended for stripe coat, small area coating or touch up and may cause color difference.
Application Parameters
| Application method | Unit | Airless spray | Air spray | Brush/Roller |
| Nozzle orifice | mm | 0.43～0.53 | 1.5～2.5 | —— |
| Nozzle pressure: | kg/cm2 | 150～200 | 3～4 | —— |
| Thinner | % | 5～10 | 10～20 | 0～10 |
Drying & Curing
| Substrate temperature | 5℃ | 15℃ | 25℃ | 35℃ |
| Surface-dry | 2 hrs. | 1 hr. | 30 mins | 10 mins |
| Through-dry | 5 hrs. | 4hrs | 2 hrs. | 1 hr. |
| Recoating interval Min. | 5 hrs. | 4hrs | 2 hrs. | 1 hr. |
| Recoating interval Max. | Recoating is unlimited, the coated surface must be free from chalking and other contaminants. Keep it clean and dry. If necessary, perform sufficient roughening before coating. | |||
Preceding & Consequent coating
Preceding coat：ZD Cold Galvanizing, or spray directly on the surface of steel or hot-dip galvanized or hot-sprayed steel with the surface treatment of Sa2.5 or St3.
Consequent coat：Under normal circumstances, no consequent coating is required.
Packing & Storage
Packing：25kg
Flash point：>27℃
Storage：Must be stored in accordance with local governmental regulations. The storage environment must be dry, cool, well-ventilated and away from heat and fire sources. The packaging container must be kept tightly closed.
Shelf life：2 years in good storage condition.
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According to your actual needs, choose the most reasonable overall design and planning procedures