MT-PZ is a powder coating primer containing zinc which is designed to give enhanced corrosion protection of mild steel. This duplex system combines cathodic protection and barrier effect. Dedicated to steel protection with a surface pre-treatment obtained by grit/shot blasting. MT-PZ is based on a specific epoxy zinc rich formulation that brings conductivity to enable the cathodic protection. MT- PZ includes a specific anticorrosive function which improves the protection in case of scratch. Qualisteelcoat approval: Base Material: Steel PE-0097 2 coat system – up to C4-H, mechanical pretreatment.
| ケミカルタイプ | Thermosetting epoxy |
| 外観 | スムーズ |
| Gloss level(60°) | 45～65台 |
| 色圏 | Grey (about RAL7012) |
| Recommended Film Thickness (µm) | 70 - 120μm |
| 密度（グラム/ cm3） | 2.1g /cm³ |
| Application | 静電気 |
| Storage | Under dry, cool (≤ 30°C) conditions |
| 賞味期限 | 12℃以下で25ヶ月 |
Surface preparation depends upon the metal, the type of surface, its conditions and the required performance. See our recommendation for pretreatment to be used with MT-PZ.
| 基板 | Mechanical pretreatment | Chemical pretreatment |
| 軟鋼 | Grit Blasting Sa 2.5 in accordance with ISO NF EN 8501-1. Roughness: Rz 35 60 µm / Ra 6-12 µm | 禁止された |
| 鋳鋼 | ||
| Electro Zinc steel | 禁止された | |
| 溶融亜鉛めっき鋼板 | ||
| Zinc sprayed (gas flame/electrical deposition) |
MT-PZ is suitable for corona electrostatic spraying. Tribo application is not recommended.
| アプリケーションの設定 | Fluidizing air pressure: 1.5kg/cm2 initially then 1kg/cm2 Transport air pressure: 0.5 to 0.8 kg/cm Recommended voltage: 65 to 70kV |
| Curing limits | Primer should be cured, or at least gelled, using the recommended curing schedules, before application of the topcoat. The object temperature must not be below 110°C or above 180°C. The primer should be cured in a convection oven, optionally with infra-red heaters, with air temperature not exceeding 180°C. |
| 推奨フィルム厚 | 70-120 µm A good protection is linked with the recommended film thickness. |
| リサイクル | Trials, with suitable recycling equipment, must be carried out before commencing production. Attention should be paid to the ratio of new powder, a minimum of 70% must be used. Gun nozzles must be cleaned every 30 minutes. |
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