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. 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.
| Uri ng kemikal | Thermosetting epoxy |
| Hitsura | Makinis |
| kulay | Grey |
| Inirerekomendang Kapal ng Pelikula (µm) | 70 – 120 µm |
| Density (g / cm3) | 2.9 ± 0.03 g/cm³ |
| application | Electrostatic |
| Imbakan | Sa ilalim ng tuyo, malamig (≤ 30°C) na mga kondisyon |
| shelf buhay | Hindi bababa sa 12 buwan mula sa petsa ng produksyon |
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.
| Substrate | Mechanical pretreatment | Pretreatment ng kemikal |
| Mild steel | Grit Blasting Sa 2.5 alinsunod sa ISO NF EN 8501-1. Pagkagaspang: Rz 35 60 µm / Ra 6-12 µm | Pinagbawalan |
| Cast bakal | ||
| Electro Zinc steel | Pinagbawalan | |
| Hot dip galvanized steel | ||
| Zinc sprayed (gas flame/electrical deposition) |
MT-PZ is suitable for corona electrostatic spraying. Tribo application is not recommended.
| Mga setting ng application | 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. |
| Inirerekomenda ang kapal ng pelikula | 70-120 µm Ang isang mahusay na proteksyon ay nauugnay sa inirerekomendang kapal ng pelikula. |
| Recycling | 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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