Epoxy-Polyester powder coatings with antimicrobial technology MT-700 AM
Product description
MT-700 AM is a series of epoxy polyester hybrid powder coatings with antimicrobial technology. MT-700 AM is offering an optimum combination of decorative and protective qualities and granting very high chemical and mechanical properties of the cured film. These powders are commonly recommended for indoor usage.
MT-700 AM powders are available in the full range of colors in gloss, satin, textured, metallic and other special finishes or can be custom matched to the user’s requirements.
MT-700 AM is a high-quality powder coating designed to meet decorative and functional demands. Additionally, MT-700 AM uses antimicrobial technology to reduce the number of microbes such as bacteria and mold. Test results have proven reduction of bacteria and mold up to 99.9%.
Powder properties
| Typical value | |
| Chemical Type | Epoxy-polyester |
| Density | 1.2 – 1.7 g/cm³, depending on colour and effect |
| Recommended film thickness | 60 – 90µm |
| Shelf life | 24 months below 30 ºC |
| Storage Conditions | Under dry, cool (≤ 30°C) conditions
(open boxes must be resealed) |
| Curing schedule | 15-20 min at 180°C
8-12 min at 190°C 5-7 min at 200°C |
Application
Powders can be applied by manual or automatic electrostatic spray equipment. A good protection is linked with the recommended film thickness. All powders can show small color differences from batch to batch, this is normal and unavoidable. Applicators and fabricators are advised to use a single batch for parts that will be assembled together. Differences are more likely with special effect powders. Bonded products have better application properties than blended products (more stable) but attention should still be paid to line settings in order to avoid “marble effect”and changes in aspect after recycling. Different substrates (aluminium, steel, galvanized steel…), use of primer, and big changes in film thickness may give a different aspect. Products with different codes should not be mixed even if same colour and gloss. It is recommended that for consistent application and appearance product be fluidized during application.
Test conditions
Actual product performance will depend upon the circumstances under which the product is used. The results are based on mechanical and chemical tests which (unless otherwise indicated) have been carried out under laboratory conditions and are given for guidance only.
| Pre-treatment | Zinc Phosphate |
| Substrate | Polished steel |
| Curing schedule
(Object Temperature) |
6 min at 200°C (object temperature) |
| Film Thickness | 60 – 70µm |
Mechanical tests
| Typical value | Method/standard | |
| Adhesion | Class 0 | ISO 2409 (2 mm Crosshatch) |
| Erichsen cupping | Pass 7 mm | ISO 1520 |
| Flexibility | Pass 3 mm | ISO 1519 |
| Impact resistance | ≥30 kg.cm | ISO 6272-2 (d) |
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