Coil
Products
POLYDURE Family POLYDURE for Ranges
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Technical Product Information:
PRODUCT POLYDURE® - Appliance Polyester Finishes for Stoves,
Ranges and Cookers
| •End Use Description | •Features | •Applications | •Test Specification |
| •Specified Parameters | •Product Composition | •Maintenance | •Cost & Warranty |
This specially formulated family of colormatched coatings is designed to meet or exceed specifications typically used for exterior wrappers, backpanels and miscellaneous components for stoves, ranges and cookers. Complementary primers and backside coatings can be made compatible with insulating foams and adhesives. Some coatings have been specially adapted for use on high heat appliance components. Years of continuous Akzo Nobel research, testing, development and commercial experience have produced a storehouse of proprietary polyester and polyurethane polymer technologies that are the tools for building custom coil coating formulations for stoves, ranges and cookers.
POLYDURE® polyester finishes are intended to be factory applied, to metal substrates according to Akzo Nobel Product Data Sheets, over primer, by the coil coating method only. This process economically and efficiently applies primer and system topside coatings according to exact film thickness specifications across the entire panel width. In this process, coatings are applied to specified metal substrates that have been thoroughly cleaned and chemically pretreated in accordance with manufacturer's instructions to optimize adhesion, forming and other performance characteristics. Topside primer and backside coatings must be baked and cured in factory ovens at temperatures ranging from 400-480°F. Color, gloss, hardness, cure, flexibility, and adhesion are only a few of the performance characteristics monitored in the quality control process. The coil coating process is highly efficient with near 100% transfer efficiency to the metal coils. This process collects and destroys almost all volatile organic content (VOC's) usually associated with any painting process.
Test methods established by ASTM (American Society for Testing and Materials).
Physical Properties of the Coating:
| Test | Performance | |
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H - minimum No gouge No scratch |
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F (minimum) | |
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40 In-lbs. No micro-crack |
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80 In-lbs. No micro-crack |
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80% minimum | |
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minimal No stain: Lemon Juice Lipstick Coffee Tea Ethanol 1% Citric NaOH 5% Tomato juice Margarine Mustard |
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Less than 15 mg loss per 100 cycles | |
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1-2T No tape-off 3-4T No micro-crack |
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4T No micro-crack Less than 1% rust or blisters |
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No tape off | |
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No change in: |
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Less than 3.0 (E color change | |
| No change in: Gloss |
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Pencil Hardness |
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| Flexibility | ||
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(9.0 joules or 80 inch-pounds) No micro-crack |
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Maximum 1/8" scribe creep Few #8 blisters |
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Less than 5% tape-off | |
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No creep or blisters |
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No change in: Color ü Gloss ü Pencil Hardness ü No swelling | |
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No staining | |
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No visual change: in Swelling in Etching in Sticking in Stain |
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Less than 1% surface blister 1/16" scribe creep |
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1 mm maximum filament | |
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No delamination No gloss change |
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750 hours at 120° F Less than 1/16 " creep |
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No change in: |
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Minimal color change | |
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100+ Double rubs | |
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Pass 270 lb./in2 | |
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Excellent |
Complete building panel test reports are available upon request. Consult Technical Product Information pages for specific fabricated metal end uses or call Akzo Nobel Sales and Marketing.
POLYDURE® polyester systems are made from international proprietary polyester and polyurethane polymer technologies. ISO 9001 certified Akzo Nobel manufacturing methods used at our Columbus Headquarters facility combine other specially selected raw materials into compatible and reliable coatings that consistently meet or exceed parameters identified in customer specifications at commercial coil line application speeds.
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Contact Akzo Nobel Coatings Marketing and Sales department to discuss your current specifications or special coating system performance requirements. Working with your prepainted substrate supplier, we can help provide estimates of coating system cost.