PPG DURANAR® Liquid Coatings
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Description
Duranar liquid extrusion and coil coatings are available in a vibrant palette of solid, metallic and mica formulations that add exceptional durability to architectural metals. One of the most trusted architectural products, these coatings have protected buildings of distinction around the world for over 50 years.
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Chemistry
Fluoropolymer (70% PVDF + 30% Acrylic)
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Benefits
- Outstanding UV durability, color and chalk resistance
- Superior corrosion resistance
- Touch-up ability
- Mica formulation option (Sunstorm) for pearlescent /metalescent finish
- XL formulation provides additional coats for corrosion and stain protection
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Suggested End Uses
- Building panels
- High-end storefronts
- Curtain walls
- Roof panels
Technical Properties
Test table / real data
| Property | Standard | Results: Aluminum substrate | Results: Coated steel substrate |
|---|---|---|---|
| Dry Film Thickness | ASTM D1400 | 0.20-0.30 mil primer 0.70-0.80 mil color/metallic 0.30-0.40 mil clear topcoat |
0.20 mil primer 0.75 mil barrier 0.75 mil color/metallic 0.50 mil clear topcoat |
| Gloss | ASTM D523 | 60°: 25-35; 85°: <10 | 60°: 25-35; 85°: <10 |
| Pencil Hardness | ASTM D3363 | F min - 2H | F min - 2H |
| Cross Hatch Adhesion (Dry, Wet & Boiling Water) | ASTM D3359 | No adhesion loss | No adhesion loss |
| Direct Impact | - | - | - |
| Reverse Impact | ASTM D2794: 1.5 x metal thickness (aluminum); 3.0 x metal thickness (coated steel) | No cracking or adhesion loss | No cracking or adhesion loss |
| Salt Spray Resistance | ASTM B117: 5% salt fog @ 95˚F / 35˚C | None or few #8 blisters; > 1/16” scribe creep average; Passes 4,000 hrs | None or few #8 blisters; > 1/16” scribe creep average; Passes 1,000 hrs. |
| Humidity Resistance | ASTM D714, ASTM D2247: 100% relative humidity @ 95˚ F / 35˚C | Passes 4,000 hrs; None or few #8 blisters | Passes 1,500 hrs; None or few #8 blisters |
| Exterior Exposure (10 Years @ 45° South Florida) | ASTM D2244, ASTM D4214 | Max. 5 fade; Max. 8 chalk | Max. 5 fade; Max. 8 chalk |
| Acid Resistance | ASTM D1308: 10% muriatic acid – 24 hours; 20% sulfuric acid – 18 hours | No effect | No effect |
| Acid Rain Test | Kesternich SO2, DIN 50018 | 15 cycles minimum; No objectionable changes | 15 cycles minimum; No objectionable changes |
| Alkali Resistance | ASTM D1308: 10%, 20% NaOH, 1 hour | No effect | No effect |