Supra HD
System Overview
Supra HD coil coating system manufactured and distributed globally by Continental Coatings Inc. and Yung Chi Paint and Varnish Manufacturing Company Ltd., is a High Durability Polyester (HD) coil coating system engineered for interior and exterior applications that require long lasting performance and excellent economics. Supra HD system can be applied single coat or as a two coat system depending on end use requirements and application specifics. Supra HD system is formulated with a proprietary polyester resin polymer, which is economical, U.V. and weather resistant, and has primer like adhesion performance and a tough scratch resistant surface. Supra HD may be applied singlecoat or over the Universal PU-11 High Molecular Weight Urethane Primer or PU-30 High-build Urethane primer systems for extreme environment and long service life product applications.
Application Parameters
Supra HD system is designed for trouble free high line speed coil coating line application and has been run worldwide under a very wide range of application parameters and substrate conditions. Standard topcoat DFT is .60-.70 mils, however, custom low film and low temperature cure systems are available. Supra HD was formulated to provide improved overall performance over regular polyester systems and very good stain, scratch, mar and scuff resistance, and is flexible enough for most tough fabrication applications.
Commercial Uses
Supra HD system can be formulated in standard, medium, textured, and low gloss / low sheen finishes and supplied in a very wide range of colors and effects. This economic coating is warranted for exterior use and can be applied to a variety of adequately cleaned and treated metal substrates including: Hot Dipped Galvanized, ZnAl, Galfan®, ZAM®, Aluminum, and Stainless Steels. Supra HD is formulated with an excellent balance of flexibility and hardness but can be custom modified for specific applications that require above average physical property performance. Supra HD system is ideal for many residential building product polyester applications when improved performance is required. Typical end uses include: high performance rainwear, valleys, soffit, door product accessories, high-end door products, and light gauge agricultural sheeting and transportation products.
High Durability Polyester Coil Coating System
| APPLICATION | ||
| SPECIFICATIONS | TEST | RESULT |
| Primer | Singlecoat, or PU11 HMW PU, PU30 High Build PU | |
| Substrate | Aluminum, HDG, Galvalume®, ZAM® | |
| Pretreatment | Standard clean and treat | Chrome or non-Chrome |
| ASTM D 4138 | Dry Film Thickness | Top coat: 0.5 to 0.8 mils Primer: 0.0 to 0.3 mils Total system: 0.5 to 1.1 mils |
| ASTM D 4212 | Viscosity (No. 4 Zahn cup) | 25 to 35 seconds |
| ASTM D 1475 | Weight Per Gallon | 9.0 to 12.0 Pounds Per Gallon |
| ASTM D 2697 | Solids Per Volume | 48 to 58% |
| ASTM D 2369 | Solids Per Weight | 55 to 79% |
| Reducing Thinner | Reducing Solvent | Aromatic |
| ASTM D 3960 | VOC (Theoretical) | 3.0 to 4.0 Pounds Per Gallon |
| Clean-up Solvent | Aromatic/Ketone | |
| Coating Mileage | 1069 to 1176 Sq. Ft. / Gallon | |
| Peak Metal Temperature | 420 F to 465 F | |
| TECHNICAL DATA | ||
| SPECIFICATIONS | TEST | RESULT |
| ASTM D 523 | Specular Gloss at 60 | 6 to 85 |
| ASTM D 3363 | Pencil Hardness | F TO 3H |
| ASTM D 4145 | T-Bend | 0T to 4T with no loss of adhesion |
| ASTM D 5402 | Solvent Resistance (MEK Rubs) | 100 + |
| ASTM D 3359 | Cross Hatch Adhesion | No loss of adhesion |
| ASTM D 2794 | Reverse Impact | Galvalume or HDG: 3x metal thickness inch-pounds, no loss of adhesion Aluminum: 1.5x metal thickness inch-pounds, no loss of adhesion |
| ASTM B 117 | Salt Spray Resistance 1,000 hrs. Salt Spray Resistance 2,000 hrs. | Galvalume or HDG: Creep from scribe < 1/8 inch (3mm), none or few #8 blisters Aluminum: Creep from scribe < Creep from scribe <1/8 inch (3mm), few #8 blisters |
| ASTM D 2244 ASTM D 4214 | South Florida Exposure | Color: No more than 5 (E) Hunterunits at 90 vertical angle and 7 (E) unitsnon vertical Chalk: Rating no less than 8 at 90 angle and 6 at non vertical angle Film Integrity: 15 years, no blisters, peeling or cracking |
| ASTM D 870 | Water Immersion 100 F 168 hrs. | No field blisters with minimal color change |
| ASTM D 1308 | Chemical Resistance (15 mins.) | No significant color change (color dependent) |
| ASTM E 84 | Flame Spread Classification | Class I or A |
| ASTM D 968 | Abrasion Resistance | Total Sand = 35 +/- 5 liters (Dft dependent) |
|
|
|
|
 |
|
|
|
