Peridium Hybrid (polyester/epoxy) powder coatings offer excellent application and performance characteristics. Peridium's tightly controlled particle size distribution provides extremely good first pass transfer efficiencies and edge coverage, along with the smoothest film available. These coatings exhibit good adhesion and resistance properties, offering an economical alternative to epoxies. Hybrid powders will have limited exterior exposure due to the epoxy component, whereas slightly improved overbake resistance to yellowing is found in the polyester component.
- Recommended cure schedule is 10 minutes @ 390°F, peak metal temp.
- The cure range for Hybrid powder is from 20 minutes at 350°F to 7 minutes at 400°F peak metal temperature. Faster cure formulations are available.
Cured Film Properties (properties are typical):
PCI Powder Smoothness Rating ................8-9 (high gloss)
Specific Gravity (ASTM D792) .......................1.2 to 1.8
Adhesion (ASTM D3359) ................................5B (100%)
Gloss (ASTM D523) ...........................................10-99
Pencil Hardness (ASTM D3363) ..................H-4H
Impact (ASTM D2794) .....................................160+ inch lbs.
Flexibility (ASTM D522) ...................................1/8 inch – No fracturing
Humidity (ASTM D2247) ................................1,000+ hours
Salt Spray (ASTM B117) ..................................1,000+ hours
Storage and Handling: Peridium powder coatings should be stored at normal room temperatures and humidities (less than 80°F and 50-60% RH). Shelf life will be approximately 6 months to over a year depending on storage conditions. Always rotate inventories to ensure trouble-free powder application. When storage conditions are not the same as the application area, allow a 24-hour acclimation period within the application area to prevent moisture condensation in the powder. Always protect virgin and reclaimed powder from excessive heat and humidity.
Industrial Hygiene: Powder handling should always be done in conjunction with proper dust collection and personal protective equipment. Please refer to the Material Safety Data Sheet for more detailed information.
