FC522 is a high-quality expandable polystyrene (EPS) product from Tabriz Petrochemical Company, part of their TPC Performance range. It is designed for applications requiring fast cycling and precise molding capabilities, particularly in products that demand a superior surface finish and structural integrity.
 
Product Description
Type: Expandable Polystyrene (EPS)
Characteristics: FC522 consists of spherical polystyrene beads that contain pentane as the expansion agent, enabling it to achieve low densities without forming lumps during pre-expansion. This grade is noted for its fast cycling and waterproof properties but is not suitable for fire-retardant applications.
Bead Size: With a small bead size of 0.3-0.5 mm (90% by weight), FC522 is particularly suited for thin wall shape molding, facilitating better mold filling and surface finish.
 
Typical Applications
High-Density Block and Shape Molding: Ideal for applications requiring high-density EPS blocks and intricate shape moldings with wall thicknesses less than 6 mm.
Packaging Solutions: Due to its mechanical strength and good mold filling properties, FC522 is extensively used in producing EPS foam packaging, providing protection and durability.
 
Handling and Storage
Packaging: FC522 is shipped in jumbo bags or octabins on wooden pallets (115cm x 115 cm), each containing 1000 kg of material. These containers are not weather or waterproof, necessitating indoor storage.
Storage Conditions: To maintain optimal material properties, FC522 should be stored below 20°C and processed within one month of delivery.
 
Processing Guidelines
Pre-expansion: Achievable at densities approximately 25 kg/m³ with discontinuous, state-of-the-art pre-expanders. Lower densities can be obtained by double pre-expansion or using optimized machines.
Molding: Can be processed in standard industry molding machines within a wide range of steaming settings. If a regenerative agent is used, it must closely match the pre-expansion density to avoid segregation during production.
Intermediate Aging: Recommended to last between 10 and 48 hours to achieve desired properties.
 
Typical Properties
Expanded Density: Ranges from 22 to 30 kg/m³, making it versatile for various applications.
Pentane Content: 5.2%, essential for the expansion process.
Residual Monomer: Less than 1000 ppm, ensuring the purity and safety of the material.
K-Value: 55, indicative of its thermal insulation properties.
 
Summary
FC522 from Tabriz Petrochemical Company stands out for its precision in fast-cycle molding and high-quality finish in EPS applications. Its small bead size and ability to form high-density products without lumps make it ideal for detailed and demanding applications in packaging and construction. Proper handling, storage, and processing guidelines ensure that FC522 maintains its quality from production to application, making it a reliable choice for manufacturers seeking efficient and high-performance EPS solutions.