polystyrene eps including
1. A-Standard grade
2. B-High expansion grade
3.C-Fire retardant grade
4.D-Fast Cycling Grade
What is EPS?
E.P.S. (Expandable Poly Styrene) is a lightweight, rigid, plastic foam insulation material produced from solid particles of polystyrene. Expansion is achieved by virtue of small amounts of pentane gas dissolved into the polystyrene base material during production. The gas expands under the action of heat, applied as steam, to form perfectly closed cells of EPS. These cells occupy approximately 40 times the volume of the original polystyrene bead. The EPS beads are then molded into appropriate forms suited to their application. Products made from foamed polystyrene are nearly ubiquitous, for example packing materials, insulation, and foam drink cups.
How do we classify EPS?
Regular Grade:
Grade | Specification | Bead Size(Diameter) | Expandable Rate (one time) | Foam Density | Applications | |
A-Standard Grade |
| mm | Times | g/l |
| |
A-103 | 1.00-1.60 | 70-90 | 11-14 | Block and low density products | ||
A-104 | 0.85-1.25 | 65-85 | 12-15 | Products more than 12mm thick | ||
A-105 | 0.70-1.00 | 60-75 | 13-17 | Medium density packaging products | ||
A-106 | 0.50-0.80 | 55-70 | 14-18 | Products more than 8mm thick | ||
A-107 | 0.40-0.60 | 50-65 | 15-18 | Products more than 6mm thick | ||
A-108 | 0.30-0.50 | 35-50 | 20-28 | Moulding and special products i.e. headpieces | ||
What are the wild-spread applications:
Packaging: i.e.: Vegetable and fruit box, Fish box, Electronics packaging;New Building Material: i.e.: Sandwich panel, 3D panel, Brick insert, Insulated Concrete Foam (ICF)Plastic Foam Flotation: i.e.: FloatDecorating Material: i.e.: Cornices, Ceiling tiles, Articles in arts and crafts for advertisement and decoration;Full Mould Casting: i.e.: Protecting material: i.e.: Anti-freeze pad to cushion foundations of roads and railways in high cold region;Filter material: i.e.: Applicable in medium and small scaled water supply system;Other applications: i.e.: Applicable in seeding nurseries for hydroponics; Mixed with clay and cement to manufacture lightweight wall tiles and cement castings; As filling material for pillow……
