What color is the extruded board

Extruded polystyrene board is a cubic, B1 grade flame-retardant extruded polystyrene board, B2 grade flame-retardant extruded polystyrene board, and ordinary extruded polystyrene board.

1. Check if it is flame retardant and the flame retardant level

2. Depending on the type of extruded board, the brand and type are also different. The color of the extruded board is not fixed, because the extruded board can have pure polystyrene particles or powder directly foamed and extruded, or can be melted by recycled waste foam board or plastic to make recycled materials. The composition of such recycled materials is relatively complex. Generally speaking, common colors include white, light blue, gray, yellow, etc.