Moisture resistant
Hypos cardboard is fire resistant material and does not support the fire. Therefore, it is also used as a fire -retardant finish. It is customary to separate two types of this material, moisture resistant and ordinary.
Hypos cardboard is fire resistant material and does not support the fire. Therefore, it is also used as a fire -retardant finish. It is customary to separate two types of this material, moisture resistant and ordinary.