Zotefoams products are manufactured using a truly unique process technology. This involves dissolving nitrogen gas into a plastic sheet at extreme pressures and temperatures. On releasing this pressure and temperature the gas increases its volume to such an extent that it expands the plastic into a foam.
The polymer is blended in-line and extruded into solid sheet form. This sheet is then crosslinked, a process that enhances material strength, durability and temperature resistance
The plastic slabs are loaded into a carriage system that feeds into high-pressure autoclaves where they are heated above softening temperature in an atmosphere of pure nitrogen. Final cooling retains the nitrogen in the plastic.
The nitrogen charged slabs are loaded into a low-pressure autoclave where the material is again heated above its softening temperature under moderate gas pressure. When this pressure is removed the nitrogen expands, physically foaming the soft plastic in a uniform manner.
