Optiflows® are injection moulded with virgin, food graded and optionally pigmented polyethylene (HDPE). Plastic Frost guarantees that every Optiflow® will be free of material and manufacturing defects for a period of at least two years after date of purchase or they will be replaced.

Colouration and/or the application of a logo is possible on demand.

The material complies to safety regulations according to guideline 10/2011. Manufacturing complies to Direction EU Nr. 2023/2006. The product is traceable according to EU guideline 1935/2004. Migration tests have been performed according to EC regulation 97/48/C.

When building a pallet, it is recommended to place a spacer between the pallet and the first layer of cartons in order to optimise the flow of air. Subsequently, a spacer is placed each time between two layers of cartons.

If the size of the cartons allows this, it is best to maintain some sideward space between the cartons. Finished stacks can be stabilised with one or more bands. Do not wrap with film before the desired temperature is reached, as this will impede the flow of air.

The maximum bearing capacity of the spacers is 7500 kg at a temperature range between minus 60 to plus 80 degrees Celsius.

The design of the spacers provides the user flexibility with regards to the arrangement of pallets in the wind tunnel, as the flow of air works from four sides. In general it is recommended to limit the space around the pallets, in order to create turbulence around the cartons.