Plastic Aerosol Cans and Propellant Compatibility This paper was originally presented at the Aerosol & Dispensing Forum in Paris, France. Currently, liquefied propellants are mainly used with metal cans. Because European regulations will continue to evolve regarding aerosol products in plastic cans, Inventec Performance Chemicals decided to test compatibility between our liquefied propellants and plastic cans (supplied by Plastipak). To do this, we followed the standard FEA 603 (test of long term preservation and measurement of the loss of weight developed by the European Aerosol Federation FEA). We filled all the plastic aerosol cans with propellants such as hydrocarbons or hydrofluorocarbons (HFCs), seen in Figure 1. After the filling, we stored them at 20°C and 37°C in the light and in the dark. We regularly weighed all the cans. After six months of storage, we noted the appearance of the cans and some characteristics of the propellants such as purity, odor and residue. The first cans were filled with hydrocarbons because they are the most frequently used liquefied Fabien Marée R&D Manager Inventec Performance Chemicals propellants in Europe. There are many advantages to using these products in a formulation. Indeed, they are the cheapest liquefied propellants in Europe and their global warming potential (GWP) is around three (compared to HFC 134a, which is 1430). Thanks to their low densities, the manufacturer can reduce the necessary propellant weight. They have a good miscibility with many solvents (excepting water) and blending them allows one to work in a large Figure 1 Figure 2 Plastic cans filled with liquified propellants 24 Spray August 2016
Spray August 2016
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