Corrosione Plastico dei Soldatini da Collezione

Swelling, brittling, discolouration, depolymerization, dissolution, e disintegration of thermoplastic soldatini e modellini caused by ultraviolet radiation ed oxygen

Brittle e broken legs of a Timpo Indian

Miniatures e scale models made of thermoplastics like polyethylene / polythene (PE) e polypropylene (PP), o polycarbonate / acrylonitrile butadiene styrene (PC/ABS) may be damaged by ultraviolet radiation ed oxygen to such an extend that they become glassy e may disintegrate when touched. The legs of the antique, over 30 years old, Timpo Indian pictured above, spontaneously fell apart when the miniature was picked up. Upon closer inspection e careful bending of the broken parts, the right leg snapped just above the boot. The legs pictured to the left are from a similar Timpo Indian, but they show no signs of corrosion yet. These legs react elastic, they deform under stress, e return to their original shape when the stress is removed.

Plastic corrosion of soldatini typically results in the destruction e loss of component parts o entire figurines made of PE, PP, oder PC/ABS, because thermoplastics cannot be repaired con glue. Soldering con a hot air pencil is an option, but proves impractical when the broken parts are too small to handle.

Examples of Brittleness, Breakage, e Disintegration of Plastic Miniatures

The process of plastic corrosion may be slowed by protecting the soldatini from ultraviolet radiation, but it cannot be stopped entirely. Highly sought-after antique soldatini are especially at risk, they may fall apart one day upon the slightest touch. Painted e varnished plastic soldatini may be better protected from the corrosive effects of oxygen than unpainted soldatini.

Metal soldatini suffer comparable damage from the effects of peste dello stagno.

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Per ulteriori informazioni, per favore contatta la redazione di Rivista Military Miniatures nel Miniatures Forum.

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