Conserving Plastic Nostalgia: International Guidelines for Storing Vintage PVC and ABS Action Figures

21 October 2026

Vintage action figures made of PVC and ABS are cherished by collectors, but these toys are also vulnerable to irreversible degradation over time. Now, conservators from major institutions worldwide are issuing strong new guidance on the stable, low-humidity, dark environments needed to prolong plastic artifact lifespans. While not a single global binding standard, the converging recommendations are the clearest set of guidelines to date for collectors to follow.

Why Vintage Plastic Figures Need Advanced Care

Many action figures combine rigid ABS for their forms with soft, flexible PVC for joints, packed clothing, and accessories. All plastics age, but PVC tends to degrade first. Its plasticizers, which keep the plastic flexible, can migrate to the surface over time, leaving it tacky and prone to staining. The plastic itself also becomes brittle, cracking if deformed. An schematic diagram in a 2024 International Journal of Conservation Science review direly labeled this "terminal stage".

Soft PVC parts are particularly vulnerable, as the plasticizer begins to leach as soon as the figure enters the market. Prolonged deteriorating, worsened by temperature and humidity changes, will irreversible age and ruin even rare action figures in decades.

The International Guidelines

Conservators across institutions now broadly agree on the key factors to maintaining PVC and ABS, even among decades-old action figures:

Cool, stable environment, 18–20°C/64-68°F. The Western Australian Museum recommends 13–18°C (55–64°F) to slow aging. But all agree on avoiding extremes and swings.

Keep RH steady and moderate (~30–50%). The Canadian Conservation Institute and Museums Association see low RH as best. But the key is minimal fluctuation.

Limit exposure to both. The Canadian Conservation Institute favors oxygen-free storage. The Museums Association likewise. Light should avoid UV.

Collectors should always wear nitrile gloves, and stead link figures for transport. Avoid PVC and rubber bands; use polyester sleeves, polypropylene or glass storage boxes with silica gel desiccant.

A 2017 New Zealand museum blog summed it up: "Shield the surface of plastics from heat, light, oxygen, and humidity—any of which can degrade it."