Enter your observations
Use measurements you can verify. Unknown or unreadable details can be left unspecified where the tool allows it.
Record changes you have already observed. Do not bend the object to see if it breaks, sniff deliberately, rub the surface, or create dust to test it.
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How to use this tool
- Tick only condition changes you can already observe; never flex, rub or damage the object to test it.
- Record the storage environment and whether the object touches neighbouring items.
- Use the score as a priority guide, then follow the handling suggestions and document the condition.
- Seek a qualified plastics conservator for active deterioration, fragments, exudate or objects of significance.
What the result means
Plastics can deteriorate in different ways depending on polymer, additives, manufacturing process, past exposure and storage. Cracking, tackiness, warping, powdering, exudate, fragility and transfer stains can indicate that an object or its environment needs attention, but no one sign uniquely identifies a plastic or its chemical hazards.
The weighted checklist prioritizes conservation attention. It is not a toxicology score or a validated prediction of failure. Recommendations focus on low-risk actions: document changes, reduce handling, avoid heat and direct light, provide support, and prevent damaging contact with neighbouring objects.
Limits and good practice
Do not flex, rub, scrape, heat, chemically clean or deliberately sniff deteriorating plastics. Avoid adhesive labels and contact materials that may stick. Powdering, exudate or strong degradation should prompt minimal handling and advice from a plastics conservator; isolation methods depend on the material and should not trap unstable objects in unsuitable sealed enclosures.
References and further research
Frequently asked questions
What should I do first if old plastic is powdering?
Minimize handling, avoid disturbing residue, support the object and seek conservation advice. Do not rub or brush powder away.
Does sticky plastic mean it is toxic?
Not necessarily. Stickiness can be a deterioration symptom but does not identify the polymer or establish a toxic exposure. Avoid contact and seek expert advice.
Should I put a deteriorating object in an airtight bag?
Do not assume a sealed enclosure is appropriate. Materials and degradation products vary; use a conservator’s advice on isolation and ventilation.
Can I use household cleaner or alcohol on the surface?
Avoid chemical and abrasive cleaning unless a conservator has specified a safe method for the exact material.
Does a strong odour identify cellulose acetate or another plastic?
No. Do not deliberately smell an object; odour is nonspecific and should be recorded only if already noticed incidentally.
When is professional help especially important?
When the object is powdering, exuding material, crumbling, actively cracking, sticking to neighbouring objects, or is of substantial historical or monetary significance.