Assess the type of change
- Does the tackiness become more noticeable as the temperature rises?
- Is the loss of sheen widespread ageing or local friction damage?
- Has colour transferred from a nearby dark item, or has the original colour changed?
- Is the surface already blistering, cracking or sticking to another surface?
What to do next
- Keep the item from contacting other items.
- Record the extent of the affected area in natural light.
- Limit treatment to low-risk surface dust removal.
- Seek a professional assessment if the cause is uncertain.
Avoid repeated scrubbing
Dye migration in patent leather often penetrates the transparent coating. Repeated cleaning may fail to remove it and can instead make the coating cloudy, tacky or cracked.