Small bottled paints and tools must be in major checked luggage.Goes for putties–no thinners.
Paints and aerosols are considered HAZMAT (Hazardous Material) and the only way you can ship it is via UPS-Ground. USPS, FedEx and the rest won’t touch the stuff.
On a slightly related subject, if you carry your tools or buy some new ones and plan to transport them home via a commercial air-carrier; best pack them in your CHECKED LUGGAGE or even better just box it up and mail it via USPS. I have had some heated discussions with TSA and Greyhound Bus rent-a-cops about what constitutes a “weapon”. It seems that something as iniquitous as a tent stake or screwdriver can be construed as a deadly weapon in their eyes. Heck, anyone can take an ordinary set of car keys and inflict grievous body injury.
Radarider