Sarah, hopefully you will never have to strip a model again but there are far less damaging ways to strip plastic than airbrush cleaner, likely lacquer thinner. 90% Isopropyl Alcohol will remove most paints from plastic without damaging the plastic. Find a suitable container cover the model with alcohol and let it soak. The older the finish the longer it must soak. A soft nylon brush can be used every couple hours to help the process along. Sodium Hydroxide (lye) is also good for removing paint. Today Sodium Hydroxide is most often used as a drain cleaner. I like it over Alcohol as it is not flammable. I use safety goggles as it could damage your eyes if it were to splash, though at this dilution you would have plenty of time to rinse them thoroughly. Also use gloves your hands can stand a bit of exposure but it will dry and chaff them. I use a cup of S.H. crystals in about a gallon of water. I have used two cups but not much stronger if you mix it too strong it can generate enough heat when you soak your item to warp the plastic. Mix the solution with warm not hot water. I use an old plastic 5 gallon (19 liter) pail, filled about 3/4 full, that sheet rock mud came in. It has a snap on lid and I have been using the same bucket full of stripper for years. I noticed you are in Europe and modeling US trains. Did you grow up in the US ? j
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