We would need to know the ingredients of Selleys RP7, to answer your question. Regardless, you need to see a doctor to evaluate your chest pain, which may or may not be related to the inhalation.
the contents of the can were a light penetrating oil and the propellent was butane. I was spraying a rusty fly screen and would have sprayed for about 1-2 minutes. I was outside and thought I would not be inhaling it, but I was obviously wrong as the symptoms developed a day later. I have been seen by a doctor, but he can't tell me how long it will take to resolve, I wondered if you had experience with this problem?
sorry my above comment was for my query....