Question on gas alarm

Over the years I have had all sorts of chemical set off the propane alarm. Those items have included hairspray, insect repellent, sulfurous emissions in Yellowstone, and caulk. The caulk was the worst. I used a large amount in the bathroom to add a slope to a small ledge. I had to disconnect the alarm for a great many weeks while it cured.

You may also get false alarms as the detector ages. The life expectancy of a propane alarm is about 5-10 years from the date of manufacture. Some seem to be overly sensitive or defective and give false alarms when they are relatively new.