You can use some scents in hot plastics, Do it has a few on its site that are compatible. You cannot use anything that has water in it. If I was 95 per cent sure that a specific scent was water free/ I wouldn't use it. Too dangerous period. Besides you can always put your baits in a bag and add gulp to them. Tom was quicker on the trigger than I was but end results are same. Oh yeah, welcome to the site