Suspect it won't adhere to coated fabrics at all regardless of the time invested, so tent floors and rainflys aren't going to take the treatment. (Also don't want to inadvertently damage the DWR or waterproofing.) Tent canopies of netting and uncoated nylon will take it. Tyvek? I have no idea but don't see a value and conversely, it could kill a lot of beneficial bugs living at the soil surface while the mosquitoes wouldn't come in contact with it.