from what I gather theres been some kind of tightening on items with any kind of distillates being shipped. Even if not flammable etc, if it's got a solvent type chemical in it we may encounter probs. I've been finding it more of late, with shipments meant to be taking 4-5 days taking up to around three weeks.
I was thinking of going over to TNT for some shipping but they wanted samples and meetings to discuss products being shipped, even for car cleaning stuff that may contain some kind of chemical or another..... I'm getting more questions from Fed- Ex if I want to make a shipment, and USPS, which I've never had a problem with, I'm finding stuff getting stopped and held in customs for no apparent reason even though I have various codes etc so that they can look up the company and assign any charges quickly and directly.
Maybe I'm just having a bad run but I've been noticing this more frequently over the last year.
Cheers.