Ok, Well normaly when I remove any type of lacquer,shelac,varnish, paint etc..... I either use Aircraft Remover my first choice since I have used it since 1988 and have lots of experince with it or ZipStrip or Ez-Strip. In that order... Now Aircraft remover starts to work almost as fast as you put it on in some cases and it is nutralized with regular water for easy clean-up. Well my Pole Barn whichis 80X80 is metal and has concrete floors, uninsulated and unheated.It is 15Â°F outside right now. So I am useing the basement at my Parents house to strip my son's trumpet. So I went with a newer product that is suppossedly more environmentaly friendly and has no foul odors or vapors etc..... It is called Citri-Strip and it smells like orange oil but has the consistency of say hair conditioner. It says the product can take 30 minutes to 12 hours to work. Well after 3 hours and 37 minutes I can tell you that it has not softened the lacquer on myson's old Holton 602 at all. In fact I would say that it has done less then brite dip would have done in this amount of time!!!LOL I have stronger stuff that I brought in from outside so it could thaw out. Now the citri strip clearly states that Lacquer is one of the things it strips right on the front label. I am prepared to take it back tomorrow if it does not work. I am all for low odor and more environmentaly friendly but what is the point if it does not work at least as good as the old toxic stuff??? The stuff is not cheap either enough to do two or three trumpets will cost you $9. This will make the second of third time I have tried somethign that is supposed to be more friendly to the environment that has not delivered as promised results!Lacquer is fairly easy coating to disolve and or soften it is not that chemical resistant as far as coatings go!