What is the best stuff to use on alum A/N fitting to stop them from gauling up when you tighten them,so when you try to remove it don't pull the threads.I'm talking pipe thread side of the fitting JOHN SR

I don't do it for a living, but have good success with loctite or permatex with PTFE.

I use a small dab of Permatex with PFTE also, no leaks. Brian

but do you have problem with them gualding when you try to remove.

i use 2 types depending on what im doing,,on steel i use this ..
http://www.ebay.com/itm/Gasoila-1-pt...item3a66568bd9

on aluminum..http://www.ebay.com/itm/Gasoila-FasS...item3a66568bcd

i use loctite pts,i have not had any galling.

I use ARP thread sealer on the pipe side and a little anti-seize on the AN side. Never any problems.