Flies slide down hook

Seems to happen more often than it used to. 

I tie simple hackle streamer type flies and they fall apart/slide down the hook after only moderate use.   

Can't find a lot of information/solutions on it so far.  

Usually use 3/0 Ultrathread for biggerish flies.  Is there a wrap technique that will help that I'm missing?  Add wire to secure it?  I haven't used wire in a long time as I just use a beadhead that adds enough weight for most situations. 

TIA. 

The waxed thread is okay but you might want to add more wax to it. Tying on less material at a time helps too. I don't worry about making my flies too durable, sometimes the first pike will rip up a new fly and sometimes I'll catch 4 or 5 on the same fly. 

Thanks for the replies folks.  Might take a look at the 6/0 thing.  I look for waxed thread so that should take care of it. 

It really seemed to not be as much of an issue but maybe I'm getting lazy with how I finish.  

Might also look into using less materials or tying one material down at a time.  

The 3/0 may be part of the problem. The thicker thread may not bite down into the materal enough. I tie a lot of Clouser Minnows with bucktail for bass and pike and use 6/0 or 140 denier threads. Also tie Clouser Half and Half that has a saddle hackle wing. You can also wax the thread to help grab the material. Using head cement between tying steps is an option but you have to wait for it to dry. There are tons of tying videos online. You may be able to find something specific to hackle wings.

might try wrapping and cementing some chenile, if you're not worrying about bulking up the fly a little, could add a little flash of color

Yup, wrap the hook shank down and back, dab a little head cement on and tie away! If you still have issues or are trying not to weight down a dry fly too much, take a jeweler's file and hit two sides of the hook shank to rough it up a little so the thread has something to bite on, then wrap the shank and tie your fly. Hook finishes today seem to be very slippery and a lot of times thread alone isn't enough to prevent slipping. Good luck!

Like Duke, I wrap the hook shank down and back, then put some head cement on and put my first layer of hair on before the cement dries if I can. Still get some that after a bunch of fish they start to slide a bit, but not usually. 

Its always possible to get a bad batch of head cement.  Might be more thinner than resin.  May want to tie some more with a different bottle of cement.  If that cures it, touch up the flies made earlier.  

I tied up a bunch of flies for white bass this Spring and they stood up to the abuse of unhooking many fish a day. I pre wrapped the entire hook shank from the eye down to the start of the bend and then back up to the eye. Then I dipped a tooth pick into my head cement and coated that under wrap thoroughly before I began laying on my hair and tinsel.

Yeah the head cement, glue etc. don't hold if in water for enough time. 

Thanks though. 

they sell a glue for tying flies. one little drop should take care of that