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4/30/2013 5:23:54 AM EDT
I don't know what I'm doing wrong and I can't get the dam flash suppresor to stick. And yes I have read the entire 11 page thread. I've been using brake cleaner to clean the threadsand heating the barrel and the suppressor untill it is a blackish red hot. But its like when Iheat everything up the solder is dissapearing. What could I be doing wrong?
4/30/2013 6:05:25 AM EDT
[#1]
Quoted:
I don't know what I'm doing wrong and I can't get the dam flash suppresor to stick. And yes I have read the entire 11 page thread. I've been using brake cleaner to clean the threadsand heating the barrel and the suppressor untill it is a blackish red hot. But its like when Iheat everything up the solder is dissapearing. What could I be doing wrong?


I would not use brake cleaner! Try Acetone or denatured alcohol.

In addition, I'd try a mild acid to clean the treads of both the barrel & muzzle device (to remove any Parkerizing etc.)
4/30/2013 6:39:36 AM EDT
[#2]
Question? Did you heat the barrel before you screwed on the Flash hider?
4/30/2013 7:07:34 AM EDT
[#3]
What are you using to heat it with?  Also, some break cleaner leaves a residue.  Need to read the labels and pick one that does not leave a residue.  Acetone works also.  Use a paper towel to wipe off the threads and if it doesn't come off clean you need to clean some more.
4/30/2013 7:34:18 AM EDT
[#4]
You could be having multiple issues with your process :

- the barrel/threads could be dirty still - residue on them or not cleaned/scuffed up
- are you using an acid or flux to prepare the surface
- correct tools for the job
- too much heat or heat in the wrong place
- incorrect solder
- flash hider material

Soldering, brazing, welding, etc. are really an art form to get right. Like alot of specialty trades - alot of people think they can do it and maybe they can however to do it right ....
I would suggest practicing on something else first to make sure everything works together. Too much heat and the results can be undesirable.
4/30/2013 10:09:53 AM EDT
[#5]
Thanks guys I think the acetone did the trick!
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