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AR15.COM
12/17/2016 1:03:19 PM EDT
How many people have done a bedding job with JB Weld, Pros, Cons
12/17/2016 3:31:40 PM EDT
[#1]
I don't like JB weld itself but it'll work just fine. I find it to be brittle but boy it does work and lots of folks use it. Acraglass by Brownells is a better option and meant for the purpose so it won't fall victim to solvents used around guns. If you're just skim bedding then JB will do fine. Don't use the quick cure JB. It doesn't hold for squat. Make sure and give a good tooth to the substrate with a good low number abrasive (like 60 grit).
12/18/2016 2:55:58 PM EDT
[#2]
Devcon 10110 or nothing

JB is too runny and brittle, it shrinks with age as well
12/18/2016 3:30:47 PM EDT
[#3]
Brownell's Steel Bed for me.
12/19/2016 12:56:31 PM EDT
[#4]
Quote History
Quoted:
Devcon 10110 or nothing

JB is too runny and brittle, it shrinks with age as well
View Quote


This.
12/27/2016 11:25:55 AM EDT
[#5]
I've just started reading up on bedding and have read similar, and have always been told to you the right tools for the job.

I know there are lots of good choices for bedding out there, I would look into those.
12/27/2016 11:30:59 AM EDT
[#6]
Devcon for me. It is easy to work with, and you can make awesome seams with q-tips and WD-40 after it squishes out. It is also nearly indestructible as far as chemicals, and also mills easy. 
1/26/2017 10:47:19 PM EDT
[#7]
JB weld is ok for scope base bedding but not ok for action bedding. JB weld characteristically shrinks much more than the common bedding epoxys such as brownells acraglass, devcon, pro bed, marine tex. Stick with one of those, I am a big fan of marine tex and pro bed as i have had the best results using these. I also believe the consistency of pro bed is a little more forgiving for anyone new to bedding.