Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 47 users online :: 3 registered, 0 hidden and 44 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Google [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

How durable is bondo body filler?

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
Sponsored 
  • Author
    Message

How durable is bondo body filler?

Unread postAuthor: JDP12 » Wed Dec 28, 2011 2:43 am

Hey all- Workin on my pneumatic rifle, and tryin to decide what to do as a gun body. it's too complex to shape out of wood so I'm going to cast a body. What I'm wondering is how durable is bondo body filler in terms of threading say a screw into it? Could it handle a screw being threaded into the same hole repeatedly (for takedown) or would that just strip out?

Don't really have to worry about its "impact" resistance since i will be covering the outside surfaces with some sort of hard plastic for protection against knocks and scratches.
  • 0

"Some say his pet elephant is pink, and that he has no understanding of "PG rated forum". All we know is, he's called JSR. "
User avatar
JDP12
Major General
Major General
 
Posts: 1943
Joined: Fri Mar 30, 2007 8:34 pm
Reputation: 0

Unread postAuthor: wyz2285 » Wed Dec 28, 2011 5:16 am

Bondo usually breaks when screwed, but you can glue a bolt on the bondo body.
After it hardens, it´s kind hard to polish, but there are a good way to shape it: just before it reaches the hardest point, it´s very easy to cut, but does not stick any more, a great opportunity to give it a desired shape :P
  • 0

User avatar
wyz2285
Major General
Major General
 
Posts: 2244
Joined: Sat Mar 06, 2010 7:50 am
Location: Porto, Portugal
Country: Portugal (pt)
Reputation: 12

Unread postAuthor: evilvet » Wed Dec 28, 2011 5:56 am

I use a product called Builders Bog, not sure if it exists outside Oz. It is your basic two pack, matchbox of grey goop plus match head of red goop gives pink goop.

If you mix it right and let it cure properly you can drill it, tap it and it machines and polishes quite nicely.

Should work well for a stock / receiver type job.
  • 0

User avatar
evilvet
1st Lieutenant
1st Lieutenant
 
Posts: 266
Joined: Sat May 01, 2010 2:48 am
Reputation: 0

Unread postAuthor: Fnord » Wed Dec 28, 2011 3:10 pm

So long as you pre-drill the hole and use a very low thread count screw, (wood screws are probably best) it'll be fine. You can even get the fiber-reinforced bondo for extra strength, since it only costs a couple bucks more. I've fired cast slugs into a concrete wall at 300 fps and they chip around the edges but generally hold together well.
  • 0

Image
User avatar
Fnord
Major General
Major General
 
Posts: 2244
Joined: Tue Feb 13, 2007 9:20 pm
Location: Pripyat
Reputation: 7

Unread postAuthor: Sauerbraten » Wed Dec 28, 2011 4:44 pm

You could use threaded inserts in your casting, that way the threads aren't directly in the bondo and the force from the repeated screwing(lol) would be distributed to the casting more. Just a thought.
  • 0


Sauerbraten
Private
Private
 
Posts: 3
Joined: Fri Oct 28, 2011 6:51 pm
Reputation: 0

Return to Construction Materials/Ammo Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Yahoo [Bot]

Reputation System ©'