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putty

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dgb
  • Member since
    February, 2017
putty
Posted by dgb on Monday, March 13, 2017 11:06 PM

I need a putty that has strong adhesion characteristics as well as is sandable. I am filling a shape like a plane fuselage with a localized indentation. Like a shallow dimple from the molding process. Cannot be drilled. Other than roughening the surface not much to wedge into at all. Almost need welding like model adhesives. Newbie at putty. Product that match needs from the myriad of putties out there for modelers?

 

  • Member since
    March, 2013
Posted by patrick206 on Tuesday, March 14, 2017 9:09 AM

I use Perfect Plastic Putty, Tamiya and red Bondo, depending on the job. For small fill areas like sink marks, be sure to add a little extra, to allow for shrinkage. Tamiya gives a good "bite," so it hangs onto the surface well.

Red Bondo I use for larger fill areas, it really adheres well and does not seem to shrink in my use.

  • Member since
    July, 2016
Posted by Johnny1000 on Tuesday, March 14, 2017 1:18 PM

Solvant based putty can shrink and crack, especially with a thick application.

Cyanoacrylate (superglue) has strong adhesion, can be built up to the appropriate depth with a kicker, and is sandable, especially before it fully sets. I'm no expert, but based on your description that's what I'd try. 

Cheers 

-J

 

 

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