Difference between Epoxy and Epoxy Putty?
Posted 22 May 2015 - 05:20 PM
Posted 22 May 2015 - 05:47 PM
I'll try and correct a few of your misconceptions.
Epoxy is a two stage liquid adhesive that must be mixed before application, and Epoxy Putty is a two stage solid adhesive that must be mixed before application.
If you are trying to integrate two Nerf ABS shells I recommend you pick up a tube of Marine epoxy putty and a vial of Methacrylate liquid epoxy. Marine putty is used on the external bond of the shell; you don't have to use Marine but I've found it is one of the easiest to apply and can be molded and shaped quite easily after both initial chemical mixture and by sanding it down after it has fully set. Methacrylate liquid epoxy isn't actually epoxy, but you'll find it branded and sold right along side them. Methacrylate adhesives actually chemically bond with the plastic shell and will actually outlive the ABS plastic, perfect for the internal integration bond. Methacrylates are commonly sold as "Plastic Bonder", the most popular brand is Devcon simply because almost all of their products are methacrylate; but always check the back of the package to make sure you have the right stuff.
Posted 22 May 2015 - 05:48 PM
EDIT: To be honest, just what Duke said.
Edited by Thorn, 22 May 2015 - 05:50 PM.
Posted 22 May 2015 - 08:43 PM
The liquid leaves a thinner coat the putty is used to fill gaps both can be sanded to get the finish you want. And since you can make a big block of the putty it works well for structural joints. Both can flake or break off if you don't prep the joint right.
I once used a tube of the liquid to fix the hinges on a laptop the next time i tried the putty the liquid seemed to do a better job but i had issues keeping it where i wanted it that is why i tried the putty the next time neither as far as i know have failed yet and that was several years now... The putty ended up taking longer to hold and i dont think it was ever as secure as the liquid the liquid ended up with the laptop working like new.
Edited by Lunas, 22 May 2015 - 08:44 PM.
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