Peeling resin?

El Gato · Post by **El Gato** » Sun Dec 02, 2012 10:21 pm

Eons ago I got PNT's Mini Mechas' Avenger Class model. This morning I started working on it and the resin on the engines and torpedo pod is coming off in layers. As first they were thin sheets so I thought it was leftover mold material, but now the sheets are getting thicker. Does anyone know what's going on here?

Lt. Z0mBe · Post by **Lt. Z0mBe** » Mon Dec 03, 2012 12:48 am

I've never had it happen with resin but I have tried some of the lesser epoxy putties before discoveries Aves. When I sanded them, chunks would come out of them. Why? They weren't mixed properly. Why was that? The stuff was old and unable to mix properly by then.

It's probably a lost cause at this point, I am afraid. You may try placing it with some gentle heat or burying in some kitty litter (never tried that with the litter, but it's an experiemt I want to see someone try) to mop up any weeping. Then you may be able to re-sculpt the problem areas.

I hope this helps.

Kenny

kenlilly106 · Post by **kenlilly106** » Mon Dec 03, 2012 6:53 pm

My guesses are either an incomplete mix or maybe your kit was poured using the leftovers from other batches and they gradually filled the mold over a few days or hours?

Only thing I can think of to try and fix it is to get some thin CA and glue all of the layers together and then putty the surface and get the profile right.

Ken

El Gato · Post by **El Gato** » Thu Dec 06, 2012 3:44 pm

Thank you both for the comments and suggestions. I'm going to try these one at a time and hopefully something works.

Stu Pidasso · Post by **Stu Pidasso** » Thu Dec 06, 2012 4:06 pm

Any chance on a pic or two?

Joseph Osborn · Post by **Joseph Osborn** » Thu Dec 06, 2012 4:17 pm

I think Ken nailed it.

I use small plastic cups for casting, and any excess resin that is left in the cup gets dumped into another cup. Over the course of a little time, that excess resin from all those pours makes a nice little chunk of resin. I once thought it would be a good idea just to use that chunk of resin in my lathe to make things. It doesn't work all that well in practice, because I could peel that chunk of resin apart just like a flaky biscuit. Unless the resin is "green" and not fully cured, any resin added to it won't chemically bond and you basically have separate pieces. That can be disaster if you're trying to use that technique to cheaply fill a big mold!

El Gato · Post by **El Gato** » Mon Dec 10, 2012 12:11 pm

Jimi - I'll try to take a couple of pics tonight or tomorrow and post them.

UPDATE: I will be getting replacement parts soon, so that's very cool