Removing dried-out spilled yellow part of resin off rtv molds?

[GuntahKela]

So, without noticing, some of the resin yellow part was spilled over my RTV molds. When this dries-up, it sticks to the RTV, and the only way to remove it is by ripping it out, along with a chuncks of the RTV attached to it. I do try picking it out, but I can only do so much. Is there a way to disolve it out without ruining my molds?

 

[Sidewinder]

Maybe fresh yellow part would work as a solvent?

SAS

 

[KingNothing]

Sometimes when I have had problems with non curing parts, I'd pour a small amount of resin mixed perfect from a new batch and let that adhere to the crappy parts, and it usually cleans up well. MIght work here too?

 

[micdavis]

If it's sticking to the RTV that hard, the rubber has gone bad. Or you have a really bad batch of resin.

It shouldn't stick at all.

 

[Sporak]

I use packing tape to clean my molds.
Stick it onto whatever remnants are there and peel off...it usually cleans them real easy.

 

[Darth Clouds]

So, without noticing, some of the resin yellow part was spilled over my RTV molds. When this dries-up, it sticks to the RTV, and the only way to remove it is by ripping it out, along with a chuncks of the RTV attached to it. I do try picking it out, but I can only do so much. Is there a way to disolve it out without ruining my molds?

How about using acetone? Just a thought.

 

[PTK]

How about using acetone? Just a thought.

acetone should work, but is pretty bad for the mold, try using 99% alcohol (or 91% if you can't find the 99) first, just pour it into the mold, and use something like a cheap chip brush to gently scrub out the dried resin. Then if that doesn't work, give acetone a shot, but like someone said above, nothing should really stick to rtv, except rtv so your molds might be beyond saving

 

[GuntahKela]

I try the acetone, but I already tried the goof-off remover and no luck. I getting ready to mold again. We will see how the former goes.