I was going to ask if that coating was common to all the machines; I have memories of opening a 512k with my dad and seeing a more plastic-like interior. 
Ah, I didn't realize Retr0bright had a forum as well. I signed up and posted a request to join that one too.
I was kind of upset that my results were so poor, and I messed up the case to boot. Once the machine was put back together and set on the table, I will say that it did look significantly better than before I started, so it wasn't a colossal failure. My next concern, however, is that the flaking coating is a danger to my logic board and/or analog board. With the heat inside the case, I think it's likely that flakes will float down... conductive flakes! So once I decide to take another stab at it, I am going to take steel wool to the inside of it and remove all the flakes. I don't want to risk an otherwise 100% working Plus.
Ah, I didn't realize Retr0bright had a forum as well. I signed up and posted a request to join that one too.
I was kind of upset that my results were so poor, and I messed up the case to boot. Once the machine was put back together and set on the table, I will say that it did look significantly better than before I started, so it wasn't a colossal failure. My next concern, however, is that the flaking coating is a danger to my logic board and/or analog board. With the heat inside the case, I think it's likely that flakes will float down... conductive flakes! So once I decide to take another stab at it, I am going to take steel wool to the inside of it and remove all the flakes. I don't want to risk an otherwise 100% working Plus.