Hi everyone, thank you all for sharing your knowledge and pointing me in the right direction so I could narrow down the issues!
I took a good ten minutes looking inside the head today, it appears to be weaved in like was mentioned. Though there seemed to be some pieces that looked suspicious so maybe there was a little re-hair work like taffeta mentioned.
The hair was most certainly tasted with show sheen even if she back peddled on that because the hair is so slippery. Based on the replies here and doing a little googling about silicone based hair products that it is going to take a while to clean out.
I felt the inside more and it seems like the stickiness is more that just at the hair line. It's around the head and body inside. I guess I'll be doing some insane cleaning and giving Sunburst some space to breath. Though I can't be entirely sure if the show sheen went down into head.
Again thank you everyone for coming in and sharing your tips and ideas! The knowledge of our community always amazes me