Hi! I've been looking at this forum for a while now, but I'm new to process of making a helmet and not really familiar with any of the real technical terms involved. I just got my first resin cast from ebay and there is a hard white thing inside the gray resin cast. I haven't seen this in any other user's first helmets and was wondering if I am supposed to remove this and if so how I should?
Beyond this, the forum has been a tremendous help on how to make this and I can't wait to start into this process!