>>>The 1/8" gap you are talking about is actually pretty easy to fill to perfection and it doesn't require lots of sanding.  In fact, it will hardly require sanding any if you use this technique.<<<

 

Hello Dan,  thanks for the great answer.  I have just 3 questions…. What is the pigment you are using, where do you get it, and can a paste wax be used for mold release?