Celt40
Member
I have cast some PA resin into the white plastic pipe used to run electric cable. Before i poured the resin into the tube, i rubbed the inside with Vasaline. I hoped that this would help with getting the blank out when cured. WRONG. They were that stuck that i had to cut the pipe to get them out.
What did i do wrong. What is the best way to prepare the insides of the tube?. Or is the plastic pipe not suitable. Will copper pipe be better?
What did i do wrong. What is the best way to prepare the insides of the tube?. Or is the plastic pipe not suitable. Will copper pipe be better?