I have 2 ply epdm membrane that is calendered, wound up into a cart separated by a liner.
Coming out of the cart/liner, one ply is always less tackier than the other
It's as if one of the ply looses tack? Liner is the same on both sides.
The gum properties are exactly the same right out of the...
Looking at mixing graphs, the banbury ram goes up during a batch. What is the purpose of raising the ram instead of just continuing the mix with the ram down? Will this allow volatiles or moisture to escape?
