Thank you both for your replies. Although, I have Shrink Rate values from the EPDM manufaturer, and they're the only one we'll be using, I guess my best best bet would be to make a test mold using the actual mold material and EPDM we'll be using a measure shrink rate from that, then adjust my...
I have to design a mold to be used in compression molding an EPDM part. My dilemma right now is figuring out how to adjust the mold cavity and core dimensions to account for both the mold material (Aluminum) CTE and part material (EPDM) shrink rate.
I have read various posts and literature...
