Ethylene-based copolymer and propylene-alpha-olefin-diene compositions for use in layered articles

An elastomeric composition comprising:

• from 1 to 99 parts by weight per hundred parts by weight rubber (phr) of a first propylene-α-olefin-diene (PEDM) terpolymer comprising 70 wt % to 92.5 wt % propylene, 7.5 wt % to 30 wt % a C2 or C4-C12 α-olefin, and 3.5 wt % to 20 wt % diene, said wt % based on the weight of the PEDM terpolymer, wherein the wt % numbers are uncorrected numbers wherein wt % propylene plus wt % C2 or C4-C12 α-olefin equals 100% and wherein the PEDM terpolymer has a Mooney viscosity (ML(1+4)) of 25 MU to 100 MU;
• and
• from 1 to 99 phr of an ethylene-based copolymer comprising 40 wt % to 95 wt % ethylene, 0.5 wt % to 10 wt % of one or more dienes, and 5 wt % to 60 wt % C3 to C12 α-olefin, said wt % based on the total weight of the ethylene-based copolymer, wherein the sum of the phr of the PEDM and the phr of the ethylene-based copolymer equals 100 phr.