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

An elastomeric composition comprising:

• 5 parts by weight per hundred parts by weight rubber (phr) to 80 phr of a propylene-a-olefin-diene (PEDM) terpolymer comprising 55 wt % to 95 wt % propylene, 2.5 wt % to 40 wt % a-olefin, and 0.05 wt % to 25 wt % diene, said wt % based on the weight of the PEDM terpolymer, wherein the PEDM terpolymer has Mooney viscosity (ML(1+4)) of 5 MU to 90 MU, and wherein the PEDM terpolymer has a weight average molecular weight of 120,000 g/mol to 320,000 g/mol;
• 20 phr to 95 phr of an ethylene-based copolymer selected from the group consisting of:
• (a) a crystalline ethylene-based copolymer comprising 60 wt % to 95 wt % ethylene, 0 wt % to 10 wt % of one or more dienes, and 5 wt % to 40 wt % C3 to C12 a-olefin, said wt % based on a total weight of the crystalline ethylene-based copolymer,
• (b) an amorphous ethylene-based copolymer comprising 40 wt % to 59 wt % ethylene, 0 wt % to 10 wt % of one or more dienes, and 40 wt % to 60 wt % C3 to C12 a-olefin, said wt % based on a total weight of the amorphous ethylene-based copolymer, and
• (c) a combination of (a) and (b);
• 10 phr to 200 phr of a process oil;
• and
• wherein the elastomeric composition comprises:
• a green strength ranging from 0.4 MPa to 0.9 MPa;
• and
• a Mooney viscosity (ML(1+4)) at 100° C. from 50 MU to 115 MU.