Polyethylene blend composition

A peroxide-curable polyethylene blend composition comprising a blend of constituents (A) and (B) that contains constituents (C) and (D):

• (A) a crosslinkable low density polyethylene characterized by a melt index (190° C., 2.16 kilograms (kg), ASTM D1238-04, “melt index (I2)”) of 1.50 to 2.49 grams per 10 minutes (g/10 min.) (“crosslinkable LDPE (A)” or “constituent (A)” or “(A)”);
• (B) a crosslinkable low density polyethylene characterized by a melt index (I2) of 5.0 to 25 g/10 min. (“crosslinkable LDPE (B)” or “constituent (B)” or “(B)”);
• (C) an organic peroxide that is dicumyl peroxide;
• (D) a propenyl-functional coagent that is 2,4-diphenyl-4-methyl-1-pentene or 1,3-diisopropenylbenzene;
• and constituent (E) antioxidant that is 2,2′-thiobis(2-t-butyl-5-methylphenol;
• wherein concentrations thereof are:
• (A) is 89 to 61 wt % weight percent (wt %), (B) is 10.1 to wt %, (C) is 2 wt %, and (D) is 0.23 to 1.0 wt %, all based on total weight of the peroxide-curable polyethylene blend composition.