The invention concerns compositions comprising (a) from about 20 wt % to about 80 wt % of a polymer component; (b) from about 10 wt % to about 70 wt % of a flame retardant component; and (c) from about 0.01 wt % to about 5 wt % of an acid component; wherein the combined weight percent value of all components does not exceed 100 wt %; wherein all weight percent values are based on the total weight of the composition; and wherein the composition has: (i) a thermal conductivity of at least about 1.5 W/mK for through plane thermal conductivity; (ii) flame retardancy of at least VI at 0.8 mm using the UL94 test standard; and (iii) melt volume flow rate of at least 10 g/cm3 using ASTM D 1238.