An unsaturated resin molding composition comprising (a) an additive to prevent phase separation; (b) an addition polymerized polymer for low profile characterized as having a number average molecular weight above 50,000g/mole and existing as a dispersed phase in said composition, said polymer being selected from the group consisting of polystyrene, styrene-((meth)acrylic ester) copolymer, styrene-(conjugated diene) block copolymer, hydrogenated styrene-(conjugated diene) block copolymer, and a (meth)acrylate polymer containing no styrene; (c) a radical copolymerizable unsaturated resin selected from the group consisting of unsaturated polyester, vinyl ester resin, and vinyl urethane resin; and (d) a polymerizable unsaturated monomer; wherein said (a) additive to prevent phase separation comprises a reaction product of a functionalized polyether of a formula: R 1 -(OC δ H 2δ) x -(OCH 2 CH 2) y -W-φ-COOH with an aminic polybasic species having at least 3 primary and/or secondary amine groups per molecule and a number average molecular weight of from 100 to 100,000g/mole in a weight ratio of said R1-(OC δ H 2δ) x -(OCH 2 CH 2) y -W-φ-COOH:aminic polybasic species of 10:1 to 60:1, wherein: R 1 is a C 1 -C 36 hydrocarbyl group which can be a cyclic, branched, or non-branched alkyl; aryl; alkylaryl or arylalkyl, δ is 3 and/or 4, x is 10-60, y is 0-10, the -(OC δ H 2δ) and -(OCH 2 CH 2) repeat units can be in any order such as random or blocky and y must be less than x, W is an ester, imide, or optionally amide linking group that can optionally include a hydrocarbylene of 1-4 carbon atoms, especially 1 carbon atom, φ is an aryl group of 6-10 carbon atoms and said aryl group can optionally have substituent(s) which include linear or branched alkyl chains of 1-4 carbon atoms, halides, and/or-NO 2, and wherein said number average molecular weight is determined as set forth in the description. (a) an additive to prevent phase separation; (b) an addition polymerized polymer for low profile characterized as having a number average molecular weight above 50,000g/mole and existing as a dispersed phase in said composition, said polymer being selected from the group consisting of polystyrene, styrene-((meth)acrylic ester) copolymer, styrene-(conjugated diene) block copolymer, hydrogenated styrene-(conjugated diene) block copolymer, and a (meth)acrylate polymer containing no styrene; (c) a radical copolymerizable unsaturated resin selected from the group consisting of unsaturated polyester, vinyl ester resin, and vinyl urethane resin; and (d) a polymerizable unsaturated monomer; R 1 is a C 1 -C 36 hydrocarbyl group which can be a cyclic, branched, or non-branched alkyl; aryl; alkylaryl or arylalkyl, δ is 3 and/or 4, x is 10-60, y is 0-10, the -(OC δ H 2δ) and -(OCH 2 CH 2) repeat units can be in any order such as random or blocky and y must be less than x, W is an ester, imide, or optionally amide linking group that can optionally include a hydrocarbylene of 1-4 carbon atoms, especially 1 carbon atom, φ is an aryl group of 6-10 carbon atoms and said aryl group can optionally have substituent(s) which include linear or branched alkyl chains of 1-4 carbon atoms, halides, and/or-NO 2, and wherein said number average molecular weight is determined as set forth in the description.