Polymer composition with improved paint adhesion

A polypropylene composition (C) comprising:

• (a) 50 to 90 parts per weight of a heterophasic propylene copolymer (HECO);
• (b) 2 to 25 parts per weight of a plastomer (PL);
• and
• (c) 8 to 25 parts per weight of an inorganic filler (F);
• based on the total parts per weight of (a), (b) and (c);
• wherein the polypropylene composition (C) has an amount of xylene cold soluble (XCS) fraction of at least 22 wt.-%, based on the weight of the polypropylene composition (C);
• and
• wherein the intrinsic viscosity (IV) of the xylene cold soluble (XCS) fraction of the polypropylene composition (C) is not more than 3.4 dl/g,
• wherein the heterophasic propylene copolymer (HECO) comprises
• (a) 5 to 49 parts per weight of a first heterophasic propylene copolymer (HECO1) and
• (b) 51 to 95 parts per weight of a second heterophasic propylene copolymer (HECO2),
• based on the total parts per weight of the first heterophasic propylene copolymer (HECO1) and the second heterophasic propylene copolymer (HECO2);
• and
• wherein the second heterophasic propylene copolymer (HECO2) and the first heterophasic propylene copolymer (HECO1) together fulfil in-equation (I):
• MFR [HECO2]/MFR [HECO1]>1.0 (I);
• wherein
• MFR [HECO2] is a melt flow rate MFR2 (230° C., 2.16 kg) measured according to ISO 1133 of the second heterophasic propylene copolymer (HECO2) and
• MFR [HECO1] is a melt flow rate MFR2 (230° C., 2.16 kg) measured according to ISO 1133 of the first heterophasic propylene copolymer (HECO1).