Low sink marks and excellent surface appearance reinforced polyamide compositions

A resin composition comprising:

• a) about 20 to about 50 wt-% of at least one amorphous semi-aromatic polyamide selected from the group consisting of poly(hexamethylene isophthalamide/hexamethylene terephthalamide);
• poly(hexamethylene isophthalamide/hexamethylene terephthalamide/4,4′bis(cyclohexyl)methane isophthalamide/4,4′bis(cyclohexyl)methane terephthalamide);
• poly(hexamethylene isophthalamide/4,4′bis(3,3′-dimethylcyclohexyl)methane isophthalamide/4,4′bis(3,3′-dimethylcyclohexyl)methane terephthalamide), poly(hexamethylene isophthalamide/hexamethylene terephthalamide/4,4′bis(3,3′-dimethylcyclohexyl)methane isophthalamide), poly(12-amidododecanamide/4,4′bis(3,3′-dimethylcyclohexyl)methane terephthalamide), poly(2,2,4-trimethylhexamethylene terephthalamide), poly(hexamethylene isophthalamide/hexamethylene terephthalamide/3-methyl-3,5,5-trimethylcyclohexyl isophthalamide/3-methyl-3,5,5-trimethylhexyl terephthalamide), and poly(caprolactam/2,2,4-trimethylhexamethylene terephthalamide/hexamethylene terephthalamide);
• b) about 10 to about 40 wt-% of at least two semi-crystalline polyamides, b1) and b2), wherein b1) is poly(hexamethylene adipamide) and is present in an amount from about 5 to about 20 wt-%, and b2) is selected from the group consisting of;
• poly(hexamethylene sebacamide);
• poly(hexamethylene dodecanoamide);
• poly(decamethylene sebacamide) and combinations thereof and is present in about 5 to about 20 wt-%;
• and
• about 10 to about 70 wt-%, of at least one glass reinforcement agent,
• wherein the weight percentages are based on the total weight of the resin composition.