profile spacer for insulating glass unit.

Spacer profile for a spacer frame which is to be installed in the edge region of insulating glass unit forming a space between glass sheets, comprising a profile body with a chamber (10) for accommodating hygroscopic material and at least a core seat (30, 36) intended to settle on an inner side of the moon in at least one side of the chamber (10), whose soul is connected to the chamber (10) through a sector bridge (32 , 34) presenting the profile body at least one area of ​​cross section of U-shape open towards its outer side, whose wings are formed by the core seat (30, 36) and the adjacent side wall (14, 16) the chamber (10) and whose base is formed by the sector bridge (32, 34) that connects them, characterized in that the body of the spacer profile is formed of a thermoplastic elastic-plastically deformable synthetic material with a coefficient of thermal conductivity of < 0.3 W / (mK), that the wings of the cross-sectional area of ​​U-shape have a height that is worth at least twice the width of the base, and that at least the core seat (30, 36) is connected by coupling materials with a plastically deformable reinforcing layer 40 consists of a metal with a coefficient of thermal conductivity <50 W / (mK).