Sacrificial shield for a window assembly

A window assembly for a vehicle comprising:

• a frame for mounting to a vehicle;
• a primary glazing panel held within a first perimeter channel formed by the frame;
• wherein an interference fit is formed between the first channel and the primary glazing panel in a lateral direction normal to the primary glazing panel to prevent movement of the primary glazing panel within the channel in the lateral direction normal to the primary glazing panel;
• a sacrificial glazing panel disposed inward of the primary glazing panel and held within a second perimeter channel formed by the frame;
• wherein the sacrificial glazing panel is a flexible panel formed of a material having a thickness to permit flexing of the sacrificial glazing panel to removably seat the sacrificial glazing panel within the second channel;
• wherein the sacrificial glazing is free of an interference fit within the second channel in the lateral direction normal to the sacrificial glazing panel so that the sacrificial glazing panel can move within the second channel in the lateral direction normal to the sacrificial glazing panel;
• wherein the frame includes a seal member forming the first channel and a retaining member forming the second channel;
• wherein the retaining member includes a seal-engaging portion engaging the seal member to form the interference fit in the lateral direction;
• and
• wherein the retaining member is a unitary one-piece, dual durometer component having a first polymeric material forming the second channel and a second polymeric material forming the seal engaging portion, and the first polymeric material has a higher durometer than the second polymeric material.