Stator vane seal arrangement for a gas turbine engine

A seal spacer for a gas turbine engine, for providing sealing between a casing wall of the engine and a stator vane inserted into a corresponding opening provided in the casing wall of the engine, the seal spacer comprising:

• a circumferential body having a slot defined therethrough configured to receive the stator vane therein, the circumferential body configured to be disposed between and space apart the engine casing wall from a head of the stator vane when the vane is inserted in the slot and the vane is inserted in the opening in the casing wall, the circumferential body defining a first surface adapted to sealingly engage the head of the stator vane and a second surface adapted to sealingly engage the casing wall when the vane is inserted in the slot and the vane is inserted in the opening in the casing wall, wherein the circumferential body includes a support positioned to be engaged and provide a gap between the casing wall and the head when the seal spacer is installed therebetween, and wherein the circumferential body includes an elastomeric seal portion positioned to engage and compressingly provide sealing between the casing wall and the head when the seal spacer is installed therebetween to seal the gap, and wherein the support is made of a material that is different than a material of the elastomeric seal portion, the material of the support being more resistant to compression set than the material of the elastomeric seal portion.