SmartBlox 2.0 setting blocks for glazing shim applications are compatible with various glazing sealants and systems. Unlike rigid setting blocks, 85 durometer SmartBlox 2.0 material provides a flexible cushion for insulating glass units, protects the glass from impacts and stress cracks by allowing for thermal expansion and contraction, promotes drainage and protects the IG seal from any water that might enter the glazing pocket, and supports dead load.