It is an inorganic adhesive applicable for both high and cryogenic temperature. It is a two component adhesive, consisting of inorganic reinforcement powder, mineral material, curing agent, and other additives, etc. This adhesive is used to glue insulation, such as cellular glass, PIR-polyisocyanurate and PUR-polyurethane, etc, and the service temperature range is wide, especially in hot and cold pipes and reactor which chemical fertilizer plant and pharmaceutical factory usually take. FQ 15A and FQ 15B shall be mixed for application.