EVONIK CORPORATION › AIRASE® 5100 AIRASE® 5100 $0.00 AIRASE® 5100 is a highly effective defoamer concentrate based on polyether siloxane technology. Excellent defoaming ability. Quantity: Add To Cart Added! AIRASE® 5100 is a highly effective defoamer concentrate based on polyether siloxane technology. Excellent defoaming ability. You Might Also Like TEGO® FOAMEX 815 N TEGO® FOAMEX 845 TEGO® FOAMEX 26 TEGO® FOAMEX 825 TEGO® FOAMEX 7447