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 842 TEGO® FOAMEX 822 AIRASE® 8070 TEGO® FOAMEX 800 TEGO® FOAMEX 845