EVONIK CORPORATION › TEGO® FOAMEX 822 TEGO® FOAMEX 822 $0.00 TEGO® FOAMEX 822 is a compatible defoamer emulsion based on polyether siloxane technology. Good balance of compatibility and long-term effectiveness. Add To Cart Added! TEGO® FOAMEX 822 is a compatible defoamer emulsion based on polyether siloxane technology. Good balance of compatibility and long-term effectiveness. You Might Also Like TEGO® FOAMEX 883 AIRASE® 8070 AIRASE® 5100 TEGO® FOAMEX 815 N TEGO® FOAMEX 825