This is Karen from Wuhan Bolachem New Material Co., LTD. It is a great honor to write to you.
Our company Wuhan Bolachem New Material Co., LTD in China is specialized in wetting agents with great wetting properties in waterbased formula systems like water-borne coatings and inks, etc.

We have silicone wetting agents like E520, E530 which can replace Tego 4000 Tego 4100. We can also provide the raw materials BEO BMP for silicone wetting agent.
We also have non-silicone wetting agents-acetylenic diol wetting agents which can replace Evonik Surfynol 104, Surfynol 420, Surfynol 440, Surfynol 465,Surfynol 2502, Surfynol DF-110, etc.
We also have non-silicone, non acetylenic diol wetting agent: E-33, can replace Evonik W111.
Please check the attached catalog.