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At a glance

End-capped surfactants

Low-foam process wetting

Ionic type
Nonionic
Typical HLB
Mid; capped EO
Foam
Low
Key industries
I&I, Textile, Metal

Biodegradability: End-capping lowers foam and can slow biodegradation versus uncapped alcohol ethoxylates — confirm the grade claim.

End-Capped Low Foaming Products

End-capped surfactants technical guide

TCF 10 and CSLF-17 are the commercial grades. Why end-capping survives caustic, how it differs from EO/PO low-foam copolymers, and when APEO rules out alkyl phenol hydrophobes are explained in the end-capped surfactants guide.

Learn the chemistry

Technical guides for this product family

Primers matched to this chemistry family. Start here, then open a TDS.

FAQ

Frequently Asked Questions - End Capped Surfactants

Find answers to common questions about end capped surfactants

End capped surfactants are nonionic surfactants where the terminal hydroxyl group is capped (blocked) with a hydrophobic group. This modification provides enhanced alkali stability, improved low-foaming properties, and better performance in high pH applications.
End capped surfactants offer excellent alkali stability, low-foaming properties, high temperature stability, improved hard water tolerance, and enhanced performance in high pH applications. They are ideal for industrial cleaning and metal processing applications.
End capped surfactants are used in metal cleaning, textile processing, industrial cleaning, paper manufacturing, and applications requiring high alkali stability and low foam.
End capped surfactants have blocked terminal hydroxyl groups, providing superior alkali stability, lower foaming, and better performance in harsh conditions compared to standard ethoxylated surfactants. They maintain effectiveness in high pH and high temperature environments.