What is TMDD?
TMDD — 2,4,7,9-tetramethyl-5-decyne-4,7-diol, CAS 126-86-3 — is the molecular backbone of acetylenic diol surfactants. It combines a rigid alkyne bond with two hydroxyl groups, giving it both a hydrophobic center and hydrophilic ends. This structure rapidly reduces dynamic surface tension while resisting foam stabilization, which is why TMDD-based surfactants are widely used in waterborne coatings, inks and printing.
As a TMDD surfactant manufacturer, Tianjin Hi-Perferal supplies TMDD as the Toynol® FS-204 series, including neat solid, glycol solutions and ethoxylated derivatives.
Key Products
- Toynol® FS-204 — TMDD, CAS 126-86-3, waxy solid, active content ≥98%
- Toynol® FS-204E — TMDD in glycol solution
- Toynol® FS-204H — TMDD glycol solution
- Toynol® FS-204DPM — TMDD in DPM glycol ether solution
- Toynol® FS-204BC — TMDD glycol solution
Technical Highlights
- CAS 126-86-3 — the same substance class used in leading imported acetylenic diol products
- 0.1% aqueous solution: static surface tension ~32.8 dyn/cm, dynamic ~33.3 dyn/cm
- Active content ≥98%, waxy solid or glycol solutions for flexible dosing
Applications
- Waterborne coatings, inks and printing chemicals
- Substrate wetting on low-energy surfaces
- Defoaming/wetting balance in high-shear processes
Manufacturer
Toynol® TMDD surfactants are manufactured by Tianjin Hi-Perferal Advanced Materials Co., Ltd. and its subsidiary Liaoning Surfychem Co., Ltd.
Contact
Technical service: +86-22-82910362 · https://www.surfychem.com/en/products/fs-204-en/