Description

Siloxanes And Silicones, Di-Me, [(Methylsilylidyne) Tris (Oxy)] Tris-,Hydroxy-Terminated, Ethers With Polyethylene-Polypropylene Glycol Mono-Bu Ether is a specialized silicone polyether copolymer designed to act as a high-performance surfactant and foam control agent. This compound matters because it combines the hydrophobic, flexible nature of polydimethylsiloxane with the hydrophilic, water-soluble properties of polyalkylene glycol ethers, creating a unique surface-modifying material. Industrial formulators need it to achieve stable emulsions, superior wetting, and controlled foam in demanding aqueous and solvent-based systems.

Application

• Polyurethane Foam Stabilizer: A critical additive for controlling cell structure and stabilizing foam in flexible and rigid polyurethane foam production.
• Industrial Defoamer/Antifoam: Used as a key component in high-performance defoamers for wastewater treatment, pulp & paper processing, and chemical manufacturing.
• Coatings & Inks Additive: Enhances substrate wetting, leveling, and flow in water-based and solvent-based coatings, paints, and printing inks to eliminate surface defects.
• Agricultural Adjuvant: Functions as a surfactant and spreader in pesticide and herbicide formulations to improve foliar coverage and absorption.
• Personal Care & Cosmetics: Acts as an emulsifier and conditioning agent in skincare products, hair care formulations, and color cosmetics for a smooth feel.
• Textile & Fiber Processing: Serves as a softener, lubricant, and anti-foaming agent in fiber spinning, dyeing, and finishing baths.
• Adhesive & Sealant Modifier: Improves adhesion, rheology, and moisture resistance in silicone-modified polymer (SMP) sealants and adhesives.

Basic Information

Item	Details
Product Name	Siloxanes And Silicones, Di-Me, [(Methylsilylidyne) Tris (Oxy)] Tris-,Hydroxy-Terminated, Ethers With Polyethylene-Polypropylene Glycol Mono-Bu Ether
CAS No.	68937-56-4
Molecular Formula	Complex copolymer; Contact for details
Molecular Weight	Variable based on EO/PO ratio; Contact for details
Synonyms	Silicone Polyether Copolymer; Silicone Glycol Copolymer; Polyalkyleneoxide Modified Heptamethyltrisiloxane; Hydroxy-Terminated Silicone Polyether; Polyether-modified Trisiloxane; Dimethicone Copolyol; Surfactant SAG; Antifoam Compound 68937-56-4
EINECS	Contact for details

Quality Control

Our silicone polyether copolymers are manufactured under a strict quality management system. Each batch undergoes rigorous testing for key parameters including hydroxyl value, silicone content, ethylene oxide/propylene oxide (EO/PO) ratio, viscosity, and appearance to ensure consistent performance and batch-to-batch reliability. Certificates of Analysis (COA) documenting these specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C / 59-77°F). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Clear to slightly hazy liquid
Color (Gardner)	≤ 3
Viscosity @ 25°C	100 - 5000 mPa·s (Grade dependent)
Hydroxyl Value (mg KOH/g)	Contact for details
Water Content (Karl Fischer)	≤ 1.0 %
Specific Gravity @ 25°C	0.95 - 1.05
pH (5% in water/isopropanol)	5.0 - 7.0

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.