Description

(30-35% Dodecylmethylsiloxane)-[7-10% Hydroxy(Polyethyleneoxy(6-9)Propyl)Methylsiloxane]-(55-65% Dimethylsiloxane) Terpolymer, 250-350 Cst is a specialized silicone-based copolymer engineered to deliver unique surface-active and release properties. This product matters because it combines the lubricity and hydrophobicity of long-chain alkyl groups with the hydrophilic character of polyether chains, creating a versatile performance additive. It is primarily needed by formulators in the personal care, coatings, and industrial release agent sectors seeking to modify surface tension, improve spreadability, and provide durable slip.

Application

• Personal Care & Cosmetics: Acts as an effective emollient, conditioner, and spreading agent in hair care products, skin creams, and sunscreens, enhancing sensory feel and reducing tackiness.
• Industrial Release Agents: Used as a key component in mold release formulations for rubber, plastics, and polyurethane processing, providing excellent demolding performance.
• Coatings & Inks: Functions as a flow and leveling additive, slip agent, and mar-resistance aid, improving surface quality and application properties.
• Textile & Fiber Treatment: Imparts softness, lubricity, and water repellency to fibers and fabrics during finishing processes.
• Automotive & Industrial Polishes: Serves as a gloss-enhancing and protective agent in polish and wax formulations, providing durable shine and water beading.
• Adhesive & Sealant Modifier: Used to control adhesion, reduce surface energy, and improve the workability of silicone and organic polymer systems.

Basic Information

Product Name	(30-35% Dodecylmethylsiloxane)-[7-10% Hydroxy(Polyethyleneoxy(6-9)Propyl)Methylsiloxane]-(55-65% Dimethylsiloxane) Terpolymer, 250-350 Cst
CAS No.	212335-52-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Alkyl Methyl Siloxane-Polyether Copolymer; Polyether Modified Alkyl Silicone; Dodecyl PEG/PPG Siloxane Copolymer; Alkyl Polyether Siloxane; Silicone Polyether Alkyl Terpolymer; Polyalkyleneoxide Modified Heptamethyltrisiloxane; Nonionic Silicone Surfactant; ABIL® EM 90 type surfactant
EINECS	Contact for details

Quality Control

Our (30-35% Dodecylmethylsiloxane)-[7-10% Hydroxy(Polyethyleneoxy(6-9)Propyl)Methylsiloxane]-(55-65% Dimethylsiloxane) Terpolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent composition, viscosity, and performance characteristics. Certificates of Analysis (COA) documenting key specifications are available upon request to support your quality assurance and regulatory compliance needs.

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). Keep away from strong oxidizing agents and heat sources to maintain product integrity.

Specification

Item	Specification
Appearance	Clear to slightly hazy liquid
Viscosity @ 25°C	250 - 350 cSt
Specific Gravity @ 25°C	0.95 - 1.05
Refractive Index @ 25°C	1.440 - 1.455
Water Content (Karl Fischer)	≤ 0.5 %
Identification (IR)	Conforms

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