Description

N,N,N',N'-Tetramethyl-N''-[3-(Trimethoxysilyl)Propyl]Guanidine is a highly reactive organosilane coupling agent featuring a strongly basic guanidine functional group. This compound is engineered to act as a powerful adhesion promoter and surface modifier, creating robust chemical bridges between inorganic substrates and organic polymer matrices. It is essential for formulators and manufacturers in the advanced composites, coatings, and sealants industries seeking to enhance mechanical properties, durability, and chemical resistance. The product is supplied under strict quality control to ensure batch-to-batch consistency for critical industrial applications.

Application

• Adhesion Promoter for Coatings & Sealants: Significantly improves the bond strength of epoxy, polyurethane, and acrylic systems to glass, metals, and mineral surfaces.
• Surface Modification of Fillers & Pigments: Used to treat silica, glass fibers, and other inorganic fillers to improve dispersion and compatibility in polymer composites.
• Reinforcing Agent for Silicone Rubbers: Enhances the mechanical strength and adhesion properties of silicone-based formulations.
• Catalyst & Co-Catalyst in Polymerization: Functions as a strong organic base catalyst in polyurethane and other condensation polymerizations.
• Corrosion-Resistant Primer Formulations: A key ingredient in primers for aluminum, steel, and other metals to improve coating adhesion and corrosion protection.
• Fiber Sizing for Composites: Applied as a sizing agent on glass or carbon fibers to optimize the fiber-matrix interface in high-performance composites.

Basic Information

Product Name	N,N,N',N'-Tetramethyl-N''-[3-(Trimethoxysilyl)Propyl]Guanidine
CAS No.	69709-01-9
Molecular Formula	C11H27N3O3Si
Molecular Weight	277.44 g/mol
Synonyms	3-(Tetramethylguanidino)propyltrimethoxysilane; N-[3-(Trimethoxysilyl)propyl]-N,N',N'-tetramethylguanidine; Tetramethylguanidinopropyltrimethoxysilane; TMG-TMSP; Guanidine, N,N,N',N'-tetramethyl-N''-[3-(trimethoxysilyl)propyl]-; Dynasylan® 1179; Silane A-1179; (3-(Tetramethylguanidino)propyl)trimethoxysilane
EINECS	274-085-4

Quality Control

Our N,N,N',N'-Tetramethyl-N''-[3-(Trimethoxysilyl)Propyl]Guanidine is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets precise specifications for industrial applications. Certificates of Analysis (COA) detailing purity, physical properties, and test results are provided and available upon request to support your quality assurance protocols.

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). This product is hygroscopic (moisture-sensitive) and should be kept under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and maintain efficacy. Keep away from strong acids and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.445 - 1.455
Density (g/mL, 20°C)	1.02 - 1.06

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