Description

Tetrakis(Methylisobutylketoximino)Silane is a specialized organosilicon compound, specifically a silane coupling agent with four oxime-functional groups. This structure is critical for its primary role as a highly effective crosslinking agent and moisture scavenger in silicone-based sealants and adhesives. It is an essential raw material for formulators in the construction, automotive, and electronics industries seeking to enhance product durability and performance under humid conditions.

Application

• Primary crosslinker for neutral-cure (e.g., acetoxy-free) silicone sealants and adhesives.
• Moisture scavenger in one-component RTV (Room Temperature Vulcanizing) silicone systems to prevent premature curing.
• Key ingredient in high-performance construction sealants for glass, sanitary, and structural glazing.
• Used in automotive assembly for gasketing, bonding, and vibration-damping components.
• Formulation component for potting and encapsulating compounds in electronics.
• Intermediate in the synthesis of other functional silanes and silicone polymers.
• Adhesion promoter in coatings and composites where moisture resistance is required.

Basic Information

Product Name	Tetrakis(Methylisobutylketoximino)Silane
CAS No.	156145-62-9
Molecular Formula	C24H52N4O4Si
Molecular Weight	488.78 g/mol
Synonyms	Silane, tetrakis[(methyl-1,1-dimethylethyl)ketoximato-O]-; Methyl Isobutyl Ketoxime Silane; MIBK Oxime Silane; Crosslinking Agent OS; Silane Coupling Agent SC-103; Tetrakis(methylethylketoximo)silane (common name variant); Tetrakis(methyl isobutyl ketoximo)silane
EINECS	Contact for details

Quality Control

Our Tetrakis(Methylisobutylketoximino)Silane is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing including assay, color, and refractive index. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent contact with atmospheric moisture, which can lead to premature reaction or degradation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Color (APHA)	≤ 50
Refractive Index (n20/D)	1.4550 - 1.4590
Density (20°C)	0.92 - 0.96 g/cm³

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