Description

Tripropoxypropylsilane is a versatile organosilicon compound, specifically a trialkoxysilane, known for its role as a coupling agent and surface modifier. Its primary value lies in its ability to form stable bonds between inorganic materials and organic polymers, enhancing composite material performance. This product is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced material scientists developing reinforced plastics and nanocomposites.

Application

• Coupling Agent for Composites: Enhances the interfacial adhesion between glass, mineral, or metal fillers and polymer matrices like epoxy, polyurethane, or polyolefins.
• Surface Pretreatment & Priming: Used to modify metal, glass, or ceramic surfaces to improve the adhesion and durability of subsequent coatings, paints, or adhesives.
• Moisture-Curable Systems: Functions as a crosslinker or adhesion promoter in sealants, RTV silicones, and moisture-curing resins.
• Fiberglass and Mineral Reinforcement: A key treatment for fiberglass and mineral wool to improve compatibility and mechanical properties in reinforced plastics.
• Nanomaterial Functionalization: Used to graft organic functionalities onto silica nanoparticles, carbon nanotubes, or other nanomaterials for better dispersion in organic solvents and polymers.
• Water Repellency Treatments: Imparts hydrophobic properties to construction materials, stone, and concrete when used in protective coatings.

Basic Information

Product Name	Tripropoxypropylsilane
CAS No.	25176-60-7
Molecular Formula	C12H28O3Si
Molecular Weight	248.44 g/mol
Synonyms	3-(Tripropoxysilyl)-1-propanol; Propyltripropoxysilane; 1-Propanol, 3-(tripropoxysilyl)-; Tripropoxy(3-hydroxypropyl)silane; 3-Hydroxypropyltripropoxysilane; Silane, tripropoxy(3-hydroxypropyl)-; Tripropoxysilylpropanol; (3-Hydroxypropyl)tripropoxysilane
EINECS	Contact for details

Quality Control

Our Tripropoxypropylsilane is produced under a strict quality management system. Every batch undergoes rigorous analytical testing, including gas chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications for industrial and R&D applications. A Certificate of Analysis (COA) detailing purity, assay, and key physical properties is provided with each shipment to guarantee traceability and consistency.

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 material is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent degradation by atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Purity (GC)	≥ 97.0%
Refractive Index (n20D)	1.410 - 1.420
Density (20°C)	0.92 - 0.96 g/mL
Water Content (Karl Fischer)	≤ 0.5%

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