Liquid

Manta L1232 Dodecyltriethoxysilane

N-Dodecyltriethoxysilane

Product Code
Manta L1232
CAS Number
18536-91-9
Manta L1232 Dodecyltriethoxysilane

Technical Specifications

Parameter Value / Range
Appearance: Colorless transparent liquid
Purity (by GC, %) 96.0 min
Specific Gravity (ρ20°C, g/cm3) 0.885~0.895
Refractive Index (nD 25°C): 1.4220~1.4320

Product Description

Manta L1232 is a monomeric long-chain alkylfunctional silane, chemically identified as n-dodecyltriethoxysilane. Featuring a 12-carbon (C12) linear alkyl chain, this product delivers exceptional hydrophobicity, outstanding weatherability, and superior surface modification capabilities.

Distinguished by its ethoxy reactive groups, Manta L1232 offers a more moderate and controlled hydrolysis rate compared to its methoxy counterpart. Upon reaction with moisture, it liberates ethanol, making it a more environmentally friendly and lower-toxicity alternative for stringent formulation requirements.

The long molecular structure provides a highly controlled penetration depth. It is widely used in formulating premium penetrating water repellents for sensitive building materials, cultural heritage conservation, and as a high-performance surface modifier for mineral fillers, pigments, and coatings, completely retaining the substrate’s breathability and original appearance.

Equivalent Grade: Wacker GENIOSIL® DD-Triethoxy

Applications

  1. Premium Architectural Water Repellent & Stone Protection Provides long-lasting, deep water repellency for natural stone, concrete, and premium masonry.

Key Advantage: Due to its ethoxy-based, low-toxicity profile (liberating ethanol instead of toxic methanol), it is highly recommended for indoor applications or environmentally sensitive green-building projects.

  1. Cultural Heritage Conservation The ideal choice for the restoration and preservation of historical monuments, statues, and delicate artifacts. Offers a highly controlled penetration rate and forms a durable hydrophobic network without blocking capillary pores or altering the original aesthetics of the substrate.
  2. Eco-Friendly Surface Modification for Mineral Fillers Significantly improves the hydrophobicity, dispersibility, and resin compatibility of inorganic fillers (such as silica, ATH, MDH, and fiberglass). Especially suitable for compounding processes where formulators demand low-VOC or safer alcohol emissions.
  3. High-Performance Additive for Coatings, Adhesives & Sealants Acts as a superior surface modifier and moisture scavenger in eco-friendly formulations, enhancing interfacial adhesion and weatherability.
  4. Semi-Permanent Mold Release Agent Effectively utilizes its long non-polar alkyl chain to function as a highly efficient release agent in advanced molding and casting processes.

 

Application Areas

Paints & Coatings Concrete, Masonry & Stone Protection Liquid Waterproofing & Construction

Packaging & Handling

Packaging

In 20kg pail, 180kg drum and 890kg IBC

 

Safety and Storage

Hydrolysis Reaction & Ethanol Release: Manta L1232 reacts with atmospheric moisture to form cross-linked polysiloxanes. While the product itself has a high flash point, this hydrolysis reaction liberates ethanol. Ensure adequate ventilation during formulation and indoor applications to prevent the accumulation of ethanol vapors.

Storage Conditions: Store in a cool, dry, and well-ventilated area away from direct sunlight and moisture. Keep containers hermetically sealed at all times.

Shelf Life & Transport: 24 months from the date of manufacture when stored properly in original, unopened containers. It is classified as a non-hazardous substance for transport.

Documents & Downloads

Frequently Asked Questions

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