N-Dodecyltriethoxysilane (C12, Ethoxy) | Manta L1232

Manta L1232 is n-dodecyltriethoxysilane (CAS 18536-91-9, ≥96.0% GC purity), a C12 alkyl silane used in penetrating water repellents for stone, concrete and heritage masonry and as a surface modifier for mineral fillers. Comparable to Wacker GENIOSIL DD-Triethoxy, its ethoxy groups hydrolyze at a more moderate rate and release ethanol instead of methanol.

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

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.

2. 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.
3. 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.
4. 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.
5. 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.