N-Dodecyltriethoxysilane (C12, Ethoxy) | Manta L1232

Manta L1232 is a monomeric long-chain alkyl functional silane, chemically identified as n-dodecyltriethoxysilane. Its 12-carbon (C12) linear chain gives strong hydrophobicity, good weatherability and effective surface modification.

The long molecular structure provides a highly controlled penetration depth. L1232 is used in penetrating water repellents for sensitive building materials and in cultural heritage conservation, and as a surface modifier for mineral fillers, pigments and coatings, retaining the substrate's breathability and original appearance.

L1232 is the ethoxy grade of the C12 pair. Compared with its methoxy counterpart, Manta L1231, it offers a more moderate and controlled hydrolysis rate and liberates ethanol rather than methanol on reaction with moisture, which is a relevant selection factor for indoor applications. Follow the Safety Data Sheet for ventilation and handling.

• Architectural water repellent and stone protection: long-lasting, deep water repellency for natural stone, concrete and masonry; its ethanol release is a relevant selection factor for indoor applications
• Cultural heritage conservation: restoration and preservation of historical monuments, statues and delicate artifacts, with a highly controlled penetration rate and a durable hydrophobic network that does not block capillary pores or alter the original aesthetics
• Mineral filler modification: improves the hydrophobicity, dispersibility and resin compatibility of inorganic fillers such as silica, ATH, MDH and fiberglass
• Coatings, adhesives and sealants: surface modifier and moisture scavenger that enhances interfacial adhesion and weatherability
• Mold release: the long non-polar alkyl chain functions as a semi-permanent release agent in molding and casting processes

Supplied in 20 kg pail, 180 kg drum and 890 kg IBC.