N-Dodecyltrimethoxysilane (C12) | Manta L1231

Manta L1231 is n-dodecyltrimethoxysilane (CAS 3069-21-4, ≥98.0% GC purity), a C12 alkyl silane used for water repellents on natural stone, concrete and sensitive masonry, including cultural heritage conservation, plus mineral filler modification and mold release. Comparable to Wacker GENIOSIL DD-Trimethoxy, its heavier C12 chain lowers volatility and gives a controlled penetration depth versus C8 silanes.

Manta L1231 is a monomeric long-chain alkyl functional silane, chemically identified as n-dodecyltrimethoxysilane. Featuring a 12-carbon (C12) linear alkyl chain, this product delivers exceptional hydrophobicity and outstanding weather resistance (UV stability).

Compared to shorter-chain silanes (e.g., C8 or C10), its heavier molecular structure significantly reduces volatility and provides a moderate, highly controlled penetration depth. This makes Manta L1231 exceptionally ideal for treating highly sensitive substrates and achieving premium, long-lasting surface modification without altering the natural breathability or aesthetics.

Chemically equivalent to Wacker GENIOSIL® DD-Trimethoxy, and serves as a long-chain functional upgrade to C10 silanes such as Shin-Etsu KBM-3103.

Manta L1231 is highly versatile and serves as a premium water repellent and interface modifier across a wide spectrum of industries:

1. Cultural Heritage Conservation (Specialty Use): > Due to its extremely low volatility, controlled penetration, and durable hydrophobic network, it is highly recommended for the protection and restoration of historical monuments, artifacts, and highly sensitive porous masonry.
2. Natural Stone & Concrete Protection: > Provides deep, long-lasting water repellency for premium natural stone, masonry, and concrete while retaining 100% water vapor permeability and the original appearance of the substrate.
3. Surface Modification of Mineral Fillers: Significantly improves the dispersibility, compatibility, and hydrophobicity of inorganic fillers and pigments in non-polar plastics, rubbers, and resin matrices.
4. Coatings, Adhesives & Sealants: Acts as a performance-enhancing additive to dramatically improve moisture resistance and interfacial adhesion.
5. Mold Release Applications: Effectively functions as a semi-permanent release agent in various molding processes due to the strong non-polar nature and low surface energy of its long C12 alkyl chain.