알킬 실란 및 건설용 실란

침투성 알킬알콕시실란 발수제는 콘크리트, 벽돌, 석재에 스며든 뒤 가수분해되어 무기 표면과 결합하고, 공극 벽면에 소수성 층을 형성해 모세관 흡수를 낮춥니다. Methyltrimethoxysilane (CAS 1185-55-3) is the workhorse small-molecule silane for this; its low molecular weight drives deep penetration into dense substrates. Specify a monomeric alkyl silane where penetration depth matters more than a surface film, such as vertical concrete facades and bridge decks.

Cure chemistry sets the handling envelope. Methoxysilanes such as methyltrimethoxysilane react and condense quickly but release methanol as the byproduct; the ethoxy analog, methyltriethoxysilane, cures more slowly and releases ethanol instead. Octyltriethoxysilane carries a longer C8 alkyl chain for higher water repellency on porous masonry. The trade-off is real: these silanes need a dry-enough substrate and adequate cure time before water exposure, so plan application around weather and substrate moisture instead of treating them as instant-dry.

A second group in this family is built for sealants instead of substrate treatment. Acetoxysilanes (ethyltriacetoxysilane, methyltriacetoxysilane) act as moisture-cure crosslinkers in RTV silicone sealants and release acetic acid on cure, while methyltris(methylethylketoxime)silane is an oxime crosslinker for lower-corrosivity systems on sensitive substrates. (3-Chloropropyl)trimethoxysilane is a chloroalkyl coupling silane for specialty surface modification. Match the crosslinker to the substrate: choose oxime or alkoxy chemistries where acetic-acid corrosion of metal or concrete is a concern.

• 콘크리트, 벽돌, 자연석 외벽용 침투성 발수 처리
• 교량 상판, 주차 구조물, 인프라 콘크리트 보호
• 건축 공사용 조적 표면 발수 처리
• RTV 실리콘 및 하이브리드 실란트용 습기 경화 가교제
• 무기 충전제 및 기재의 접착 증진과 표면 개질

• Methyltrimethoxysilane u2014 PubChem
• Methyltriethoxysilane — PubChem
• Octyltriethoxysilane (triethoxyoctylsilane) — PubChem
• Methyltriacetoxysilane — PubChem