Alkyl Silanes
Hydrophobic treatment
At a glance
What it does
Alkyl / hydrophobic silanes — led by OCTEO (n-octyltriethoxysilane), the reference active for EN 1504-2 Class W hydrophobic impregnation of concrete, masonry and natural stone. Also used to render mineral fillers (silica, glass, mineral surfaces) water-repellent without forming a continuous film. IBTMO available on qualification (not stock).
Also known as
Alkyl silanes · hydrophobic silanes · OCTEO · OTES · n-octyltriethoxysilane · IBTMO (on qualification) · isobutyltrimethoxysilane · EN 1504-2 Class W impregnation active · CAS 2943-75-1 · CAS 18395-30-7 · HS/TARIC 2931 90 80
Typical applications
- Hydrophobic impregnation of concrete, masonry and natural stone (EN 1504-2 Class W, OCTEO / OTES)
- Hydrophobic treatment of silica and mineral fillers
- Hydrophobic additive in dry-mix construction mortars
- Glass and ceramic surface treatment
- IBTMO available on qualification (not stock)
Specification band
Industry-typical published bands. Producer-specific values on the COA issued per shipment.
Handling & packaging
- Moisture-sensitive · sealed drum storage
- Shelf life 12 months
- Some grades are dangerous goods · ADR documentation issued per grade
Documents on file per shipment
Serica execution notes
- Grade matched to the buyer's application — neat silane for filler treatment, emulsion for façade impregnation.
- DG declaration per shipment.
- DDP to gate.
Producers develop custom grades on request — viscosity, mesh, purity band, additive package.
Sample requests and DDP-to-gate pricing for Alkyl Silanes are quoted per buyer — MOQs, lead-times and producer identities included.