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LS-OL310 N-Octyltrimethoxysilane Oligomer

Silfluo LS-OL310 is an oligomeric N-octyltrimethoxysilane hydrolysate, a pre-condensed octylsilane oligomer.

The product consists of partially condensed octylsiloxane units with residual methoxy groups, formed by controlled hydrolysis and condensation of octyltrimethoxysilane monomer.

The oligomeric structure reduces vapor pressure and methanol emission relative to the monomeric silane; residual methoxy groups remain available for further condensation on substrate contact.

The C8 octyl chains provide hydrophobic character on treated porous inorganic surfaces; the siloxane backbone anchors to substrate hydroxyl groups.

Used as penetrating water repellent for construction and masonry substrates, hydrophobic additive in exterior coatings, and surface modifier for glass, ceramic, and textile applications.


Typical Physical Properties of LS-OL310 N-Octyltrimethoxysilane Oligomer


Silfluo Code:

LS-OL310

Chemical Name:

Synonyms

Oligomeric N-Octyltrimethoxysilane hydrolysate

Octyltrimethoxysilane oligomer

Active Content:

High-purity oligomer

Appearance:

Colorless to pale yellow transparent liquid

Density (25°C, g/cm3):

Approx. 1.000

Refractive Index (25°C):

1.4200 - 1.4400

Flash Point (Closed Cup):

> 100°C


Applications of LS-OL310 N-Octyltrimethoxysilane Oligomer


1. Construction and masonry water repellents

Used as penetrating water repellent for concrete, brick, natural stone, and infrastructure substrates.

2. Exterior paints and architectural coatings

Used as hydrophobic additive in exterior paints and plasters for improved water resistance and weatherability.

3. Glass and ceramic surface modification

Used as surface treatment agent for automotive glass and sanitary ceramics for easy-to-clean and anti-smudge properties.

4. Textile waterproofing

Used as water-resistant surface treatment for technical textiles and industrial fabrics.


Property

LS-OL310

LS-OL320

Base monomer

Octyltrimethoxysilane

Octyltriethoxysilane

Hydrolysis byproduct

Methanol

Ethanol

VOC / toxicity profile

Lower flash point risk vs. OL320

Safer ethanol release

Primary distinction

Standard hydrophobic sealer

Eco-preferred, methanol-free

Packing of LS-OL310 N-Octyltrimethoxysilane Oligomer


In 180kg drum and 900kg IBC.


Safety and Storage of LS-OL310 N-Octyltrimethoxysilane Oligomer


Store at or below 25°C in a cool, dry, well-ventilated place. Keep containers tightly sealed; moisture contact causes premature condensation to insoluble resin.

Shelf life: 12 months minimum from manufacture date in original unopened containers stored at or below 25°C.

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