Poly-Methyltriethoxysilane

Poly-Methyltriethoxysilane

Chemical Name:Poly-Methyltriethoxysilane
Product Category:AlkylsilaneSilanes
Structural Formula:Poly-Methyltriethoxysilane-2
Appearance:Colorless Transparent Liquid
Viscosity:(25 ℃), mm² / s 1 ~ 5
Density:(25 ℃), g / cm3 0.920-1.050
Acid Value:(%) ≤0.3

Hydroxy Silicone Oil Description

Poly-Methyltriethoxysilane is a solvent-based silicone waterproofing agent known for its excellent water repellency and durability. It hydrolyzes easily and forms a protective silicone film under acidic or alkaline conditions, effectively preventing water infiltration while maintaining breathability.

This weather-resistant compound offers superior thermal insulation, reducing the risk of cracking in buildings and wood structures. Its strong hydrophobic properties make it ideal for long-term protection against moisture damage in various construction and wood preservation applications.

Appearance Colorless to light yellow transparent liquid.
Dissolvability Be soluble in organic solvents such as methanol, ethanol and ketones.
Application Used as waterproofing agent, isolation and anti-adhesive agent, release agent, defoaming agent, waterproof and anti-corrosion coating, methyl block room temperature vulcanized silicone rubber.
Other names No. 3 waterproofing agent, silicone waterproofing agent, 3# waterproofing agent
Physical and chemical properties Polymethyltriethoxysilane is an oligomer of methyltriethoxysilane with an average degree of polymerization of 2 to 3. It has a special fragrance and is a flammable liquid. Water is easy to hydrolyze and condense, and the products of hydrolysis and condensation are polymer compounds, which are finally cross-linked to form a film. Polymethyltriethoxysilane is hydrophobic and has high heat resistance.
Packaging
  • Our standard packing is net 25kg / 200 kg drums / 1000kg/IBC,or according to your requirements.
Sample
  • Provided for free
Inventory items
  • 10 tons
Price

Packaging Specifications

Packaging Specifications

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Poly-methyltriethoxysilane: Guide

Poly-Methyltriethoxysilane is an oligomer of methyltriethoxysilane with an average polymerization degree of 2 to 3. It is a flammable liquid with a distinct fragrance and is widely used in industrial applications.

This versatile compound serves as a waterproofing agent, anti-adhesive isolating agent, release agent, defoaming agent, and anti-corrosion coating. It is also used in the formulation of methyl-blocked room-temperature vulcanized (RTV) silicone rubber, enhancing durability and resistance to moisture and chemicals.

With its strong water-repellent and protective properties, Poly-Methyltriethoxysilane is ideal for coatings, sealants, and other silicone-based applications requiring long-term performance and reliability.

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