Andisil® 78 Silane

1 of 500 products in this brand
Epoxy functional silane used used to improve dry and wet strength in cured composites reinforced with glass fiber rovings. Silanes are used in a variety of industrial applications. Organofunctional Silanes have an organic functional end group and an alkoxy functional end group which allow the silane to act as a bridge between organic materials and inorganic substrates. The organic functional group is matched to the resin system while the alkoxy group provides the reactive site for crosslinking. These materials are useful as adhesion promoters, crosslinking agents, surface modifiers and hydrophobizing agents.

Chemical Family: Epoxy & Epoxy Derivatives, Silanes, Silicones

Functions: Adhesion Promoter, Coupling Agent

Compatible Polymers & Resins: Acrylics, Epoxies (EP), Nitrile Butadiene Rubber (NBR), Phenolic Resins, Polyamides, Polycarbonates (PC), Polyesters, Polysulfide Rubber, Polyurethanes (PU)

Synonyms: (3-Glycidyloxy)propyldiethoxymethylsilane, [3-(Glycidyloxy)propyl]methyldiethoxysilane, 2-[[3-(Diethoxymethylsilyl)propoxy]methyl]oxirane, 3-(Glycidoxy)propyldiethoxymethylsilane, 3-(Glycidoxypropyl)methyldiethoxysilane, 3-(Methyldiethoxysilyl)propyl glycidyl ether, 3-GPMDES, Diethoxy-3-glycidoxypropylmethylsilane, Diethoxy[3-(glycidyloxy)propyl]methylsilane, NSC 252159, γ-Glycidoxypropylmethyldiethoxsilane, γ-Glycidoxypropylmethyldiethoxysilane, γ-Glycidyloxypropylmethyldiethoxysilane

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Identification & Functionality

CASE Ingredients Functions
Composite Materials Functions
CAS No.
2897-60-1
EC No.
220-780-8

Features & Benefits

Key Functions

Adhesion Promotion:

  • Low use levels, typically <1%
  • Substrates - reaction with alkoxy functional group
    • Glass
    • Siliceous Substrates
    • Metals/ metal oxides
  • Substrates – reaction with organic functional group
    • Acrylics
    • Polyamides
    • Polyesters

Coupling Agent:: 

  • Dispersed in adhesive/ sealant material
  • Improves
    • Mechanical Properties
    • Chemical Resistance
    • Hydrolytic Stability
  • Substrates
    • Mineral fillers
    • Polymeric coatings

Crosslinking: 

  • Create structure in polymer network
  • Improve physical properties
    • Heat resistance
    • Hardness
    • Chemical Resistance

Dispersing Agent:

  • Improves filler wetting
  • Decreases viscosity which allows for high loading of silica

Applications & Uses

Compatible Reinforcements
Adhesive & Sealant Type
Applications

Silanes are used in a variety of industrial applications as:

  • Coupling agents
  • Crosslinkers
  • Moisture scavengers
  • Resin additives
  • Surface modifiers
  • Epoxy functional silane used used to improve dry and wet strength in cured composites reinforced with glass fiber rovings.
  • Enhances wet electrical properties of epoxy-based encapsulate and packaging materials
  • Eliminates the need for a separate primer in polysulfide and urethane sealants
  • Used as an adhesion promoter in waterborne acrylic sealants and in urethane and epoxy coatings

Properties

Physical Form
Appearance
Colorless liquid
Typical Properties
ValueUnitsTest Method / Conditions
Density (at 25°C)0.978g/ml
Flash Point122°C
Minimum Puritymin. 97%
Molecular Weight248.39
Refractive Index1.431

Regulatory & Compliance

Packaging & Availability

Packaging Type
Package and Handling

Andisil® 78 Silane is available in 440 pound net weight drums or 40 pound pails. Other packaging options may be available upon request.

Storage & Handling

Shelf Life
2 years
Storage and Shelf Life

The shelf life, when the container is stored unopened and under proper conditions above 50 ºF, is expected to be a minimum of two (2) years. Reacts with water. Take precautions to avoid contact with atmospheric moisture.