Dynasylan® HYDROSIL 2909

Dynasylan® HYDROSIL 2909 functions as a surface modifier, coupling agent, and crosslinking agent in industrial additives.

Principal: Evonik Corporation Silanes

Functions: Adhesion Promoter, Coupling Agent, Coupling Agent, Crosslinking Agent, Oligomer, Surface Modifier

RTU Product Type: Primer

Chemical Family: Alkoxysilanes

End Uses: Abrasives, Foundry Resins, Insulation Application, Mineral-Filled Plastics, Varnishes

Compatible Substrates & Surfaces: Fiberglass Fabric, Glass, Glass Fiber, Glass Wool, Metal, Mineral Wool, Quartz, Wollastonite

Compatible Polymers & Resins: Acrylates, Epoxies (EP), Ethylene Vinyl Acetate (EVA), Furans, Melamine, Phenolics, Polyamides, Polybutylene Terephthalate (PBT), Polyphenylene Sulfide (PPS), Polyvinyl Butyral (PVB), Silicones

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Enhanced TDS

Identification & Functionality

Features & Benefits

CASE Ingredients Features
Industrial Additives Features
Labeling Claims
Materials Features
Product Benefits

The particular advantages of Dynasylan® HYDROSIL 2909 compared with the corresponding monomeric amino- or alkyl-functional alkoxysilanes are:

  • Alcohol content of ≤ 1% guarantees nonflammability, safe handling, and minimal volatile organic constituents emission.
  • No hydrolysis chemistry is needed as Dynasylan® HYDROSIL 2909 is a ready-to-use aqueous silane hydrolysate.
  • Easily diluted with water to adjust to target concentration.

Important product effects that can be achieved by using Dynasylan® HYDROSIL 2909 are:

  • Improved mechanical properties, e.g. flexural strength, tensile strength, impact strength, modulus of elasticity.
  • Improved resistance to moisture and corrosion.
  • Improved adhesion by excellent surface wetting of inorganic substrates and optimal reaction with organic polymers.

Dynasylan® HYDROSIL 2909 helps as well to improve processing properties such as:

  • Nonflammability making almost no particular equipment safety precautions necessary.
  • Better filler dispersion leading to increased filler content during compounding.

Applications & Uses

Coating End Applications
Compatible Polymers & Resins
Compatible Substrates & Surfaces
Composites End Use
Industrial Additives End Use
Plastics & Elastomers End Uses
Markets
Applications
Product Applications

Dynasylan® HYDROSIL 2909 is a trifunctional organic compound in which the silanol groups can be bonded to an inorganic substrate and the organophilic aminoalkyl group can interact with a suitable polymer or resin.

Examples of suitable inorganic substrates are:

  • Glass, glass fibers, glass beads, and glass wool
  • Mineral wool
  • Metals
  • Various fillers like quartz, wollastonite, or ATH

Examples of suitable polymers or resins are:

  • Thermosets: Epoxy, phenolic, furanic, and melaminic resins.
  • Thermoplastics: PA, PBT, EVA, PPS, MAPE, MAPP, PVB, acrylates.
  • Elastomers: Silicones

Dynasylan® HYDROSIL 2909 finds application in many industries. Advantages arise in water-based systems.

Examples are:

  • As a glass and metal primer.
  • As a size constituent of glass fiber/glass fabric composites or mineral wool insulating materials.
  • As an additive to foundry resins and abrasives.
  • As a pretreatment or an additive to mineral-filled thermoplastic compounds.
  • As an additive for adhesives and sealants to improve adhesion to the substrate.
  • As an additive and/or primer for paints and varnishes to improve adhesion to the substrate.

Properties

Physical Form

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000006
Principal

Storage & Handling

Storage Conditions
  • It is recommended to store Dynasylan® HYDROSIL 2909 above 4 °C and below 40°C.
  • Dynasylan® HYDROSIL 2909 has a flash point > 93°C and can be stored and transported accordingly with different local requirements, compared to flammable liquids (Category 2, 3 and 4), as the most established monomeric alkoxysilane materials are.
  • Dynasylan® HYDROSIL 2909 has a shelf life of minimum 6 months from delivery in an originally sealed can or drum.

Other

Appearance
Colorless to slightly yellowish
Color (SDS)
Colorless
Item Number
Odor
Amine like
Odor (SDS)
Odorless
Other Hazards
None known
USA/DOT UN Number
Not Applicable
Optical Properties
ValueUnitsTest Method / Conditions
Color Intensitymax. 50.0 mg Pt-Co/lmg Pt-Co/lISO 6271
Chemical Properties
ValueUnitsTest Method / Conditions
pH4.2-4.6-DIN 19268 at 20°C
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life6.0 momo
Physical Properties
ValueUnitsTest Method / Conditions
Density1.085-1.107 g/cm³g/cm³DIN 51757 at 20°C
Flash Point95.0 °C°CDIN EN 22719
Viscositymax. 100.0 mPa.smPa.sDIN 53015 at 20°C
Material Composition
ValueUnitsTest Method / Conditions
Solid Content34.0-39.0 %(W)%(W)DIN 38409-H1-1
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Autoignition Temperature (SDS)470.0 °C°CDIN 51794
Boiling Point (SDS)102.0 °C°CAt 1013 Hpa
Density (SDS)1.094 g/cm³g/cm³DIN 51757 at 20°C
Flash Point (SDS)min. 95.0 °C°CEN ISO 2719
Flash Point (SDS)min. 95.0 °C°CPensky-Martens Closed Cup (PMCC)
Vapor Pressure (SDS)22.7 hPahPaat 20°C
Viscosity (SDS)152.0 mPa.smPa.sDIN 53015 at 20°C
pH (SDS)4.0-at 20°C