Enhanced TDS
Identification & Functionality
- Blend
- No
- CASE Ingredients Functions
- Chemical Family
- Composite Materials Functions
- Country of Origin
- Function
- Surface Modifier, Crosslinking Agent, Adhesion Promoter, Sizing Agent, Coupling Agent, Reinforcement
- Plastics & Elastomers Functions
- Product Code
- MITM12947
- Single Ingredient
- Yes
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
- Labeling Claims
- Materials Features
Applications & Uses
- Coating End Applications
- Compatible Polymers & Resins
- Compatible Substrates & Surfaces
- Composites End Use
- Industrial Additives End Use
- Markets
- Applications
- Product Applications
Dynasylan® VPS 4721 is a novel ingredient for special formulations and can be used in many applications in different industries.
Examples are:
- Glass fiber/glass fabric composites: as a finish or a size ingredient
- Foundry resins: as an additive to polyurethane resins
- Sealants and adhesives: as a primer or additive
- Mineral filled composites: for pretreatment of fillers and pigments or as an additive to the polymer
- Paints and coatings: as an additive and as a primer for improving adhesion to the substrate, especially glass and metal as an additive for polymer dispersions
Important product effects that can be achieved through the use of Dynasylan® VPS 4721 as an additive include:
- Improved mechanical properties, such as flexural strength, tensile strength, impact strength and modulus of elasticity
- Improved moisture and corrosion resistance
- Improved electrical properties, for example dielectric constant, volume resistivity better adhesion on substrates
- Crosslinking of suitable polymers and polymer dispersions
- Imporved storage stability of formulations
Dynasylan® VPS 4721 can be used for:
- Filler dispersions
- Viscosity reduction
- Increased filler loading
- Non yellowing
Properties
- Physical Form
- Soluble In
- Product Reactivity
- In the presence of water, the methoxy groups of Dynasylan® VPS 4721 hydrolyze to form reactive silanol groups which can bond to a variety of inorganic substrates.
- The organophilic glycidyl end of Dynasylan® VPS 4721 can react with a suitable polymer.
- Hydrolysis of Dynasylan® VPS 4721 can be catalyzed by organic acids such as acetic acid.
- Examples of suitable inorganic substrates are glass, glass fibers, quartz, cristobalite and metals.
- Dynasylan® VPS 4721 may be used in epoxy resins, phenolic resins, polyurethanes, PVAC, acrylates, polysulfides.
Packaging & Availability
Principal Information
- Group Principal Number
- S000006
- Principal
Storage & Handling
- Storage Conditions
- In the unopened container VPS 4721 has a shelf life of min. 12 months from delivery.
- Please do not store above 35°C or in the direct sunlight.
Other
- Appearance
- Colorless liquid
- Color (SDS)
- Colorless to yellowish
- Immiscible In (SDS)
- Water
- Item Number
- USA/DOT UN Number
- Not Applicable
- Shelf Life & Stability
Value Units Test Method / Conditions Shelf Life 12.0 mo mo - Physical Properties
Value Units Test Method / Conditions Flash Point min. 95.0 °C °C DIN EN ISO 2719 Viscosity 700.0-1200.0 mPa.s mPa.s DIN 53015 at 20°C - SDS Physical and Chemical Properties
Value Units Test Method / Conditions Boiling Point (SDS) min. 248.0 °F °F Density (SDS) 1.23 g/cm³ g/cm³ DIN 51757 at 20°C Flash Point (SDS) min. 203.0 °F °F Freeze Point (SDS) -89.0 °F °F Ignition Temperature (SDS) 707.0 °F °F DIN 51794 Viscosity (SDS) 750.0-1350.0 mPa.s mPa.s DIN 53019 at 25°C pH (SDS) max. 6.0 - DIN 38404-5