Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- CASE Ingredients Functions
- Technologies
- Product Families
- Chemical Structure
-
VPS 7163
Features & Benefits
- CASE Ingredients Features
- Key Attributes
- Planar molecule with 9 methoxy groups, thus high crosslinking potential
- Compatible with amine-critical formulations, thus broad formulation window for users
- Favorable physical properties such as high boiling/flashpoints, colorless additive, etc.
- Excellent adhesion profile towards metals and selected polymers
Applications & Uses
- Applications
- Compatible Polymers & Resins
- Adhesive & Sealant Type
- Coating Type
- Application Characteristics
- VPS 7163 is a colorless isocyanurato silane with a high concentration of trimethoxysilyl groups.
- Therefore it is a strong crosslinker. It can be used as an adhesion promoter on different types of substrates like metals and plastics.
- The molecule with the heterocyclic planar six membered ring system imparts good wetting and thermal resistance thus leading to good adhesion even at high temperatures on metal substrates.
- VPS 7163 can be used in adhesives and sealants, in coatings as well as in primer formulations.
- Recommended applications in adhesives and sealants, coatings and primers:
- 1K, 2K - PU l Acrylics
- Silicones
- Epoxy resins
- Silane modified polymer systems in combination with other aminosilanes
- Hotmelts
- The thermal stability and the low volatility of VPS 7163 makes it especially useful for hot melt adhesives, e.g., EVA, PA, polyester, PU, and polyolefins.
Properties
- Appearance
- Colorless to light yellow liquid
- Odor
- Characteristic
- Compatible with
- Amine-critical formulations
- Technical Data
| Value | Units | Test Method / Conditions | |
| Freezing point | -20.0 | °C | DIN/ ISO 3016 |
| Boiling Point (at 35 hPa) | 237.0 - 247.0 | °C | — |
| Flash Point | min. 95 | °C | DIN EN ISO 2719 (Pensky-Martens, Closed Cup) |
| Density (at 20°C) | 1.181 | g/cm³ | DIN 51757 |
| Dynamic Viscosity (at 20°C) | 440 - 580 | mPa.s | DIN 53015 |
Regulatory & Compliance
- Certifications & Compliance
Technical Details & Test Data
- Enhanced Adhesion Performance
- The Challenge: Many PU formulators are facing significant challenges when formulating polyurethane adhesives, especially when it comes to primerless adhesion to critical substrates and metals.
- The Solution: VPS 7163 is a special silane adhesion promoter with a planar structure and a very high crosslinking potential. It shows excellent chemical compatibility to amine- critical, sensitive isocyanates that makes it a tailor-made solution for PU-based adhesives.
VPS 7163 is a special silane adhesion promoter with a planar structure and a very high crosslinking potential. It shows excellent chemical compatibility to amine- critical, sensitive isocyanates that makes it a tailor-made solution for PU-based adhesives.In the first lab study, we tested VPS 7163 in a 2K PU adhesive guide formulation compared to the market standard Dynasylan® GLYMO (silane concentration: 1 wt.-%). VPS 7163 led to better adhesion on aluminum, stainless steel, and also ABS polymer, tested by single lap shear testing shown in Figure 1.Adhesion Performance in a 2K PU Adhesive
Figure 1. Adhesion performance of VPS 7163 in a 2K PU adhesive (Dynasylan® GLYMO = 100 per index)
Due to its high boiling point (approx. 240°C), high flash point and high temperature stability, VPS 7163 can also be used for PU-based reactive hot melt formulations. This was illustrated by a second test series in a CaCO3/silica filled, 1K PU formulation with a silane concentration of two weight percent.Adhesion Performance in a 1K PU Adhesive
Figure 2. Adhesion performance of VPS 7163 in a 1K PU adhesive (Dynasylan® GLYMO = 100 per index)
Here, VPS 7163 improved adhesion on glass, PVC and PC. VPS 7163 also positively impacted crucial mechanical properties of the adhesive films, such as tensile strength and tear strength – without negatively influencing the adhesive’s viscosity.
Packaging & Availability
- Packaging Information
VPS 7163 is supplied in 25 kg, 200 kg and 1.000 kg containers.
Storage & Handling
- Shelf Life
- 12 months