Unlocking Superior Adhesion with BRB Silanil 829
17 October 2025

In the ever-evolving world of advanced materials and coatings, the demand for stronger, more durable bonds between organic polymers and inorganic substrates is greater than ever. One compound that continues to stand out in this space is BRB Silanil® 829, Bis(trimethoxysilylpropyl)amine.
What Makes It Special?

This bi-functional organosilane features:
  • Two trimethoxysilyl groups for strong bonding with inorganic surfaces (glass, metal, fillers);
  • A central amine group that interacts with a wide range of organic resins (epoxy, polyurethane, acrylic, phenolic, etc.).

This unique structure allows it to act as a molecular bridge, enhancing adhesion, mechanical strength, and chemical resistance across a wide range of applications.

Key Applications

  • Adhesion promoter in solvent-based and waterborne coatings
  • Coupling agent in fiberglass-reinforced composites
  • Surface modifier for fillers and pigments
  • Crosslinker in urethane prepolymers


Test Results: Adhesion Strength Comparison

We conducted a comparative study on three common plastics, measuring adhesion strength before and after treatment with BRB Silanil 829. The results speak for themselves:

- Plastic A: 1.2 MPa → 3.8 MPa
- Plastic B: 1.5 MPa → 4.2 MPa
- Plastic C: 1.1 MPa → 3.5 MPa

This represents a 3x improvement in adhesion strength on average—critical for high-performance coatings and composites.

Why It Matters

In industries like automotive, electronics, construction, and aerospace, where bond reliability and durability are non-negotiable, this silane offers a cost-effective and versatile solution. Its low yellowing, long pot life, and broad compatibility make it a go-to choice for formulators and R&D teams.

Final Thoughts

Whether you're developing next-gen coatings or improving composite interfaces, in solvent or waterbase matrix BRB Silanil® 829 is a powerful tool in your formulation toolbox.

Have you used this silane in your formulations? What results did you see? Let’s connect and discuss!



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