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Diaminofunctional Silane Polymer Crosile® 5246 Organosilane as Additives and Primers in Adhesives and Sealants
Product Description
Crosile-5246 is a ready-to-use diamino-functional silane polymer that firmly couples amino-reactive resins to inorganic surfaces or fillers. It delivers stronger adhesion, lower VOC,better hydrophobicity and outperforms conventional monomeric aminosilanes
Core Benefits
- Diamino structure → fast, strong bonding to amino-reactive resins
- Alkyl side chain → hydrophobic surface, excellent wet adhesion
- Oligomeric form → low VOC, low odour, low yellowing
- Coupling function → upgraded mechanical strength of mineral-filled systems
Technical Specifications
| Property | Specification | Test Method |
| Appearance | light yellow, clear - slightly opalescent | Visual |
| Colour (Pt-Co) | ≤ 70 | ISO 6271 |
| Density (20 °C) g cm⁻ ³ | 1.06 ± 0.02 | ISO 2811 |
| Viscosity (20 °C) (20 °C)mPa·s | 38-80 | ISO 3104 |
| Flash point℃ | ≥50 °C | ISO 2719 |
Diaminofuntional Silane Polymer Application
Function: adhesion promoter / surface modifier / filler treatment
Diaminofuntional Silane Polymer Fields of Use
- Construction adhesives & sealants: MS, SPUR, PU, epoxy, RTV-silicone
- Hybrid cross-linking systems: primer-less application, improved wet adhesion
- Mineral-filled composites: higher flexural strength, lower modulus
- Coatings: hydrophobic, anti-corrosion layer on concrete, glass, aluminium
Usage Guidelines
- Additive: 0.5 – 2.0 phr, introduced during compounding
- Primer / filler treatment: dilute to 5 – 20 wt % with solvent, apply or mix and dry
