Other Names:
Bonding Agents, Primers, Amino Silanes, Organosilanes, Surface Modifiers
Specification Summary
- Purity: 95–99.9% (varies by type and application)
- Form: Liquid solutions, aerosols, powders, or waxy solids
- CAS No.: 5089-72-5
- Molecular Formula: NH₂(CH₂)₂NH(CH₂)₃Si(OC₂H₅)₃
- Molecular Weight: 265.43 g/mol
Product Description
Adhesion promoters are typically clear to pale-yellow liquids, aerosols, or powders. They are soluble in organic solvents (e.g., isopropyl alcohol, acetone) but insoluble in water. Non-corrosive and pH-neutral (6–8), these compounds feature bifunctional groups that chemically bridge substrates and adhesives. They exhibit low volatility, thermal stability up to 200°C, and excellent resistance to moisture and UV degradation.
Adhesion Promoters Specification Table
| Property | Value/Range | Test Method/Notes |
| Appearance | Clear liquid, powder, aerosol | Visual |
| Purity | ≥95% | GC/MS analysis |
| Solubility | Organic solvents, insoluble in water | |
| pH (5% solution) | 6–8 | Neutral |
| Viscosity (25°C) | 10–50 mPa·s | ASTM D445 |
| Flash Point | 40–100°C | Closed cup method |
| Density | 0.82–1.12 g/cm³ | ASTM D4052 |
| Solids Content | 5–30% | Gravimetric analysis |
| Shelf Life | 12–24 months | Sealed containers, room temperature |
Downloadable TDS:
A comprehensive Technical Data Sheet (TDS) is available for download, providing detailed mechanical, thermal, and electrical properties, as well as processing guidelines for polystyrene
Application Sectors and Industries of Adhesion Promoters
Automotive Manufacturing
Enhances adhesion of paints, primers, and adhesives to metals, plastics (e.g., PP/EPDM), and composites. Improves corrosion resistance and durability of body panels, trim, and glass bonding.
Electronics & Semiconductors
Promotes bonding of conductive materials, solder masks, and protective coatings on circuit boards. Ensures reliability in high-temperature and humid environments.
Construction & Infrastructure
Strengthens adhesion of sealants, coatings, and adhesives to concrete, wood, and ceramics. Used in weatherproofing, flooring, and structural bonding applications.
Aerospace & Aviation
Optimizes bonding of composites and metals in aircraft components. Resists extreme temperatures and mechanical stress in engine and fuselage assemblies.
Packaging & Printing
Improves ink adhesion on plastics, films, and metals for labels, flexible packaging, and cartons. Reduces smudging and enhances print durability.
Medical Devices
Ensures secure bonding of biocompatible adhesives to polymers and metals in surgical tools, implants, and diagnostic equipment.
Marine Industry
Enhances adhesion of antifouling coatings and sealants on ship hulls and offshore structures. Resists saltwater corrosion and UV exposure.
Textiles & Nonwovens
Facilitates bonding of coatings and dyes to synthetic fibers. Used in waterproof fabrics, automotive interiors, and industrial textiles.
Renewable Energy
Improves adhesion in solar panel laminates and wind turbine composites. Ensures long-term performance under environmental stress.
Consumer Goods
Strengthens bonds in footwear, appliances, and furniture. Enhances durability of adhesives in high-wear applications.
Packaging Types
- Aerosol Cans (400–500 mL): For precise, controlled application on small surfaces or complex geometries.
- 1–5 kg Bottles: Liquid solutions in HDPE containers for laboratory or small-scale industrial use.
- 25 kg Drums: Sealed steel or HDPE drums for bulk liquid formulations.
- IBC Totes (1,000 liters): For high-volume applications in automotive or construction industries.
- Custom Packaging: Pre-measured sachets or flexitanks for specialized logistics needs.
Adhesion promoters are critical for achieving durable, high-performance bonds across diverse materials and industries. Their ability to bridge incompatible surfaces ensures enhanced product longevity and reliability. For formulation-specific guidance, safety protocols, and regulatory compliance, request the downloadable TDS.
