AP-Silane 21
Advanced Polymer · AP-Silane
AP-Silane 21 is a high-purity vinyltrimethoxysilane coupling agent with dual organic and inorganic reactivity, it functions as a cross-linking agent and surface modifier in polymer systems. Commonly used for cross-linking polyethylene (PE) and polypropylene (PP), it enhances adhesion, durability, and mechanical performance, including tensile, flexural, and compressive strength under both wet and dry conditions. AP-Silane 21 is an ideal additive for paints, coatings, and advanced composites requiring long-lasting strength and adhesion.
- Excellent adhesion
- High bonding strength
- High performance
- Provides durable bonding
Specifications
Identifiers
- Chemical name
- Vinyltrimethoxysilane
- CAS number(s)
- 2768-02-07
- EC number
- 220‑449‑8
- Molecular formula
- C5H12O3Si or CH2=CH–Si(OCH3)3
- InChI key
- NKSJNEHGWDZZQF‑UHFFFAOYSA‑N
- Synonyms
- Propyltrimethoxysilane, Trimethoxy(propyl)silane, n-Propyltrimethoxysilane, Silane, Trimethoxypropyl
Technical specifications
Properties
| Property | Value | Unit |
|---|---|---|
| Boiling Point | 123 | °C |
| Flash Point | 23 (Closed cup) | °C |
| Flammability | 1.42 (min.), 22.7 (max.) | % v/v |
| Evaporation Rate | > 1 | - |
| Vapor Pressure | < 2.6 (at 25 °C) | kPa |
| Vapor Density | 5.1 | - |
| Auto-Ignition Temperature | > 200 | °C |
| Specific Gravity | 0.97 | - |
| Solubility | Insoluble in water (Hydrolyzed with water) | - |
| % Actives | 100 | % |
| Appearance | Colorless, transparent | - |
| Odor | Slight odor | - |
Specifications
| Test Condition | Specification | Value | Unit | Test Method |
|---|---|---|---|---|
| - | Purity | ≥ 98 | % | - |
| - | Refractive Index | 1.39 | - | - |
| - | Molecular weight | 148.23 | - | - |
| - | Specific Gravity | 0.97 | - | - |
| - | Minimum Coverage Area | 515 | m²/g | - |
- Industries
- Advanced materialsPaints & Coatings
- Product groups
- SiliconesSilane Coupling Agents
- Applications
- Adhesives & sealants formulationsCoatings formulationsPolymersPrinting inks & coatings
- Functions
- Coupling agentCross-linking agent
- Market segments
- AdhesivesCoatingsInksPaints & coatings additivesSealants
Documents
- Request a copy
Technical Data Sheet (TDS)
Specifications & performance data
- Request a copy
Safety Data Sheet (SDS)
Safety information & handling