AP-Silane 21

Advanced Polymer

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.

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

PropertyValueUnit
Boiling Point123°C
Flash Point23 (Closed cup)°C
Flammability1.42 (min.), 22.7 (max.)% v/v
Evaporation Rate> 1-
Vapor Pressure< 2.6 (at 25 °C)kPa
Vapor Density5.1-
Auto-Ignition Temperature> 200°C
Specific Gravity0.97-
SolubilityInsoluble in water (Hydrolyzed with water)-
% Actives100%
AppearanceColorless, transparent-
OdorSlight odor-

Specifications

Test ConditionSpecificationValueUnitTest Method
-Purity≥ 98%-
-Refractive Index1.39--
-Molecular weight148.23--
-Specific Gravity0.97--
-Minimum Coverage Area515m²/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

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