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Phenyltris(methylethylketoxime)silane is an organosilicon compound commonly used as a crosslinker and adhesion promoter in sealants, adhesives, and coatings.
Phenyltris(methylethylketoxime)silane belongs to the class of oxime-functional silanes, which release methylethylketoxime (MEKO) upon hydrolysis.
Phenyltris(methylethylketoxime)silane improves adhesion to a variety of substrates, enhances moisture resistance, and provides long-term durability in silicone-based formulations.
CAS Number: 34036-80-1
EC Number: 251-846-4
Molecular Formula: C18H33N3O3Si
Molecular Weight: 367.56 g/mol
Synonyms: Phenyltris(methylethylketoxime)silane, Silane, phenyltris(methylethylketoxime)-, PTMOS, Phenyltris(MEKO)Silane, Tris(methylethylketoxime)phenylsilane, Oxime Silane Crosslinker, MEKO-Functional Phenyl Silane, Organosilane Phenyltris(MEKO), Phenyltris(methylethylketoxime)silane Adhesion Promoter, Phenyltris(methylethylketoxime)silane Crosslinking Agent, Phenyltris(methylethylketoxime)silane Coupling Agent, Silicone Sealant Crosslinker Phenyltris(MEKO), Phenyl-MEKO Silane, Phenyltris(methylethylketoxime)silane Surface Modifier
APPLICATIONS
Phenyltris(methylethylketoxime)silane is used as a crosslinker in silicone sealants to achieve room temperature vulcanization.
Phenyltris(methylethylketoxime)silane is applied in one-component RTV silicone sealants as a moisture-curing agent.
Phenyltris(methylethylketoxime)silane is incorporated in adhesives to improve adhesion to glass, metals, and plastics.
Phenyltris(methylethylketoxime)silane is used in construction sealants to provide excellent bonding to porous and non-porous substrates.
Phenyltris(methylethylketoxime)silane is employed in glazing sealants for enhanced weather resistance.
Phenyltris(methylethylketoxime)silane is utilized in architectural coatings to provide hydrophobicity.
Phenyltris(methylethylketoxime)silane is added to industrial adhesives to enhance long-term durability.
Phenyltris(methylethylketoxime)silane is included in automotive sealants for strong adhesion to metal, glass, and plastics.
Phenyltris(methylethylketoxime)silane is used in transportation industry coatings for corrosion protection.
Phenyltris(methylethylketoxime)silane is applied in electronic sealants for moisture resistance.
Phenyltris(methylethylketoxime)silane is used in encapsulants to protect sensitive electronic components.
Phenyltris(methylethylketoxime)silane is employed in insulating coatings for enhanced performance.
Phenyltris(methylethylketoxime)silane is incorporated into waterproofing formulations for construction applications.
Phenyltris(methylethylketoxime)silane is used in protective coatings for concrete and stone surfaces.
Phenyltris(methylethylketoxime)silane is applied in joint sealants to maintain flexibility and durability.
Phenyltris(methylethylketoxime)silane is employed in chemical-resistant coatings for industrial floors.
Phenyltris(methylethylketoxime)silane is used in marine sealants for resistance to saltwater.
Phenyltris(methylethylketoxime)silane is applied in pipeline coatings for corrosion prevention.
Phenyltris(methylethylketoxime)silane is included in specialty adhesives for electronics assembly.
Phenyltris(methylethylketoxime)silane is used in LED encapsulation materials.
Phenyltris(methylethylketoxime)silane is applied in solar panel adhesives for weather resistance.
Phenyltris(methylethylketoxime)silane is employed in glass coatings for improved adhesion.
Phenyltris(methylethylketoxime)silane is used in ceramics coatings for durability.
Phenyltris(methylethylketoxime)silane is incorporated in plastic surface coatings for bonding enhancement.
Phenyltris(methylethylketoxime)silane is applied in primers to enhance coating adhesion.
Phenyltris(methylethylketoxime)silane is used in corrosion-resistant paints.
Phenyltris(methylethylketoxime)silane is employed in hybrid polymer systems.
DESCRIPTION
Phenyltris(methylethylketoxime)silane is a clear to pale yellow liquid with a characteristic oxime odor.
Phenyltris(methylethylketoxime)silane hydrolyzes upon contact with water, releasing methylethylketoxime.
Phenyltris(methylethylketoxime)silane is moisture-sensitive and should be stored under dry conditions.
Phenyltris(methylethylketoxime)silane functions as a crosslinker in moisture-curing silicone systems.
Phenyltris(methylethylketoxime)silane enhances adhesion to a wide variety of substrates.
Phenyltris(methylethylketoxime)silane provides long-term weather, UV, and chemical resistance.
Phenyltris(methylethylketoxime)silane improves mechanical strength and flexibility in cured sealants.
Phenyltris(methylethylketoxime)silane is compatible with other organosilanes and silicone polymers.
Phenyltris(methylethylketoxime)silane is commonly used in construction, automotive, and electronics industries.
Phenyltris(methylethylketoxime)silane is flammable and should be handled with appropriate precautions.
PROPERTIES
Chemical Formula: C18H33N3O3Si
Molecular Weight: 367.56 g/mol
Appearance: Clear to pale yellow liquid
Odor: Characteristic oxime odor
Density: ~1.05 g/cm³
Boiling Point: ~320°C
Flash Point: ~120°C
Solubility: Reacts with water, soluble in organic solvents
Reactivity: Hydrolyzes with water to form silanols and release methylethylketoxime
Stability: Stable under dry, sealed conditions; moisture-sensitive
FIRST AID
Inhalation:
Move the exposed person to fresh air immediately.
If breathing is difficult, seek medical attention.
Provide artificial respiration if necessary.
Skin Contact:
Wash skin with plenty of soap and water.
Remove contaminated clothing and wash before reuse.
Seek medical attention if irritation develops.
Eye Contact:
Rinse eyes with plenty of water for at least 15 minutes.
Seek immediate medical attention if irritation persists.
Remove contact lenses if easy to do.
Ingestion:
Rinse mouth with water.
Do not induce vomiting unless directed by medical personnel.
Seek immediate medical advice.
Note to Physicians:
Treat symptomatically.
No specific antidote is available.
Supportive care is recommended.
HANDLING AND STORAGE
Handling:
Wear suitable gloves, goggles, and protective clothing.
Avoid breathing vapors and contact with skin and eyes.
Handle under dry conditions.
Ventilation:
Use adequate local exhaust ventilation to minimize vapor exposure.
Ensure work areas are well-ventilated.
Avoidance:
Avoid contact with moisture and incompatible substances.
Do not eat, drink, or smoke while handling.
Spill and Leak Procedures:
Absorb spill with inert material such as sand or vermiculite.
Collect in suitable containers for disposal.
Prevent entry into drains or waterways.
Storage:
Store in tightly closed containers in a dry, cool place.
Protect from moisture, heat, and direct sunlight.
Keep away from ignition sources.
Handling Cautions:
Hydrolyzes in presence of water releasing methylethylketoxime vapors.
Flammable liquid; store away from sparks and flames.
Maintain sealed packaging for maximum stability.
