1,1,5,5-Tetramethyl-3,3-diphenyl-trisiloxane

Name: 1,1,5,5-Tetramethyl-3,3-diphenyl-trisiloxane
Brand: Siwin
Rating: 5.0 (90 reviews)

Siwin‑OP423 (1,1,5,5‑Tetramethyl‑3,3‑diphenyl‑trisiloxane, CAS 17875‑55‑7) is a hydrogen‑terminated diphenyl‑modified trisiloxane. It features excellent miscibility with dimethyl siloxane, liquid silicone rubber, phenyl silicone rubber and phenyl resin, designed as a dedicated addition‑cure cross‑linker for heat‑resistant phenyl‑containing silicone systems. Stable bulk supply and technical formulation support are available for silicone manufacturers.

Model:
Siwin-OP423
Brand:
Siwin
Siwin Code:
Siwin-OP423
CAS No.:
17875-55-7

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Product Description

Siwin-OP423

1,1,5,5-Tetramethyl-3,3-diphenyl-trisiloxane

Typical properties

Product No.	Siwin-OP423
Product Name	1,1,5,5-Tetramethyl-3,3-diphenyl-trisiloxane
CAS No.	17875-55-7
Appearance	Colorless and clear liquid
Density, g/mL (25℃)	0.90~1.0
Refractive index nD25	1.4900~1.5100
Purity (GC%)	QP: ≥98 PQ : ≥99
Acid Value (ppm)	≤10.0
Flash point, COC, ℃	100
Molecular Structure

Application

Siwin-OP423 also called tetramethyldiphenyltrisiloxane, miscibility with dimethyl siloxane, liquid silicone rubber, phenyl silicone rubber and phenyl resin. It’s used as crosslinker of liquid silicone rubber, phenyl silicone rubber and phenyl resin.

Package & Storage

Packaged with 25kg,200kg coating metal drum, store in a cool ventilated place.

The storage period is 12 months.