Typical Physical Properties of LS-624/V4 Tetravinyltetramethylcyclotetrasiloxane (V4)
Silfluo Code: | LS-624 |
Chemical Name: Synonyms | 2,4,6,8-Tetravinyl-2,4,6,8-tetramethylcyclotetrasiloxane Tetramethyltetravinylcyclotetrasiloxane; V4 |
CAS No. : EINECS No. : | 2554-06-5 219-863-1 |
Molecular Weight: | 344.66 |
Appearance: | Colorless transparent liquid |
Purity (by GC, %): | 98.0 min |
Vinyl Content: | ≥30% |
Density (ρ25°C, g/cm³) | 0.997 |
Refractive Index (n25/D) | 1.4300~1.4400 |
Boiling Point: | 224-224.5 ºC |
Flash Point: | 99 °C Closed Cup |
Water Solubility: | Insoluble |
Applications of LS-624/V4 Tetravinyltetramethylcyclotetrasiloxane (V4)
1. Addition-Curing Silicone Inhibitor (LSR/RTV-2)
Widely utilized as an essential inhibitor in platinum-catalyzed, addition-curing two-part RTV and Liquid Silicone Rubber (LSR) formulations. When added to the crosslinker component, its high boiling point and low evaporation rate provide an extremely stable and extended working time (pot life) at ambient temperatures, while still allowing for rapid curing at elevated temperatures.
2. Silicone Rubber Compounding
Used as an advanced additive in the compounding of methyl vinyl silicone rubbers (HTV/HCR) to increase crosslink density. This modification dramatically improves the mechanical performance, tear resistance, and overall durability of the cured elastomer.
3. Vinyl Silicone Oil & Resin Synthesis
Serves as a critical reactive monomer for compounding and synthesizing high-performance vinyl silicone oils, gums, and specialty silicone resins. It allows formulators to precisely distribute reactive vinyl groups across the polymer matrix.
4. Flame Retardant Polyolefins
Acts as an effective synergistic additive in the compounding of halogen-free polyolefin fire-retardant materials, improving both flame retardancy and the rheological processing properties of the plastic.
Packaging of LS-624/V4 Tetravinyltetramethylcyclotetrasiloxane (V4)
In 25L pail, 200L drum and 1000L IBC
Safety and Storage of LS-624/V4 Tetravinyltetramethylcyclotetrasiloxane (V4)
Keep in a cool and dry place and avoid storage in direct sunlight. Shelf life is min. 12 months. It is shipped as hazardous substance.
Find Other Types of Siloxanes & Silazane by CAS Number
English
日本語
한국어
français
Deutsch
Español
русский
português
العربية
tiếng việt
ไทย
