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Polydimethylsiloxane (PDMS), also known as dimethylpolysiloxane or dimethicone, belongs to a group of polymeric organosilicon compounds that are commonly referred to as silicones. PDMS is the most widely used silicon-based organic polymer, as its versatility and properties lead to many applications.


Physical properties of polydimethylsiloxane | ||||||||||
Index item | Viscosity (25°C) Mpa.s | Flash point (°C,≥)kg | Density (25°C)g/cm3 | Volatile matter ≤(150℃, 3h)% | Freezing point ℃ | |||||
201-10cst | 10 | 160 | 0.945-0.955 | 3 | -65 | |||||
201-50cst | 50 | 200 | 0.950-0.960 | 1.5 | -60 | |||||
201-100cst | 100 | 260 | 0.950-0.960 | 1 | -55 | |||||
201-200cst | 200 | 280 | 0.962-0.972 | 1 | -55 | |||||
201-350cst | 350 | 320 | 0.965-0.975 | 1 | -55 | |||||
201-1000cst | 1000 | 320 | 0.965-0.975 | 1 | -50 | |||||
201-12500cst | 12500 | 320 | 0.970-0.976 | 1 | -50 | |||||
201-60000cst | 60000 | 320 | 0.970-0.976 | 1 | -50 | |||||














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