Gelest PDM-0821

Chemical Family: Silicones

Gelest DIPHENYLSILOXANE-DIMETHYLSILOXANE COPOLYMER, 100-125 cSt (PDM-0821) has good damping properties. This product is used in bearings, gears, and optical applications.

Properties

Physical Form: Liquid

Product families

Ready-to-Use Products — Fluids & Lubricants

Greases
Heat Transfer Fluids
Lubricants & Oils

Other characteristics

Features: Good Damping
Product Type: Coolant, Dielectric Fluid, Grease, Heat Transfer Fluid, Hydraulic Fluids, Lubricant; Coolant; Dielectric Fluid; Grease; Heat Transfer Fluid; Hydraulic Fluids; Lubricant
Application Area: Bearings, Gears, Optical Applications
Bearings
Gears
Optical Applications
Technology: Ready-to-Use Products
Technical Details: The thermal silicone fluids are described in chemical notation as aromatic siloxanes because of the presence of phenyl groups. High phenyl content fluids are utilized as heat-exchange fluids, dielectric coolants, impregnants for sintered metal bearing, and base oils for high temperature fluids. Low phenyl content fluids are utilized at lower temperatures than high phenylsilicones and find extended temperature service applications as lubricating oils for critical devices such as timers and systems involving rubber, plastic and aluminum mating surfaces. For more information click here.
Standard Packaging: 100 g
1 kg
10 kg
200 kg
Chemical Inventories: TSCA (USA)
Ready to Use Product Features: Good Damping

Technical data

Table 1 of 2

13 rows

Characteristic	Value	Unit
Density	0.99	g/ml
Pour Point	-70.0	°C
Refractive Index (at 20°C)	1.436	—
Viscosity (at 25°C)	100 - 125	cSt
Viscosity (at 99°C)	30 - 32	cSt
Viscosity Temperature Coefficient	0.63	—
Specific Gravity	0.99	—
Surface Tension	22.8	mN/m
Dielectric Constant	2.78	F/m
Flash Point	280.0	°C
Ignition Temperature	484.0	°C
Comonomer Mole	7 - 10	%

Table 2 of 2

1 row

Characteristic	Value	Unit
Gel Time (250°C in air)	1200 - 1500	hours