Description: MY PDMS 47V5000 - 47V500000 (viscosities 5 000 - 10 000 - 12 500 -30 000 - 60 000 - 300 000 – 500 000) are dimethylpolysiloxane polymers with linear chains.

Applications:

Antiadherent agents: mould release of plastics and metal castings,

Lubricants: lubrication of elastomers and plastics on metal,

Hydraulic damping fluids,

Additives in maintenance products (wax polishes, floor and furniture polishes, etc.).

Advantages:

Good thermal stability,

Good resistance to combustion,

Good dielectric properties,

Low freezing point,

Low surface tension,

High compressibility,

Good oxidation resistance,

Absence of ageing under exposure to weather conditions,

Low variation of viscosity with temperature,

Good shear resistance,

Non miscible with most of organic materials,

Soluble in aromatic, aliphatic and chlorinated solvents,

Insoluble in water and alcohols.

Characteristics:

Appearance..................................................................................................  clear-colorless liquids

Viscosity at 25℃，mm2/s，approx....................................................   5 000 - 500 000

Specific gravity at 25℃，approx........................................................    0.973

Flash point（open cup），℃，.........................................................    >300

Fire point, °C ....................................................................... >350

Pour point，℃，approx........................................... - 45

Refractive index at 25℃，approx. ..........................  1.404

Surface tension at 25℃, mN/m, approx. .................  21.1

Vapor tension at 200℃，Pa，approx. ...................... 1.33

Expansion coefficient between 25℃ and 100℃，cm3/(cm3·℃), approx, ...... 9.45*10-4

Specific hear between 40℃ and 200℃:

- J/(g·K), approx  ............................................. 1.50

- Cal/(g·K), approx .......................................... 0.36

Themal conductivity，W/(m·K)，approx................... 0.16

Viscosity/temperature coefficient[1]，approx........... 0.62

Dielectric strength at 25℃，KV/mm，approx. ............ 18

Permittivity at 25℃，approx. ....................................... 2.80

Dielectric dissipation factor at 25℃ and 100kHz,appro..................... 1*10-4

D.C. resistivity at 25℃, Ω·cm,approx..................................................... 1*1015

[1] Viscosity/temperature coefficient=1-（Viscosity at 99℃/ Viscosity at 38℃）

Packaging:

MY PDMS 47V5000-47V500000 are available in 25 and 200 kg drums, in 1000kg containers or in tankers.

Storage and shelf life:

When stored in its original unopened packaging at a temperature of between -20 and +50 ℃, MY 47V5000-47V500000 may be stored for up to 36months from its date of manufacture (expiry date). Comply with the storage instructions and expiry date marked on the packaging.

Past this date, MY no longer guarantees that the product meets the sales specifications.