Clearco Products

3430 G Progress Drive - Bensalem, PA 19020 - Telephone: 1-800-533-5823 U.S. & Canada 215-639-2640 International: 1-011-215-639-2640 Fax: 215-639-2919

Products Description: Clearco offers a full line of Silicone Heat Transfer Fluids from –80°C to 300°C.

Low Temperature Silicone Heat Transfer Fluids are clear, colorless and odorless fluids that are characterized by their low viscosities, low viscosity-to-temperature coefficients (little viscosity change at low temperatures), low pour points, low temperature stability, and compatibility with virtually all surfaces including metal, rubbers and plastics. The PSF-2cSt and PSF-5cSt are widely used in Freeze Drying and Lyophilization applications.

Wide and High Temperature Silicone Heat Fluids are clear, colorless and odorless fluids that are characterized by their high thermal stability, high resistance to oxidation, low vapor pressure, high flash points, high dielectric strength and compatibility with virtually all surfaces including metal, rubbers and plastics.

Low Temperature Silicone Heat Transfer Fluids provide consistent temperature as low as –80°C.

Synonyms: low temperature heat transfer fluid, low temperature silicone heat transfer fluid, cold transfer fluid, cold temperature silicone heat transfer fluid, silicone fluid for heating and cooling systems, PDMS heat transfer fluid, refrigerated bath fluids, silicone heat transfer fluid for freeze dryer, cold transfer medium, silicone heat transfer fluids for freeze dryers, liquid phase heat transfer fluid, silicone fluids for freeze drying equipment, linear polydimethylsiloxane, low viscosity PDMS, DMS, low viscosity DM fluids, silicone fluid for lyophilization, freeze drying medium fluid,low temperature bath fluids, low temperature silicone bath fluids, low temp synthetic bath fluids, low viscosity silicones, single fluid process heat transfer fluid, low viscosity polydimethylsiloxane, low viscosity polydimethylsiloxanes, low viscosity PDMS, low viscosity PDM fluids, low viscosity DM fluids, low temperature silicones, silicone low temperature, silicone fluid for constant temperature baths, low VTC fluids, silicone heat transfer fluid for boreholes, heat transfer fluid for boreholes, silicone heat transfer fluid for down hole applications, silicone heat transfer fluids for down hole applications

Low Temperature Silicone Heat Transfer Fluids

PSF-1.5cSt Silicone Heat Transfer Fluid (-70°C to 50°C)
PSF-2cSt Silicone Heat Transfer Fluid (-80°C to 60°C)
PSF-5cSt Silicone Heat Transfer Fluid (-70°C to 120°C)
PSF-10cSt Silicone Heat Transfer Fluid (-60°C to 150°C)
PSF-20cSt Silicone Heat Transfer Fluid (-50°C to 220°C)

* all temperature ranges reflect a closed system.
* cSt is a measure of centistoke or mm2/sec.

Chemical Composition: Linear Polydimethylsiloxane (Dimethylpolysiloxane)

Product Offsets: Baysilone Oil M3, Baysilone Oil M5, Baysilone Oil M10, Baysilone Oil M20, Baysilone KT3, Baysilone KT5, Baysilone KT10, Baysilone KT20, Dow Corning 200® Fluid, 1.5cs, Dow Corning 200® fluid, 2cs, Dow Corning 200® fluid, 5cs, Dow Corning 200® fluid, 10cs, Dow Corning 200® fluid, 20cs

Low Temperature Silicone Heat Fluids are low-viscosity linear Polydimethylsiloxane fluids that are formulated for use as cold and heat transfer mediums in a wide range of applications. Silicone Heat Transfer Fluids are clear, colorless, odorless, and inert to virtually all metals, plastics and rubbers.

The Low Temperature Silicone Heat Transfer Fluids encompass a viscosity range from 1.5cSt to 20cSt* (measures @ 25°C). They are characterized by their low pour points, low temperature stability, wide service temperature range, low viscosity change at temperature (low V.T.C.), low surface tension, long service life, and hydrophobic nature (insoluble in water).

Low Temperature Silicone Heat Transfer Fluids have Thermal Conductivity values between 0.00025 to 0.00034 g/cal/cm/sec °C or 0.10 to 0.15 W/m °C. The Specific Heat values between 0.410 to 0.35 cal/g °C or 2.0 to 1.6 J/g °C Low Temperature Silicone Heat Transfer Fluids have low Viscosity-Temperature Coefficients (V.T.C.), and will experience little viscosity increase even at extremely low temperatures. The Viscosity-temperature coefficient or V.T.C. is a measure of viscosity @ 99°C ÷viscosity @ 38°C. Thus, the lower the VTC #, the lower the viscosity change. This is critical for systems that cannot pump higher viscosity fluids. At extremely low temps, the fluids will still circulate and provide a consistent temperature. For the lowest temperature stability and lowest viscosity, we recommend the PSF-2cSt (PDF).

Applications include: heat transfer systems, low temperature heat transfer systems, heat transfer baths, heat transfer fluid in freeze drying equipment, heat transfer medium in lyophilization thermostats and cryostat fluids, calibration bath fluids for low temperature, silicone fluid for temperature control systems, low temperature closed system baths, low temperature constant temperature baths, low temperature circulating baths, low temperature circulator baths, low temperature refrigerated baths, low temperature closed loop baths

Properties

  • Clear, colorless, odorless fluids & inert fluids
  • Long service life @ recommended service temperatures
  • Low viscosity: will not put strain on pumps.
  • Low pour points
  • Excellent low temperature stability with little viscosity increase (low VTC)
  • Exhibit significantly less viscosity change than petroleum based oils.
  • Formulated from 100% synthetic sources.
  • Long service life when used for recommended temperature ranges.
  • Inert to virtually all bath instrumentation and plastics
  • Environmentally friendly – VOC Exempt & HAP Free
  • Hydrophobic- will not absorb water
  • High dielectric strength

Product Data

Property PSF-1.5cSt PSF-2cSt PSF-5cSt PSF-10cSt PSF-20cSt
CAS # 141-62-8 141-62-8 63148-62-9 63148-62-9 63148-62-9
Appearance clear, colorless clear, colorless clear, colorless clear, colorless clear, colorless
Odorless Yes Yes Yes Yes Yes
Hydrophobic Yes Yes Yes Yes Yes
Viscosity @ 25°C 1.5cSt 2cSt 5cSt 10cSt 20cSt
V.T.C. 0.46 0.48 0.54 0.56 0.59
Soluble in water No No No No No
Specific gravity 0.853 0.873 0.918 0.935 0.950
Pour point -90°C -100°C -90°C -70°C -60°C
Flash point 63°C 75°C 135°C 163°C 232°C
Boiling point 194°C 229°C >200°C >200°C >200°C
Vapor pressure @ 25°C 1mmHg 1mmHg <1mmHg <1mmHg <1mmHg
Specific heat @ 25°C J/g °C 2.0 1.8 1.8 1.7 1.6
Thermal expansion cc/cc/°C 0.00134 0.00117 0.00112 0.00108 0.00107
Thermal conductivity g/cal/cm/sec °C 0.00025 0.00026 0.00028 0.00032 0.00034
Closed system Service temperature -70°C to 50°C -80°C to 60°C -70°C to 120°C -60°C to 150°C -50°C to 220°C
Dielectric constant 2.39 2.45 2.60 2.68 2.72
Dielectric strength volt/mil 350 350 375 375 375

Availability: 1-gallon, 5-gallon pail & 55-gallon drums

View Products Specs:

PSF 1.5cSt | PSF 2cSt | PSF 5cSt | PSF 10cSt | PSF 20cSt


Wide Temperature Silicone Heat Transfer Fluids provide consistent temperature at temps ranging from –50°C to 230°C.

Synonyms: silicone heat transfer fluid, silicone heat transfer medium, silicone cold temperature medium, wide temperature silicone heat transfer fluid, heat transfer flud for temperature control systems, PDMS heat transfer fluid, linear polydimethylsiloxane, low viscosity PDMS, silicone fluid for closed loop bath, silicone bath fluids, silicone bath fluids, synthetic bath fluids, silicone fluid for , silicone calibration bath fluid, constant temperature baths, low VTC fluids, silicone fluid for circulating bath, silicone fluid for temperature gauges, hydrophobic silicone fluid, hydrophobic silicone fluids

Wide Temperature Silicone Heat Transfer Fluids

PSF-20cSt Silicone Heat Transfer Fluid (-50°C to 220°C)
PSF-50cSt Silicone Heat Transfer Fluid (-40°C to 230°C)
PSF-100cSt Silicone Heat Transfer Fluid (-40°C to 230°C)

* all temperature ranges reflect a closed system.
* cSt is a measure of centistoke or mm2/sec.

Chemical Composition: Linear Polydimethylsiloxane (Dimethylpolysiloxane or PDMS)

Product Offsets: Baysilone Oil M20, , Baysilone KT20, Dow Corning 200 Fluid, 20cs, Dow Corning 200 fluid, 50cs, Dow Corning 200 fluid, 100cs.

Wide Temperature Silicone Heat Fluids are linear Polydimethylsiloxane fluids that are formulated for use as cold and heat transfer mediums in a wide range of applications. Silicone Heat Transfer Fluids are clear, colorless, odorless, and inert to virtually all metals, plastics and rubbers found in heat transfer systems.

The Wide Temperature Silicone Heat Transfer Fluids encompass a viscosity range from 20cSt to 100cSt (measures @ 25°C). They are characterized by their low pour points, high flash points, wide service temperature range, high dielectric strength, high resistance to oxidation, low viscosity change at temperature (low V.T.C.), long service life, and hydrophobic nature (insoluble in water).

Wide Temperature Silicone Heat Transfer Fluids have Thermal Conductivity values between 0.00034 to 0.00037 g/cal/cm/sec °C or 0.15 to 0.16 W/m °C. The Specific Heat values are 0.36 cal/g °C and 1.6 to 1.5 J/g °C .j

Silicone Heat Transfer Fluids have low Viscosity-Temperature Coefficients (V.T.C.), and will experience little viscosity increase even at extremely low temperatures. The Viscosity-temperature coefficient or V.T.C. is a measure of viscosity @ 99°C ÷viscosity @ 38°C. Thus, the lower the VTC #, the lower the viscosity change. This is critical for systems that cannot pump higher viscosity fluids. At extremely low temps, the fluids will still circulate and provide a consistent temperature.

Applications include: heat transfer systems, low temperature heat transfer systems, heat transfer baths, calibration bath fluids for low temperature, silicone fluid for temperature control systems, closed system baths, constant temperature baths, low temperature circulating baths, circulator baths, refrigerated baths, closed loop baths

Properties

  • Clear, colorless, odorless fluids & inert fluids
  • Long service life @ recommended service temperatures
  • Low viscosity: will not put strain on pumps.
  • Low pour points: as low as -60°C
  • Thermal conductivity: 0.00034 to 0.00037 g/cal/cm/sec °C
  • Specific heat value: 0.36 cal/g °C
  • Excellent low temperature stability with little viscosity increase (low VTC)
  • Exhibit significantly less viscosity change than petroleum based oils.
  • Formulated from 100% synthetic sources.
  • Long service life when used for recommended temperature ranges.
  • Inert to virtually all bath instrumentation and plastics
  • Environmentally friendly: VOC Exempt & HAP Free
  • Hydrophobic- will not absorb water

Product Data

Property PSF-20cSt PSF-50cSt PSF-100cSt
CAS # 63148-62-9 63148-62-9 63148-62-9
Appearance clear, colorless clear, colorless clear, colorless
Odorless Yes Yes Yes
Hydrophobic Yes Yes Yes
Viscosity @ 25°C 20cSt 50cSt 100cSt
V.T.C. 0.59 0.59 0.59
Soluble in water no no no
Pour point -60°C -55°C -55°C
Flash point 232°C 285°C 315°C
Boiling point >200°C >250°C >250°C
Vapor pressure @ 25°C <1mmHg <1mmHg <1mmHg
Specific heat @ 25°C J/g °C 1.7 1.5 1.5
Thermal expansion cc/cc/°C 0.00107 0.00106 0.00096
Thermal conductivity g/cal/cm/sec °C 0.00034 0.00036 0.00037
Service temperature -50°C to 220°C -40°C to 230°C -40°C to 230°C

Availability: 1-gallon, 5-gallon pail & 55-gallon drums

View Products Specs:

PSF-20cSt | PSF-50cSt | PSF-100

View MSDS:

PSF-20cSt | PSF-50cSt | PSF-100


Wide Temperature Silicone Heat Transfer Fluids provide consistent temperature at temps ranging from 25°C to 300°C.

Synonyms: high temperature heat transfer fluid, high temperature silicone heat transfer fluid, PDMS heat transfer fluid, high temperature silicone bath fluids, high temp synthetic bath fluids, high temperature silicone fluid for constant temperature baths, high VTC fluids, Diphenyldimethylsiloxane, Diphenyl silicone, phenyl silicone, phenyl-based silicone, high temperature phenyl bath fluid, CAS 68083-14-7, high temperature laboratory bath fluid, high temperature heat transfer silicone fluid, high temp phenyl bath fluid.phenylmethyl silicone, phenyl silicone, , thermal silicones, high temperature silicone, clear high temperature silicones, high temperature bath fluid, clear high temp bath fluid, odorless high temperature bath fluid, CAS# 63148-52-7, CAS 63148-52-7, high temperature silicone bath fluid, phenyl silicone bath fluid, high, phenyl heat exchange fluid, thermal silicone, thermal silicone fluids, heating bath silicone, phenyl silicone for heat transfer, high oxidation resistance silicone, phenyl phenylmethyl-dimethyl silicone.

High Temperature Silicone Heat Transfer Fluids

DPDM-400 High Temperature Silicone Heat Transfer Fluid (25°C to 300°C)
PM-125 High Temperature Silicone Heat Transfer Fluid (25°C to 300°C)

* all temperature ranges reflect a closed system.
* cSt is a measure of centistoke or mm2/sec.

Chemical Composition:
DPDM-400: Diphenyl-Dimethylsiloxane (CAS No. 68083-14-7)
PM-125: Phenylmethylsiloxane (CAS No. 63148-52-7)

Product Offsets: GE SF1154, Shinetsu KF54, Dow Corning® 550

High Temperature Silicone Heat Transfer Fluids are Phenyl-class Silicone fluids that are formulated for use as high temperature heat transfer mediums. These fluids are clear, colorless, odorless, and inert to virtually all metals, plastics and rubbers present in heat transfer systems.

High Temperature Silicone Heat Transfer Fluids have Thermal Conductivity values between 0.00032 to 0.00035 g/cal/cm/sec °C. The Specific Heat values are 0.35 cal/g °C for the DPDM-400 Heat Transfer Fluid. The Specific Heat value for the PM-125 is 1.418 kJ/kg K @ 0°C.

High Temperature Silicone Heat Transfer Fluids will remain stable up to 300C in a closed system. These hydrophobic fluids are characterized by their high flash points, high thermal stability, high resistance to oxidation, long service-life, high dielectric strength, and high V.T.C. (Viscosity-to-temperature coefficient).

Unlike conventional silicone fluids, the viscosity of the High Temperature Silicone Heat Transfer Fluids will lower very quickly as soon as they are heated. This makes them excellent choices for systems that need to pump the fluid at high temperatures. Under heat, the High Temperature Silicone Heat Transfer Fluids will easily circulate and provide a consistent temperature.

Applications include: high temperature heat transfer systems, high temperature heat transfer baths, high temp calibration bath fluids, silicone fluid for temperature control systems, high temp closed system baths, constant temperature baths, high temperature circulating baths, circulator baths, high temperature closed loop baths

Properties

  • Clear, colorless, odorless fluids & inert fluids
  • Long service life @ recommended service temperatures
  • Low viscosity at high temperatures: will not put strain on pumps
  • High Flash points
  • High Thermal Stability
  • Thermal conductivity: 0.00032 to 0.00035 g/cal/cm/sec °C
  • Low vapor pressure
  • High Resistance to oxidation
  • Exhibit significantly less viscosity change than petroleum based oils.
  • Formulated from 100% synthetic sources.
  • Long service life when used for recommended temperature ranges.
  • Inert to virtually all bath instrumentation and plastics
  • Environmentally friendly: VOC Exempt & HAP Free
  • Hydrophobic- will not absorb water

Product Data

Property DPDM-400 PM-125
CAS # 68083-14-7 63148-52-7
Appearance clear, colorless fluid clear, colorless fluid
Odorless Yes Yes
Hydrophobic Yes Yes
Viscosity @ 25°C 400cSt 125cSt
V.T.C. 0.82 0.76
Pour point -30°C -51°C
Flash point 315°C 315°C
Vapor pressure @ 25°C <1mmHg <1mmHg
Thermal conductivity g/cal/cm/sec °C 0.00032 0.00035
Specific heat @ 25°C cal/g °C 0.35 1.498 kj/kg K
Thermal expansion cc/cc/°C 0.00073 0.00075
Service temperature 25°C to 300°C 25°C to 300°C

Availability: 1-gallon, 5-gallon pail & 55-gallon drums

View Products Specs:

DPDM-400cSt | PM-125cSt

View MSDS:

DPDM-400cSt | PM-125cSt