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Description for Dow Dowsil 550 Fluid
• Polyphenylmethyldimethylsiloxane • Low volatility • High flash point • Radiation resistance • Hydraulic arrestors (snubbers) • Hydraulically actuated valves<br/>Brand Dowsil Chemical Resistance Excellent oxidation resistance Application Type Lubricant 1 Part or 2 Part 1-Part Material Form Liquid Substrate Metals, Ability to swell silicone rubber Industry Powertrain, Hydraulic arrestors (snubbers), Hydraulically actuated valves Manufacturer Dow Chemistry Polyphenylmethyldimethylsiloxane Viscosity (cPs) 125, 0.76 Oxidation Resistance Excellent oxidation High Temperature Resistance (°C) <232, Excellent heat transfer characteristics, Excellent temperature resistance, Heat resistance Low Temperature Resistance (°C) -57 Other Resistance Radiation resistance, 1.7e8 Light Refractive Index (RI) 1.4900 -
Technical Data for Dow Dowsil 550 Fluid
Overview
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Chemical Resistance
- Chemical Resistance - Excellent oxidation resistance
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Application Type
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1 Part or 2 Part
- 1-Part
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Material Form
- Liquid
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Substrate
- Metal - Metals
- Silicone Rubber - Ability to swell silicone rubber
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Industry
- Powertrain
- Industrial - Motion dampening, Snubbers, Valves
- Hydraulic - Hydraulic arrestors (snubbers), Hydraulically actuated valves
- Construction - Construction of snubbers, Construction of instruments
- Other - Other applications where radiation exposure exists
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Chemistry
- Silicone - Polyphenylmethyldimethylsiloxane
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Cure Method
- None
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Brand
- Dowsil
Specifications
Cure Specs
Viscosity (cPs) 125, 0.76 Test Method Material Resistance
Non-Corrosive No corrosion of metals Oxidation Resistance Excellent oxidation High Temperature Resistance (°C) <232, Excellent heat transfer characteristics, Excellent temperature resistance, Heat resistance Test Method Low Temperature Resistance (°C) -57 Test Method Other Resistance Radiation resistance, 1.7e8 Test Method Vibration Resistance/Shock Resistance Shock absorbing Conductivity
Thermal Conductivity (W/m°K) 0.00035 (g-Cal/cm2-sec-°C) Test Method Hardness
Flexibility Good compressibility Other Properties
Light Refractive Index (RI) 1.4900 Test Method Specific Gravity 1.070 Test Method Flash Point (°F) High, >586.4, 525.2 Test Method Business Information
Shelf Life Details When stored in their original, unopened containers at 25°C (77°F), DOWSIL™ 550 Fluid have no known limits to useful life. When stored in its original, container at or below 32°C (90°F), unopened DOWSIL™ 710 Fluid has no known limit to its useful life. Dow warrants product shelf life up to 60 months from date of manufacture., When stored in their original, unopened containers at 25°C (77°F), DOWSIL™ 550 Fluid have no known limits to useful life. When stored in its original, container at or below 32°C (90°F), unopened DOWSIL™ 710 Fluid has no known limit to its useful life. Dow warrants product shelf life up to 60 months from date of manufacture. Shelf Life Temperature (°F) <140, 77, 90 Shelf Life Type From date of manufacture, From date of manufacture Shelf Life (mon) 60, 60 -
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Best Practices for Dow Dowsil 550 Fluid
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Comparable Materials for Dow Dowsil 550 Fluid
Spec Engine® Results
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Viscosity Test Methods
Viscosity | Test Method | Temperature |
---|---|---|
125 cPs | These values are not intended for use in preparing specifications | 25°C |
0.76 | These values are not intended for use in preparing specifications; /Temperature Coefficien |
High Temperature Resistance Test Methods
High Temperature Resistance | Test Method |
---|---|
<232°C | High-temperature stability |
Excellent heat transfer characteristics | |
Excellent temperature resistance | |
Heat resistance |
Low Temperature Resistance Test Methods
Low Temperature Resistance | Test Method |
---|---|
-57°C | Low-temperature applications |
Other Resistance Test Methods
Other Resistance | Test Method |
---|---|
Radiation resistance | |
1.7e8 | Radiation Resistance |
Thermal Conductivity Test Methods
Thermal Conductivity | Temperature | Test Method |
---|---|---|
0.00035 (g-Cal/cm2-sec-°C) | 50°C | These values are not intended for use in preparing specifications |
Flash Point Test Methods
Flash Point | Test Method |
---|---|
High | |
>308.0°C | These values are not intended for use in preparing specifications |
274.0°C |
Light Refractive Index (RI) Test Methods
Light Refractive Index (RI) | Temperature | Test Method |
---|---|---|
1.4900 | 25°C | These values are not intended for use in preparing specifications |
Specific Gravity Test Methods
Specific Gravity | Temperature | Test Method |
---|---|---|
1.070 | 25°C | These values are not intended for use in preparing specifications |