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Mỡ chân không Dow Corning High Vacuum Grease loại 150g

Giá bán: Liên hệ

Product Information
Specialty
Lubricants

FEATURES
• Low volatility to hold deep
vacuums
• Resists oxidation
• Nonmelting
• Good thermal stability
COMPOSITION
• Stiff, nonmelting silicone material

Dow Corning®
High-Vacuum Grease

Grease designed for sealing and lubricating vacuum and pressure
systems
APPLICATIONS
• Seal and lubricate chemical processing equipment
• Lubricate plug valves, control valves, flow meter bearings, ceramic plug cocks
and fire extinguisher valves
• Maintain vacuum and pressure systems
• Lubricate water-treating equipment
• Lubricate synthetic rubber gaskets and seals in high-temperature applications
• Lubricate laboratory equipment
• Lubricate O-rings on binoculars and telescopes
• Help prevent fogging of delicate lenses
TYPICAL PROPERTIES
Specification Writers: Please contact your local Dow Corning sales office or your Global
Dow Corning Connection before writing specifications on this product.
Method Test Unit Result
Color Translucent white

ASTM D 217 Penetration,

unworked mm/10 185
worked 60, max mm/10 205
worked 100,000 mm/10 227
Service Temperature Range1 °C (°F) -40 to 204 (-40 to 400)

Fed Std 791 Bleed, after 24 hr at

200°C (392°F), max percent 0.05

Fed Std 791 Evaporation, after 24 hr at

199°C (390°F), max percent 1.1

ASTM D 70,
ASTM D 1217 Specific Gravity at 25°C (77°F) g/cc 1.0
ASTM D 2265 Drop Point °C (°F) >300 (572)
Water Spray Off percent 1.65

1
Estimated service temperature range based on product formulation and laboratory testing. Actual service
temperature range is dependent on other factors including the specific application environment.
DESCRIPTION
Dow Corning® High-Vacuum Grease is
a stiff, nonmelting silicone lubricating
material that maintains its consistency
from -40 to 204°C (-40 to 400°F). It is
used in applications similar to those
for Dow Corning® Stopcock Grease,
and is the recommended replacement
for that product.
Dow Corning High-Vacuum Grease is
recommended for vacuums reaching
between 1 x 10-5 and 1 x 10-6 mm Hg. It

is recommended that the grease be
preconditioned under vacuum and
temperature until these limits are
reached. For details on attaining higher
vacuums, please contact Dow Corning
Customer Service at 1-800-248-2481.
LISTINGS/SPECIFICATIONS
• FDA 21 CFR 175.300
• USDA – Approved for incidental
food contact in federally inspected