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      位置:維鑫電子 >> 產品展示 >> 凡立水>> B-277-2 VARNISH

      B-277-2 VARNISH

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      The Ranvar B277 is a fast drying
      electrical insulating varnish for use up
      to180°C.
      Uses
      - Impregnation of stators, coils and
      transformers
      Cured Properties
      The Ranvar B277 can be baked at
      110°C to accelerate the dry time. It has
      excellent moisture resistance.
      Recommended Cure
      1 – 2 hours at 25°C (77 °F)
      –OR-
      30 minutes at 110°C (230°F)
      Features and Benefits
      - Low viscosity
      - Can be thinned with low cost solvents
      - Offers thermal ratings from 130° C to
      180° C
      - Fast drying
      Application Methods
      - Dip and Bake
      -
      Storage/Shelf Life
      This resin should be stored at a 25°C
      (77°F) in a dry controlled environment
      out of direct sunlight. This material
      should be suitable for use stored under
      these conditions in the original sealed
      containers for twelve (12) months from
      the date of shipment.
      Properties of Material Supplied
      Test Value Units
      Viscosity @ 25°C (77°F)
      (ASTM D2196)
      400 – 800 Cp
      Percent non-volatile matter
      (ASTM D115)
      49 – 51 %
      Flash Point (ASTM D93) 27 (81) °C (°F)
      A member of
      Ranvar B277Air Dry Insulating Varnish November 2, 2007 Rev.1
      TYPICAL PROPERTIES
      Test Value Units
      Typical Dry Time @ 25°C (77°F) 20 Minutes
      Recommended Thinner Xylol
      Electrical Properties – Dried 24 hours at 25°C (77°F)
      Test Value Units
      Dielectric Strength – AS MADE
      (ASTM D149)
      2200 Volts/mil
      Dielectric Strength after 24 hours in
      water (ASTM D149)
      1800 Volts/mil
      Film thickness 2 mils
      UL Recognized Insulation Systems (E52215)
      Class Systems
      Class 130 MEGA I
      Class 155 B2
      Class 180 MEGA III

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