SynChem – Resins & Varnishes AQUA-THERM BC-380/870-D

AQUA-THERM BC-380/870-D is a white, water-based varnish with low environmental impact.

AQUA-THERM BC-380/870-D has the following features:

  • UL approved
  • very good bond strength
  • very good abrasion resistance
  • very good resistance to moisture and chemicals
  • good flexibility
  • Freon R22 resistant
  • high flash point (over 100 °C)
Download datasheet

Application

AQUA-THERM BC-380/870-D is mainly used for impregnation of:

  • stators
  • rotors
  • transformers
  • hermetic motors
  • electrical devices
  • laminations

Standards

  • UL-approved, File OBOR2.E317427 and OBJS2.E317429
  • Thermal class 180 °C acc. UL 1446
magnet wire Twisted Pairs
 MW35-C  180°C

 

Delivery forms

AQUA-THERM BC-380/870-D is supplied in 20 kg containers and 200 kg barrels.

Storage

Store in a cool dry place (max. 30 °C) away from direct sunlight. Protect from moisture and humidity. Shelf-life is 9 months when stored in closed original container at max. 30 °C. Being a water-thinnable emulsion with a very low co-solvent content, this prouduct suffers from cold and must be stored at temperatures included between 0 and + 30 °C.

Hardening

Typical curing times:

  • at 170 °C 2-4 h
  • at 150 °C 3-5 h
  • at 135 °C 5-8 h

Curing times after reaching the object temperature.

Protection

Use in well ventilated area, avoid contact with skin and eyes and wear protective clothes. For more details see the SDS.

Processing

AQUA-THERM BC-380/870-D can be used as supplied or diluted up to 70 % with tap water depending on the final objects. It is recommended to mix the product in the original container before use. It is recommended to mix the product into the tank for some minutes twice a day to avoid sedimentation.

Technical data

Mechanical
Property Unit of measure Conditions  Value  Test method 
Bond strength  25 °C helical coil / MW 35-C >170 IEC 61033B
Bond strength  155 °C helical coil / MW 35-C >38 IEC 61033B
Thermal
Property Value  test method 
Thermal class  H (180 °C) MW 35-C
Liquid phase
Property Unit of measure Value  Test method 
Viscosity  50-70 ISO Cup 3 / 25 °C
Specific density  g/l  1.04 25 °C
Flashpoint  °C  >100 SETA closed cup
Electrical
Property Unit of measure Conditions  Value  Test method 
Dielectric strength  kV/mm  0.025 mm film thickness 100 ASTM D–115