MANVAR-65 ER is an electric insulating heat curing impregnating varnish based on alkyd phenolic resin.The material does not contain by recipe
substances listed in Restriction of Hazardous Substances (RoHS) Directive (2002/95/EC).
CProolpouerr taynd appearance [*]
Solids content [*]
Viscosity at 230C [*]
Density at 230C
Flash point by closed cup
Compatibility with Thinner 205 [*]
Storage life [*]
DBI 1001 [**]
DBI 1022 [**] 1.5 g/1300C/2 h
DBI 1015A [**] DIN 53211/cup No. 4
DBI 1001 [**]
DBI 1006 [**]
When stored in original sealed container at RT
Brown and clear
1 : min 1
AREAS OF APPLICATION
In electrical machines, MANVAR-65 ER is used both for manufacturing and repairing the following Thermal class F (130) objects:
-Drives in the chemical industry
-Drives for ships.
PROPERTIES OF CURED MATERIAL
The cured material displays very good film formation and resistance to chemicals. The relatively elastic varnish film has very favourable temperature
cycling behavior. A reduction in the degree of hardness of enamelled wires generally used does not occur if the components are property impregnated.
MANVAR-65 ER is processed by all conventional impregnating methods, such as dipping, rolling or flooding. It can also be processed under vacuum. In this case, the vacuum should not drop below 20 mbar to avoid high solvent evaporation. The most advantageous impregnating method in each case depends on the given technical possibilities of the plant, the structure of the components, and the demands placed on the object to be impregnated under operating conditions.
MANVAR-65 ER displays low susceptibility to the influence of foreign substances, such aspunching grease, oils or primers, however, contamination of the varnish should be avoided as much as possible. A#er drainage time of 15-45 minutes at room temperature, the product is cured in the circulating-air oven at the temperatures and periods of time given. For large objects or those with a complicated winding structure a two-stage curing process is recommended to ensure removal of the solvents..
RECOMMENDED CURING CYCLE
For stationary windings
For Rotating Windings
: 6-8 h / 1200C or 4 -6h / 1300C
: 8 h / 1300C or 5 h /1400C
|IEC 60216 by weight loss measurement ||30% weight loss||&C||120|
MANVAR-65 ER is a flammable liquid. Use foam, CO2 or dry chemical powder for fire fighting. Inhalation and direct contact with the skin should
be avoided. In case of contact, the a!ected area should be washed with soap and plenty of water. For further details ask for our material safety
data sheet 2-15.
CURED FILM PROPERTIES
Drying in thin film
Curing in thick layer [*]
DBI 3031 [**]
DBI 3007 [**] 20g/ 1200C / 10 h
4 h at 120 &C
Top Bottom Inside
at 140 &C
At 130 &C
Tack free film with uniform flow
S1 (smooth) UI (Tack free) I 3.1 (leather like rigid, no bubbles)
1 & 4 kg in tin containers 21 & 185 kg in M.S. containers
0.80 & 4 in tin containers 20 & 160 kg in m.s. containers
This information is intended only for general guidance in the application of our product. It has been obtained by careful investigation and represents the present state of our knowledge and experience. Because of the large number of possible methods of application and processing we are not able to assume responsibility in any one particular case for either the technical results or the patent rights situation applicable to the country under consideration.
Dielectric strength as per IEC 60455-2
Volume resistivity at 500 V DC as per IEC
Dielectric constant at 30 V/1 kHz as per IEC
Dielectric loss factor 30 V/1 kHz as per IEC
afer 24 h water immersion at RT
afer 168 h water immersion at R.T.