Industrial Coating

DVB-2122S Non-solvent-based insulation varnish

usage
Impregnation of medium-sized motors and armatures

DVB-2122S is an insulating varnish for impregnation that mainly consists of unsaturated polyester resin. It features outstanding adhesiveness and electrical properties. This product features type F (155 ℃) heat resistance and is suitable for impregnation of high speed rotors in medium-sized motors.

specification

Paint type
Two-component unsaturated polyester resin
Drying time
Drying time
Product Features
1. It features outstanding heat resistance. (Type F: 155 ℃) 2. It features outstanding rust resistance. 3. It features outstanding electrical properties. 4. It features outstanding adhesiveness. 5. It features outstanding compatibility with magnet wires.
Thinner
DTB-7302
Storage stability (40℃) (A + B)
Over 7 days
Exterior
Transparent light brown
Viscosity
1.2 - 3.0 POISE
Curing conditions
2 - 4 hours at 120 - 140 ℃
Specific gravity
1.10 ± 0.02
UL-certified
Not certified
Gel time (120 ℃)
3 - 5 min.
Storage conditions
Store in a shaded indoor space with sufficient ventilation.
Mixing ratio
A : B = 100 : 1 (Weight)
Shelf life
6 months from the manufacturing date (when storage conditions are met)

PRODUCT PROPERTIES (PHYSICAL PROPERTY DATA)

Breakdown voltage
Above 9 KV (Twist Pair method, MW-5 Coil)
Volume resistivity
At least 5.0 × 1015 Ω㎝

how to use

How to use
1. Mix evenly after adding the substances according to the designated mixing ratio.
2. Preheat the substrate at 80 - 120 ℃ for 10 - 30 minutes to eliminate cutting oil and debris from the substrate.
3. Maintain the surface temperature of the substrate at 40 - 50 ℃.
4. Impregnate it in well-mixed varnish for 2 - 5 minutes. (Impregnation in the vacuumed state can increase the penetrance.)
5. Leave until the varnish does not fall off from the substrate (10 - 30 minutes at room temperature).
6. Dry according to the designated curing conditions.
Remarks
1. Liquid B (hardener) is sensitive to heat. So store it in a refrigerated space.
2. When the varnish temperature is high, there is a risk of varnish turning into gel. So maintain the
varnish temperature inside the tank at below 30 ℃.
3. Instructions above may vary depending on the type of substrate and the painting line conditions.