SYNTHITE AC-43
▪ Air drying varnish
▪ UL Recognized (file OBOR2.E317427 and OBJS2.E317429)
▪ Very fast air drying
▪ Excellent chemical resistance
▪ Solderable
▪ Excellent adhesion
▪ Good penetration
Description
SYNTHITE AC-43 is a high temperature resistant, modified polyester air-drying varnish, suitable for class H
applications. SYNTHITE AC-43 air dries very quickly giving a very tough and flexible coating, and even faster drying
times are possible with a short bake.
Compatible with the following magnet wires coatings: Amide-Imide, Polyamide, Polyurethane-Polyamide, Polyvinyl
Formal, Polyurethane, Epoxy, Polyvinyl Formal-Polyamide, Polyimide, Textile, Polyester Amide-Imide, Polyester. No
corrosive effect on copper.
Application
Clean clear protective coating for stators, form wound coils, transformers, resistors, capacitors, printed circuit board
assemblies.
Processing guidelines
SYNTHITE AC-43 may be applied by dipping, brushing or spraying as supplied. It will air dry in 1 hour but can be
baked to improve its chemical and oil resistance.
For fast conveyor application, the following cycle is recommended:
1. Preheat units for 10 minutes at 110°C.
2. Dip into the varnish for 30 seconds.
3. Drain 10-20 minutes.
4. Bake 60-90 minutes at 110°C.
NB: For this type of cycle SYNTHITE AC-43 should be diluted 10-15% with DOLPH’S T-100 or T-200 thinner.
The pre-heating, even if recommended, is not absolutely necessary
