4228-55ML

4228 Technical Data Sheet Red Insulating Varnish ISO 9001:2008 Registered Quality System. Burlington, Ontario, CANADA SAI Global File: 004008 4228-Liquid Description Our 4228 Red Insulating Varnish is a highly insulating coating with excellent arc and corona resistance. This low viscosity, one-part varnish coating is easy to use and adheres well to many substrates. Applications & Usages The 4228 insulates transformers, coils, armature, motor windings, and various electric generator parts against arc and corona. As well, it protects these parts from corrosion and moisture. Features & Benefits • High dielectric strength—3 000 V/mil (dry); 1 500 V/mil (wet) • Insulation Class H—Suitable for service up to 180 °C • Excellent oil and moisture resistance • Excellent finish—tough, flexible, glossy, and durable red coat • Good water and salt water resistance • Good adhesion • High gloss Usage Parameters Properties Tack Free Recoat Time Dry to Handle Drying Time @25 °C [77 °F] Drying Time @80 °C [176 °F] Theoretical coverage a) per gal for 25 m [1.0 mil] Recommended Thickness Shelf Life Temperature Ranges Value 15–30 min 4h 30 min 24 h 1h