4228-1L Red Insulating Varnish

https://www.mgchemicals.com/products/conformal-coating/varnish-for-electronics/red-insulating-varnish/

4228 is a highly insulating coating with excellent arc and corona resistance. It is a low viscosity, 1-part coating that is easy to use and adheres well to many substrates.

This red insulating varnish also protects transformers, coils, motor windings, and various electric generator parts against arc, corona, 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 saltwater resistance
Good adhesion
High gloss