Power Transformer Residue

[Exaliftin]

I am wondering if it is normal to have this all over the transformer and is there an easy way to clean it off? Thanks

[Paul Birkeland]

Yes, it is very normal, this varnish is what holds the transformer together.  If you use a solvent to remove it, you will risk having the transformer delaminate on you.

Most folks just paint right over it with a flat black paint. 

[Exaliftin]

Thanks for the quick response

[johnsonad]

It goes without saying but make sure you tape off the areas before painting. The cardboard braces that come with the transformer work great when painting.

[mcandmar]

Place a piece of sandpaper on a hard flat surface like a pane of glass, then slowly sand the sides of the transformer to remove any excess varnish.  That will leave you a nice clean surface which once painted will look perfect.