Peco N scale track cleaning problem after ballasting

[videobruce]

I have been unable to fully clean off the residue of Elmer's glue (assuming that is what it is) off the track that has changed the appearance from bright Nickle Silver to a 'brass' look causing poor electrical contact. Apparent when looking at track that hasn't been ballasted.

I've used a non abrasive 'track erasure' and Mineral Spirits to no avail. Any ideas? I have ordered two different abrasive track cleaners, one being Pecos.

 

[santafewillie]

I used to use a single-edged razor blade or a flat Exacto knife (#18) to scrape it off. No more abrasion than a Walther's Brite-Boy. I now use an empty Elmer's Glue bottle with the pointed tip to apply the white glue/water mixture and no longer get glue on the rail surface.