Rust-proofing wax

Today is the first time I have understood what I was looking at several times while inspecting my NMS Passat.

I saw some on the back of the headlights weeks after I bought the vehicle as used. I thought some of the magic was leaking out. They still worked so I ignored the issue.

Poking around the underside of the vehicle today I noticed this yellow waxy substance on many areas. It appears as a solidified drip.

Thanks to pedorro for asking a good question.

Is it Ankor, Cosmoline or something else?

They is a regular thing here in Arizona. All the VWs (at least from that era, MKIVs) have dirty wax on the door jambs from it melting in the doors and leaking out.

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No idea of the exact spec, it's just a standard solidifying body cavity wax.

Yours
Vern