Your wax is only as strong as its bond!
After any correction process, or glaze fillers you will have oily deposits across the paintwork. This makes it difficult for a wax to fully adhere to, in turn shortening the waxes lifespan in performance.
Eraser Primer removes all greasy contaminants to give the very best surface for a wax to be laid down onto.
Wipe on, haze, wipe off.