After cleaning my seats/getting my seats wet, there are white marks and powder on the fabric. What is that from?
Over-saturation of the seats from cleaning or spills may leach out the flame-retardant chemicals used in automotive fabric. This flame-retardant is called Boron, or zinc borate. It will look like salt stains on fabric when dry after being wet. This occurrance is rare, but still be cautious. To remove the residue, try lightly extracting the fabric again and allow it to dry. This problem will be most noticeable on black or dark fabric.
