Why Use Gtechniq Iron & General Fallout Remover? W6 Iron & General Fallout Remover is formulated to offer you the safest, most effective method of removing potentially damaging contamination most commonly found on your vehicles paintwork and rims. In addition to its exceptional fallout removal function, W6 has a corrosion inhibitor and additive designed to combat the effects of acid rain. It is a thick gel-like formula that will cling to vertical surfaces, degreasing them. Quick Overview: Dissolves fallout and brake dust fast Does not damage coatings Effective on wheels and paintwork