It left a white haze on my red brick. What is that and how do I remove it?

Do not use on paints, stains or bricks containing iron oxide pigments (red colorant). We recommend trying any new product first in an inconspicuous spot before applying to the entire area. Please contact Goof Off helpline at 877-466-3633 if we can better assist you.

The Rust Aid is designed to neutralize the color of iron oxide.  If there is a stain on the brick then most likely an iron oxide pigment was used in the stain. The Rust Aid will also neutralize the color of iron oxide pigment.