Can I use Rust Aid to remove red clay stains from brick siding on my home?

Slim - Goof Off Rust Remover is formulated to react with oxidized iron to neutralize and remove tough rust stains rather than clay and could discolor the brick. Always test products first in a small inconspicuous spot before applying to the entire area. You can always call our Goof Off helpline at 877-466-3633 when you have questions about the product application and so we can help you get the most out of our products.