Ready to use out of the container, no dilution necessary. Apply to aluminum/stainless steel/chrome, wait 1 ½ to 2 minutes – DO NOT ALLOW TO DRY, rinse with hi-pressure cold water 2800+ psi. Do not spray TCI 503HD directly onto a hot metal surface since it will alter the chemistry – resulting in staining. Apply with all plastic sprayer or you can brush it on or both. It is formulated to remove dirt & corrosion, not etching highly polished aluminum.
TCI 503 HD contains No hydrofluoric acid. It will NOT DULL any polished surface and doesn’t leave a chalky film. Biodegradable and environmentally friendly.