Answer
Sep 29, 2024 - 10:07 AM
The only products that we have that may work but we have not tested to remove hard water stains are SealGreen Efflorescence Remover or SealGreen Rust Stain Remover. You can buy from our site a small amount of the products to evaluate. We do not offer any guaranties of any kind as to the performance of the products when trying to remove water stains.
Hard water stains are chemicals in the water and when the water dries it leaves the chemicals on the surface.
Source: SealGreen Website
