Cleans difficult stains without harsh chemicals

We do not recommend A-maz on shower glass that has the Diamon Fusion Coating, as it will remove the Diamon Fusion Coating. However, if your glass does not have the coating it will surely remove calcium or hard water stain and/or spots.

A-maz Water Stain Remover is safe to use on: 

House Windows|
Windshields
Shower Doors
Fiberglass
Chrome
Porcelain
Tile / Grout
Oxidized Plating
Brass
Copperware
Bath Enclosures
Sinks
Toilets
Fixtures
Stove Tops
Oven
Grills
Pool Tile

https://a-maz.com/products/water-stain-remover-1

This product will not work on bullet proof glass made from laminate polycarbonate, typically called Lexan; Tuffack, or Cyrolon. 

What products can you use A-maz Water Stain Remove On? 
Ceramics, Glass and Metals. We recommend you do a test on an area to ensure this product will not scratch the surface. This holds true for any surface cleaner. If applying to stainless steel apply with the grain of the surface.

We carry this product in our shop and have it readily available to purchase.