Can it be used on brick pavers

Yes! This is commonly used on brick pavers, but we highly suggest checking out the F9 Cookbook for appropriate dilutions and applications. 

Can this be used on glas pool tile with heavy calcium build up

Hi there! While we would lean towards yes, we would urge you to explore the F9 Cookbook App (you can find it in the Apple or Google Play Store) and find the appropriate dilution and application for specifically glass tile, and be aware of any surounding pavers or stone as it will etch at stronger ratios. 

Will they work on stainless steel Material have a building that is made of stainless steel with water stains

We would highly encourage you to check out the F9 Cookbook for the exact ratio and chemicals to use for your specific scenario. You can get a hard copy HERE or download it from your app store. 

Is this safe for removing hard water buildup on natural slate in a shower?

Yes, F9 Efflorescence is often used to remove buildup on stone, but we would urge you to refer to the F9 Cookbookto find the correct ratio of dilution to avoid etching the stone. 

Does this take years of hard water on brick

It definitely can help with that if you have a calcium buildup on brick. However we highly suggest determining what sort of buildup you are trying to remove before applying this product. If you would like to discuss with one of our product specialists, you can send some images of the affected area to hello@windowcleaningresource.com and we'll be able to make the best suggestion for you.

Will it kill my plants?

Not diluted, yes, and we would suggest not using this around plants. If you must use this around plants, we suggest watering thoroughly, wetting the plants down, and again, watering thoroughly.

Can this be used indoors

It definitely can be, but you want to make sure you are using the proper dilution and althought it has a lower fume rate than comparable products, we always suggest making sure you are in a well ventilated area. Also keep in mind which surface you are planning to clean as this is not suitable for polished or glazed surfaces, NOT for use on metallic or other synthetic coatings or films. Do not use on acrylic and polycarbonate sheet glazing. Always perform a test to ensure compatibility.

Is this something I can use to remove oxidization on glass?

We would not recommend this product to be used on glass. Although it is safe for glass, it is intended to clean concrete.

will your product work on Colored stamped concrete?

Yes!

Do you apply this with a rolloer and then wash off or?

No, use a pump sprayer and rinse. Refer to the f9 Cookbook for proper dilution.

Would this work to rejuvenate yellowed glass block on our pool wall?

To get a proper opinion on this, please join the F9 Professionals group on Facebook, where the inventor of these products is readily accessible.