Can it be used on stainless appliances and glass cook tops?

We would not recommend this for use on any surface that is NOT polished, and definitely would not recommend it for any surface used to prepare foods, or will exceed temperatures of 90 degrees Farenheit. 

How long does this product last on windows? How often will I have to reapply to my outside windows. I have a customer asking.

Hi Mitch! This product can last for years, depending on cleaning, enviornmental exposure, and abraision. For example, a window under an overhang will hold the application longer than a window that gets constant wind or trees brushing it.

Would this product make the glass slippery to walk on? We have a glass veranda, which we use as a deck/patio.

NO, actually the coating makes the glass anti-slip because when you step on the water, it displaces on the glass. HOWEVER, we advise the coating to be perfectly polished in and there is no excess, because it can be slippery.

How often do I have to reseal my shower door?

Hi Bud! How often this needs to be used really depends on how hard the water is, and time can vary from 2 weeks to a few months.

can this product be used on automotive glass , as well as other products you sell ?

Yes, this product can be used on automotive glass. However it is important to read all instructions for proper application as Invisible Shield cannot be applied in direct sunlight, super hot, or wet/rainy days. We would also exercise caution with any product, on glass surfaces that are coated with tint or other overlay treatments.

Can invisible shield be used on granite counter tops? Does it work well in this application?

Invisible Shield only mentions glass, no other surfaces. It may work but we don't recommend using it on surfaces aside from glass.

wha t is the coverage for invisible shield product - how many sq feet will the product. cover per oz??

One 16 oz bottle will cover approximately 500 square feet. 1oz : 31.25 feet.

What are other ways to apply this product? Specifically on how to reach higher windows?

You can wrap a clean, dry towel around a pole tip, or if you have a Maykker Handy Sleeve, you can attach the towel to the velcro.

Can I apply this with my scrubber or what are other ways to apply this product?

Hi Miguel, you can apply this with a clean, soft cloth or towel or with a fine mist sprayer. We don't recommend you use your scrubber, a clean, dry towel would definitely be better.