A standard 4 door sedan should take on average 2oz of our ceramic spray for coverage and is on average 180 square surface feet. With that, 1oz of our product should cover between 90-100 square feet.
Large RV’s can have a really large square footage. Below is an example of the largest RV typically on the road. Adjust sizing and estimate accordingly.
- 40’ long
- 8.5’ wide
- 12’ high
So one side = 4012 = 480 (2 sides = 960) Back is = 8.512 = (102) Front = About half of the back (50) Top would be 40*8.5 = (340 not necessary however some people might want to do it.
So just the sides for the largest RVs would take (960+102+50 = 1,112) Which would require a 16oz bottle or two 8oz bottles.
All sides would take approx 1,452 square feet and thus need a 16oz bottle or two 8oz bottles.
Its all about square footage. Are they going to do the whole hull while it is out of the water. You may need to look up the manufacturer. You need to know how much of the boat they plan to cover. So use the 100 square foot rule to 1 ounce and respond accordingly
CAR REFERENCE GUIDE
Below is a pdf of car types you can use as reference for square footage to give a better answer.