Sec - 6 (Tank Bottom Lining Selection)

Question 1

Tank bottom linings can generally be divided into two classes

Answer 1

1- thin-films (Dry Film Thk. < 20 mils or 500 µm)

2-Thick-films (Dry Film Thk. > 20 mils or 500 µm or more)

Question 2

Thin-film tank bottom lining systems are frequently based on ,,,,,,

Answer 2

epoxy or epoxy-copolymer resins

Question 3

,,,,,,, are often applied to internal tank surfaces

Answer 3

Inorganic zinc (zinc silicates)

Question 4

Thin-film of Inorganic zinc (zinc silicates) are often applied to internal tank surfaces at ,,,,,,

Answer 4

3 to 5 mils dry film thickness (DFT)

Question 5

Thin Film when properly selected, applied, and not damaged, the life of thin-film linings can be,,,,,

Answer 5

> 20 years.

Question 6

There are currently two types of thick systems being specified

Answer 6

1- Fiber glass reinforced plastic (FRP) laminates

2-Reinforced thick-film linings

Question 7

FRP systems consist of either a ,,,,,, or ,,,, roving embedded in a resin

Answer 7

1.5 oz glass mat

chopped fiberglass