chapter 3 essential coatings chararcteristics

Question 1

the water _______ is extremely small with the ability to penetrate into and _________ most organic coatings

Answer 1

molecule

through

Question 2

High-performance coatings must withstand continuous ____ in water and seawater without blistering cracking, softening, swelling, or loss of _______.

Answer 2

immersion

adhesion

Question 3

water absorption refers to the amount of water that is _____ ___ and ______ within the molecular spaces of the coating.

Answer 3

picked up

retained

Question 4

once the coating has formed, the water comes to _____ with the atmosphere, ______(evaporating) under dry conditions and ______ water when subject to high humidity or immersion.

Answer 4

equilibrium
desorping
absorbing

Question 5

the moisture vapor transfer rate is the _____ at which _____ ____ will _______ through a protective coating when there is a difference in moisture vapor pressure on one side of the coating compared to the other side.

Answer 5

rate at which moisture vapor will transfer

Question 6

osmosis is the _____ of water through a _________ membrane from a solution of ______ concentration to a solution of greater concentration.

Answer 6

passage
semipermeable
less
greater

Question 7

electroendomosis is the _____ of water through a ________ membrane by an electrical potential in the direction of the pole with the same electrical charge as the membrane

Answer 7

forcing

semipermeable