I contacted someone that I know who worked in the manufacture of latex paint for 35 years. He said that about 50% by weight of the mixture is water. Except for white paint, a small amount of non-water tint is added for color. Since water weighs 8.345 pounds per gallon, the weight of only the water in a gallon of latex paint is approximately 4.17 pounds. When the paint dries, all the water has evaporated and the remainder should weigh a little over 4 pounds (not including the container).
He also said that a few of the factory's customers have been known to water down the paint in order to save money.
Even though half the paint by weight is water, the non-water ingredients are petroleum based so are lighter in weight than the water and therefore take up most of the volume.
.What does a gallon of latex paint weigh after the water evaporates?
Depends on how much solvent and water was in it...
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ReplyDeletehow much does a gallon of latex paint weigh before the water evaporates? that also being, how do you know it weighs a little over 4 pounds. what is the actual number if you have any?
ReplyDeleteps: thank you so much for this, it is really helping for a school project