Foam Solution 1
Foam Solution 1 : A homogeneous mixture of water and foam concentrate to which air is added to produce foam. Characteristics: Foam "SOLUTION" has no real bubble structure but some bubble formation may occur due to agitation and impact. Low Expansion: Foam having an expansion between 1:1 and 20:1. Medium Expansion: Foam having an expansion between 21:1 and 200:1. Mix Ratio: The ratio of foam or retardant concentrate to water. Foam expressed in percent. Retardant expressed in ratio. Proportioner: A device that adds a predetermined amount of liquid foam or retardant concentrate to water to form a solution. Surface Tension: The elastic-like force at the surface of a liquid, which tends to minimize the surface area, causing drops to form. Wet Foam: Characteristics: The bubbles of "wet" foams are spherical masses of air which are enclosed on solution. The bubble walls are separated by a large amount of solution, relative to other types of foams. Wet foams have very fast drainage rates
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