Apprentice question

Field check

Standard work. Do it right, keep moving.

Why does caking mastic on too thick not make a better seal?

Mastic should be applied cleanly over a mechanically sound joint. Too much gloop wastes material, slows cure time, and makes inspection/cleanup harder.

['You seal a series of rectangular joints on the ground by slathering water-based mastic 4 inches wide and an inch deep over the seams, using up a whole bucket of sealer on just three fittings.', 'Mastic should be applied cleanly over a mechanically sound joint. Too much gloop wastes material, slows cure time, and makes inspection/cleanup harder. The likely recovery is to check the condition, correct prep/setup if it is within your assignment, and bring the foreman clean information before the work creates rework overhead.']

Sealing, Leakage, Mastic & Pressure Testing 1st Year GREEN

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