sagging


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sagging

[′sag·iŋ]
(naval architecture)
Deflection of the hull of a ship in which the middle of the keel is bowed downward.

sagging

1. A defect characterized by a wavy line or lines appearing on those surfaces of porcelain enamel that have been fired in a vertical position.
2. A defect characterized by irreversible downward bending in a ceramic article insufficiently supported during the firing cycle.
3. The excessive flow of a wet paint film on vertical surfaces resulting in drips, runs, or curtains in the film when it dries.
4. The flowing of a sealant within a joint, so that it loses its original shape.
References in periodicals archive ?
Sagging can be reduced or prevented by raising the viscosity of the paint at low shear stress or rate and/or by applying thinner coats of paint.
Melt phase thermoforming of PP is difficult to perform because of the poor sagging resistance of the polymer.
Different techniques have been used to characterize the properties of PP to predict its sagging behavior and processability in thermoforming [1, 10].
In this work, the rheological properties and the sagging behavior of different grades of PP have been studied to assess their suitability in thermoforming operations.
The sagging resistance of PP and ABS was studied by measuring the polymer's melt strength using a Gottfert "Rheotens" Melt Strength Tester as described previously [12].
The successful completion of the sagging milestone can be attributed to Corning's wealth of experience in supplying astronomy ULE mirrors and the excellent performance of the team in Canton, N.