These should be cleaned by hand first, or the stain may run onto adjacent surfaces when washed.

Coating the adjacent surface of the porous material with a clear silicone sealant also reduces staining.

Still they sometimes need repairs if the adjacent surfaces, wall-to-wall or wall-to-ceiling, shift as the house settles.

As a result, the differential between adjacent surfaces could be a swift current.

Particles influenced by an external force generate tangential motion of a fluid with respect to an adjacent charged surface.

Caulk the perimeter of the sill where it meets all adjacent surfaces.

Influence of an external force on the diffuse layer generates tangential motion of a fluid with respect to an adjacent charged surface.

When such bubbles collapse, a localized high pressure can cause spalling on adjacent surfaces.

In a darkened room, the image would appear projected onto an adjacent flat surface.

Repeat the process on the adjacent surface and on other vertical corners.