The morphological patterns that develop in H-PDMS films are reversible. When pronounced instability pattern develops on a film in pure water after one day of immersion, the film loses the features when exposed to a dry atmosphere Figure H. When such a pattern developed in pure water is immersed in salt water, the amplitude of the pattern decreases from about 62 m to 42 m. Then again, when the flattened film is immersed back to distilled water, the morphological patterns re-emerge Figure J fully.