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Explanation: Mi è venuto in mente questo, sembrerebbe anche adattarsi al contesto. Per farti un idea più precisa ho trovato una spiegazione interessante...!
Permagard 40 is a multi-purpose maintenance fluid which will de-water, penetrate, lubricate and protect from rust and corrosion.
It displaces water, moisture and damp from all surfaces because of its acute angle of contact against the relatively high angle presented by water, its very low surface tension and high capillary action drives water away from the surfaces and fills the pores as the water disperses.