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Water migration through plastic wall
- Thread starter MiKelPD
- Start date
Plastics are hygroscopic more or less. Nylon is among the most hygroscopic. If you need bubble tight impermiability, you may have to treat with a compatible coating like urethane. Parts made from cast metal, like valve bodies, have been treated with varnish to make them impermiable. This was common in automotive and other industries.
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