How to prevent pipe corrosion under insulation layers?
Thread Content
The following shows the corrosion condition of pipes beneath the insulation layer; what methods can be used to avoid it?
New types of insulation coatings could be considered, though the cost might be a bit high
Common factors include inadequate waterproofing of the insulation layer and frequent temperature changes in the insulated pipelines. To reduce corrosion, actions should be taken in these two areas for reference.
1. Add a moisture barrier to the insulation structure to prevent water vapor from entering and condensing. 2. Replace the paint
The underlying layer of the iron red epoxy coating showed patchy corrosion, indicating that the pipe did not receive proper anti-corrosion treatment from the start. Without an insulating layer, the problem would arise within a few years; with an insulating layer, it happens even faster.