Failure of an internal lining of drinking water pipes

This is a two-component epoxy coating implemented inside a metal pipe dedicated to transporting water intended to be made potable.

This coating, made up of three layers of paint ( anticorrosion epoxy primer + 2 epoxy coats) presented different facies of disorders such as blisters , inclusions of foreign bodies , color changes …


Colle epoxy analyse

The analyzes recommended by Polymex to investigate these issues are for example:


  • Structural analyzes by Pyrolysis/GCMS and IRTF on samples in healthy and degraded areas to search for the origin of blistering (phenomenon of carbamation, crosslinking defect, poor preparation of the support, etc.).
  • Visual and elementary microscopic analysis by SEM / EDX on the sample in a degraded area in order to observe the detachment interface to the right of the blister after a cut perpendicular to the surface of the sample. Comparison of the microstructure to that of the sample in the healthy zone.
  • Search for particles at the right of the blistering interface. Measurement of the thicknesses of the two films for comparison.
  • Visual and elementary microscopic analysis by SEM/EDX on samples with inclusions to characterize their nature.
MEB/EDX

Other examples from industry

The POLYMEX laboratory is able to detect and quantify BTEX in trace amounts in samples with varied and complex matrices (Gels, liquids,..
Detection and quantification of BTEX by HS-GCMS

Detection and quantification of BTEX by HS-GCMS

Search for irritant compounds in RJ45 cords
Search for irritant compounds in RJ45 cords

Search for irritant compounds in RJ45 cords

You notice a deposit on your finished products and want to find out its origin? Thanks to its complete analytical park, the Polymex..
powder residue on caps

powder residue on caps

Failure of an internal lining of drinking water pipes
Failure of an internal lining of drinking water pipes

Failure of an internal lining of drinking water pipes

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