CIPP resins and long-term tests
In his presentation, the author will discuss the resins used for impregnating renovation liners and the CIPP liners long-term tests.
While selecting the resins for CIPP renovation, we should take into the account the characteristics concerning their susceptibility to osmosis – and in consequence, to the corrosion. The short-term mechanical properties are also important, as they are the basis of calculations of the strength and easy to check during the investment process.
For the decades the long-term tests have been indicating that all of the resins in the liners are excellent hence those tests are not a suitable criterium, because the will indicate so even in the case of inadequate resins that after 50 years will be completely corroded and destroyed.
Bogusław Wójtowicz, POliner sp. z o.o. (sp.k.).
President Poliner sp. z o.o.,