In recent months it has become clear that there is rising concern over the chemical compatibility of C-PVC pipes with ancillary products, this compatibility issue is with numerous common products found on the modern building project and not just limited to fire stopping sealants as claimed by some.
Since 2016 Pyropro HPE™ Sealant has been part of the Lubrizol compatibility programme, the product has undergone formulation screening and rigorous physical testing in contact with C-PVC materials to gain approval to prove that the system is chemically compatible.
When using Pyropro HPE™ Sealant around C-PVC pipe you should ensure that a full depth seal is always installed to prevent incompatible or non-declared materials coming in to contact with the pipe. This installation should follow the FSi Limited installation detail DL00211118-CPVC – Pyropro™ HPE Sealant (Annexure A)
Pyropro HPE™ Sealant is listed on the Lubrizol compatibility programme website with numerous other products, as detailed below:
There are less compatible products than declared incompatible products, those incompatible products can also be found on the Lubrizol incompatible programme website, as detailed below:
FSi strongly recommend only the use of products that are listed within the Lubrizol C-PVC compatibility programme.
Technical Manager Fire Protection