FAQ
Plastic Pipe Cements and Primers
FAQs
Q What is interference t?
A Interference t is the pre-assembly test you apply to the pipe and tting. After pipe is chamfered you will
dry t the pipe into the tting and you will want resistance between 1/3 and 1/2 way into the tting. This
will allow for a good bond when cement is applied. If there is no interference t, you should not try to
cement the pipe and ttings together.
Q What should be done with a plumbing system that was assembled using the wrong solvent
cement, i.e., CPVC cement on PVC piping, PVC cement on CPVC piping or ABS on CPVC or
PVC piping?
A We cannot support these applications although a semblance of a bond may exist. It is a violation of all
plumbing codes to use cements not specied for use with materials it is being applied to for bonding
purposes. These joints should be cut out and the approved transition ttings used to nish the application.
Q If Oatey Green Transition Cement is used to join PVC to ABS, will it meet plumbing codes
standards?
A Oatey has developed this cement specically for this application and it is UPC and NSF listed. In saying
that; we do recommend that you check with your local building ofcials and see if they have any
restrictions on its use. The UPC and IPC codes are a minimum guidelines and each city, county or health
department can set forth tougher guidelines which may prohibit the use of transition cement.
Q How do I remove Tamper Proof Lids off Cleaner and Primer cans?
A We have posted a direction sheet for this process on our website in the technical bulletin and FAQ sections.