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 specied 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 specically for this application and it is UPC and NSF listed. In saying
that; we do recommend that you check with your local building ofcials 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.