KSCdirect

Using Tape or Paste Sealants With Plastic & Metal Threads

Review Tape Sealers in the KSCdirect.com Catalog

Review Paste Sealers in the KSCdirect.com Catalog

Which Threaded Joint Sealant to Use?

• Tape sealants are more susceptible to improper installation

• Paste sealants are more likely to contain incompatible chemicals

• Either type – Paste or Tape - must be properly used but NEVER use both!

Paste-type thread sealants fill the threads better than tape. Application is less critical, as long as the sealant is compatible with the particular plastic used. Some “pipe dopes” and pastes can cause chemical stress cracking. Spears BLUE 75TM thread sealant has been specially formulated and tested for use with these plastic piping components.

The Problem with Using TFE Tape Sealants

TFE tape sealants require special attention on application. Failure to follow the instructions below can

result in female thread breaks due to excessive tape use, difficult assembly due to insufficient tape,

leaks due to failure to cover starting threads, and leaks due to incorrectly applied tape that bunches at

the thread entrance. Since Teflon tape is a really good lubricant, care must be taken not to over-tighten taped joints.