www.pmmag.com/articles/97593-tfco-heavy-duty-thread-sealant-tape

TFCO heavy-duty thread sealant tape
November 20, 2015
TFCO’s Purple Maxx Thread Sealant Tape is rated to 10,000 psi and is a combination of thickness, density and cost. Due to its heavy-duty construction, it eliminates leaks, waste and shredding, and can be used in virtually any application. It is made in the United States.