<HTML>Hi Pat
I have been using Pro dope made by Hercules Chemical Co, Inc.
800-221-9330
[
www.herchem.com]
info@herchem.com
Description:
Usage: Pro Dope is a LEAD-FREE, no-drip, no-spill pipe joint compound made for metal pipe and valves carrying natural gas, water, air, steam, ammonia, dilute acids and alkalis. Non-Toxic. No mixing, will not harden, absolutely uniform throughout can. Lubricates as it forms a tight pressure seal. Inhibits rust and corrosion. Wipes clean from hands. Approved for natural gas.Not for use on plastic threads
I have had no problem piping up my car or boats. They have one to 500F
[
www.herchem.com]
Rolly</HTML>