Do it TFE Paste

Pure white pipe thread sealant. Nonhardening. Withstands up to 3000 P.S.I. and temperatures from -50 deg. F. to +500 deg. F. For use on PVC, ABS, CPVC, polypropylene, iron, or steel threads. Apply to clean Male threads and assemble the joint. Not for use on oxygen systems.

No. 23019-48: Size: 1 oz, Type: Tube, Color: White, Temperature Range: -50 to 500 F, Pressure Rating: 3000 psi, Pkg Qty: 1, Package Type: Tube
No. 23032: Size: 4 oz, Type: Bottle, Color: White, Temperature Range: -50 to 500 F, Pressure Rating: 3000 psi, Pkg Qty: 1, Package Type: Jar
No. 23048: Size: 8 oz, Type: Bottle, Color: White, Temperature Range: -50 to 500 F, Pressure Rating: 300 psi, Pkg Qty: 1, Package Type: Jar