SAF-T-EZE Pipe-Seal is compounded with PTFE to lubricate joint assembly. It is resistant to chemicals and can be used on pipes larger than 3/4" diameter to seal kerosene, LP gas, oil, water, weak caustic acids and low pressure steam. See Fine Pipe-Seal for pipes less than 3/4" diameter. SAF-T-EZE Pipe-Seal will not run, drip or separate and will withstand moderately high pressure and performs to 500F (260C). When rubber is present Fine Pipe-Seal is recommended.