It is generally not permitted and violates most local building and plumbing codes to use standard white Teflon tape on gas lines, including natural gas, propane, or butane systems. Gas lines require specialized yellow gas-rated Teflon tape, which is significantly thicker, heavier, and chemically engineered to withstand volatile gases and prevent fuel leaks safely over long periods. Standard white tape is much thinner and may degrade when exposed to certain petroleum-based gases and chemical additives over time. Using the correct yellow gas tape ensures maximum safety, regulatory compliance, and a robust, reliable seal for all residential fuel supply installations.
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