The primary difference between yellow and white Teflon tape lies in their material thickness, density, and regulatory certifications for specific plumbing applications. Standard white tape is thin and engineered for general residential water supply lines. In contrast, yellow Teflon tape is significantly thicker, heavier, and specifically certified for gas lines, including natural gas, propane, and butane connections. Yellow gas tape possesses the specialized chemical resistance required to withstand volatile fuels safely over long periods without degrading, ensuring maximum safety, regulatory compliance, and a robust seal for all fuel supply installations.
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