Equipment used with LP-gas should be fabricated from materials that are what?

Equipment used with LP-gas should be fabricated from materials that are compatible. This is crucial because materials that are not compatible with propane can lead to various issues, such as leaking, cracking, or even catastrophic failures. Compatibility ensures that the materials used in the equipment can withstand the chemical properties of LP-gas without degrading over time. This is particularly important for safety, as any compromise in the integrity of the system could pose significant risks, including fire hazards or exposure to dangerous gases.

The other options do not address the safety and functionality requirements for equipment used with propane. For example, corrosive materials would lead to rapid deterioration and failures, while simply being recyclable or non-permeable does not guarantee the safety and integrity of the equipment in the presence of LP-gas. Compatibility is a primary consideration, making it essential for the safe handling and use of propane equipment.