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2. Cross-linked polyethylene - Wikipedia

   en.wikipedia.org/wiki/Cross-linked_polyethylene

   PEX-AL-PEX pipes, or AluPEX, or PEX/Aluminum/PEX, or Multilayer pipes are made of a layer of aluminum sandwiched between two layers of PEX. The metal layer serves as an oxygen barrier, stopping the oxygen diffusion through the polymer matrix, so it cannot dissolve into the water in the tube and corrode the metal components of the system. [ 42 ]

3. Ethylene vinyl alcohol - Wikipedia

   en.wikipedia.org/wiki/Ethylene_vinyl_alcohol

   EVOH copolymer is defined by the mole % ethylene content: lower ethylene content grades have higher barrier properties; higher ethylene content grades have lower temperatures for extrusion. The plastic resin is commonly used as an oxygen barrier in food packaging. It is better than other plastics at keeping air out and flavors in, is highly ...

4. Barrier pipe - Wikipedia

   en.wikipedia.org/wiki/Barrier_pipe

   In hydronic, water-carrying, heating systems a plastic pipe is manufactured with a barrier that prevents oxygen from penetrating the material and entering the water system, reducing the risk of corrosion. The 'barrier' is usually a resin material bonded between the outer and inner layer of the pipe itself.

5. Oxygen compatibility - Wikipedia

   en.wikipedia.org/wiki/Oxygen_compatibility

   Oxygen compatibility is the issue of compatibility of materials for service in high concentrations of oxygen. It is a critical issue in space, aircraft, medical ...

6. Tygon tubing - Wikipedia

   en.wikipedia.org/wiki/Tygon_Tubing

   Tygon Fuel and Lubricant Tubing F-4040-A is translucent yellow for positive identification and flow monitoring. It is used in small engine fuel lines, recreational vehicles, and lubrication lines. Tygon LP1100 is a low permeation EPA and CARB certified fuel line [4] also used in small engines. Tygon R-3400 UV Resistant Tubing is

7. Linear low-density polyethylene - Wikipedia

   en.wikipedia.org/wiki/Linear_low-density...

   LLDPE has penetrated almost all traditional markets for polyethylene; it is used for plastic bags and sheets (where it allows using lower thickness than comparable LDPE), plastic wrap, stretch wrap, pouches, toys, covers, lids, pipes, buckets and containers, covering of cables, geomembranes, [1] and mainly flexible tubing. In 2013, the world ...