What adhesive should be used to connect PP-R pipes with PVC pipes?

2010-11-01View Original

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What adhesive should be used to connect PP-R pipes with PVC pipes?

Reply #22010-11-01

PPR pipe is short for random copolymerized polypropylene. Polypropylene and polyethylene have symmetrical molecular structures and are non-polar polymers; as a result, no adhesive can bond to them. PVC is a polar polymer material that can be bonded, so these two materials cannot be joined by bonding; instead, mechanical connections such as flange connections must be used.

Reply #32010-11-02

They belong to two different materials; we don’t have any precedents for using them together here. The PVC pipes I’ve seen are generally used as sewer pipes, while PPR pipes can be used as pipelines for transporting chemicals. Perhaps I’m not well-informed; I’ve never seen PVC pipes with flanges.

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