Any material that will hold water can be used to make a faucet.
Faucets have been created from wood, glass, and ceramics, although these materials are not in common use. More typically, faucets are made from metals: pewter, copper, bronze, brass, stainless steel, and zinc alloys, although pewter and bronze are rare, found only in custom faucets. They can also be made of plastic.
Source: Internet
However, plastic faucet is not recommended.
We're not picking on plastic. We think that the many plastics available have lots of legitimate uses in construction and remodeling. It's just that no plastic is tough enough to be used in a faucet no matter how pretty it looks.
Your water contains dissolved minerals. Among these are magnesium, limestone, iron, silica, and even granite.
Source: starcraftcustombuilders.com
The minerals that can build up on your faucet spout, also build up inside your faucet and grind away at its moving parts. Plastic does not stand up to constant grinding nearly as well as brass, stainless steel or ceramic materials.
When water flows through your faucet some of these minerals are left behind as very hard, rock-like, deposits.
In your bathtub or sink these are known as "limescale" or "mineral deposits" and they are the very devil to get rid of after they have built up for a while and etched into the fixture material.
Mineral deposit build-up inside a faucet
Source: starcraftcustombuilders.com
They behave the same way inside your faucet where you can't get at them or even see them. They grind away at the internal moving parts of your faucet, wearing them down over time. Brass and steel can handle the abuse for years and years without failing, plastic cannot.
We have never seen advice from a responsible source on the purchase of a plastic faucet other than some variation of "Run, run away, fast and far."
That is also our advice. Plastic is not a suitable material for faucets, particularly faucet bodies and spouts. It is simply not durable enough for a faucet. And, there is no reason to buy a plastic faucet when for a very few dollars more you can always find a suitable metal faucet.
As a brand company specializing in the sanitary ware industry for 30 years, we know how important the raw materials and processes are. We do our best even in places you can't see or touch, in order to ensure that the products we provide for you have the best performance and durability with affordable price.
JOMOO Faucet
Source：starcraftcustombuilders.com
