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Rubber, also called India rubber, latex, Amazonian rubber, caucho, or caoutchouc, as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds. Thailand and Indonesia are two of the leading rubber producers. Types of polyisoprene that are used as natural rubbers are classified as elastomers.
Currently, rubber is harvested mainly in the form of the latex from the rubber tree (Hevea brasiliensis) or others. The latex is a sticky, milky and white colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called "tapping". The latex then is refined into rubber that is ready for commercial processing. In major areas, latex is allowed to coagulate in the collection cup. The coagulated lumps are collected and processed into dry forms for sale.
Natural rubber is used extensively in many applications and products, either alone or in combination with other materials. In most of its useful forms, it has a large stretch ratio and high resilience, and also is water-proof.
Industrial demand for rubber-like materials began to outstrip natural rubber supplies by the end of the 19th century, leading to the synthesis of synthetic rubber in 1909 by chemical means.

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  1. E

    Connecting to black rubber mains pipe

    I have a cold mains in that is a black flexible rubber looking pipe. Please see photo 1. It is currently connected to a 22mm stopcock. I’d like to send it 90 deg to the right. This is so I can lower the shelf above it and have the mains come in at a more convenient place. See photo 2 (with...
  2. E

    Solution to inaccessible Isolation valve rubber

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  3. B

    Which way bath rubber seal?

    I’ve got a McAlpine bath waste & it’s come with the two rubber seals one for the plug (which is the bigger one out of the two in pics) & the overflow. Which way around do I put them as the plug one has one side with loads of lines compared to the other side which has a slight dip with one line...
  4. gerry2190

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  5. D

    Viessmann rubber hoses problem

    Are the rubber hoses known to fail on the 2016-2019 Viessmann Vitodens 100W? I've been dealing with circulation issues inside the boiler and I've found some anecdotal reports online of "crunchy hose syndrome" aka black granules or flakes. Some photos of the issue from several youtube vids...
  6. T

    Rubber 'Cup' in shower trap has perished.

    A 21 year old shower which has two traps has perished "Cups' and smells are entering via the Traps. There is no access to replace the Traps. I have no idea who made these old Traps or where to get a replacement rubber cups. I cannot fit a dry trap down stream as there is no access. Any ideas...
  7. M

    3/4 rubber washer Bath tap connector

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  8. D

    Bath plug rubber seal replacement

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  9. M

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    Any one started using rubber washers on copper tap connectors instead of fibre?
  10. R

    Macdee pneumatic flush rubber bellow diapragm

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  11. R

    Rubber bungs for loft tanks

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  12. centralheatking

    Rubber Cored Braided Flexible Connectors

    The NHS has already de listed rubber cored flexible connectors I learn this morning that a local Metropolitan Borough Council in my area has followed suit. The issue is the rubber core becomes porous and is a breeding ground for nasty bugs esp. legionella ...plus their propensity to split and...
  13. S

    Leaking toilet cistern pipe to valve

    Hello I wanted to fit an isolating valve to the supply to the toilet cistern so as to reduce the water pressure. The cistern has a shutoff valve with a small rubber diaphragm type shut off and if pressure is to high it keeps filling and overflows into toilet. I have posted a photo, new copper...
  14. E

    Leaky Kitchen Tap - does a rubber washer exist?

    Hi All, I'm stuck and in need of some help. I have a leaky French style kitchen mixer tap that requires replacement rubber washers. Believe the tap is likely as old as the kitchen extension, circa 20 years. I've searched the internet high and low, but the style of rubber washer I require...
  15. B

    Old plastic/ rubber pipe and compatible fitting?

    Hi, a stopcock has seized and I need to replace it but the pipe is an unusual rubber/ plastic material. It’s approximately an inch ID. Has anyone got any advice for replacement compatible fittings? Will it need inserts etc? Thanks in advance and some pics below.
  16. L

    Pan connector rubber seal

    I recently had to change a toilet. This was connected to the soil pipe by a flexi connector. Unfortunately the rubber seal on the soil pipe end of the flexi needed to be replaced, I was unable to find any stockist for just the rubber seal, so ended up buying a complete pan connector and using...
  17. SMB

    Ball cock rubber washer replacement.

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  18. H


    Please help! Does anyone have a spare rubber shroud (grommet) for a potterton lynx 2 ng combi boiler, part number 222161pot? You would make my day! Thanks
  19. D

    Rubber or fibre washer

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  20. moonlight

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