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rubber

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. P

    Mystery pipe

    Hi, I am currently fitting an ensuite to my bedroom and am running a waste pipe along the floor joints to the toilet, but on lifting the floor, I have found a 35mm black rubber pipe. Its running at right angles to the direction I am going, and I have no idea what it was ever used for. I live...
  2. P

    Rubber washers for smeg cooker

    Simple question smeg supply rubber washers for cooker gas connection always used fibre any objections to rubber ?
  3. B

    phoenix TRV 15 mm rubber olive compression joint

    Hey guys, has anyone ever come across a rubber olive before? Every valve I've ever fitted up until now has a copper/brass olive compression joint onto 15mm pipe but this new radiator valve that I need to use for the type of radiator I have uses rubber olives to compress onto the 15mm pipe...
  4. Y

    Rubber Gasket - Soil Stack

    Hi all - first post here so please be gentle. A rubber gasket/reducer has broken free from my soil stack, above the roof line and before the vent/terminal. It looks like a reducer/gasket to keep the joint between the larger outer pipe and the smaller diameter inner pipe water tight. Does...
  5. S

    fitting for circ pump

    I was fitting a new heating circ pump in my holiday home and both screws rung on me while doing this but managed to get the bottom one back to when it needs to get water flowing though the other side is only 1/4 turned and leaking. While going into the city to get new fittings, I forgot to turn...
  6. J

    Earthing a sink/mains water in rubber pipe

    Hi I'm replacing a kitchen, the original having been ripped out. On of my tasks is to install sink. The mains water s coming in to the house via a plastic pipe, then the stop tape, then more plastic pipe, before being connected to a copper pipe. Do I need to earth the sink? there is no...
  7. T

    Radiator valve drain washer ?

    My radiators downstairs all have drain points so I can empty and remove them when decorating etc. They are slightly unusual. The radiator tail has a small drain outlet with a threaded end fitted with a small cap with a rubber washer/disc in the bottom. To drain the rad, you unscrew the cap...
  8. T

    Strap on boss for cast?

    Hi, Ive got to boss into a 4" cast stack in the next couple of days, I've never done this before, normally have cut a section of cast out and fitted a boss pipe with ferncos or completely renew the stack in PVC. I cant do either of them in this situation and I need to use a strap on boss, am...
  9. R

    Bathroom waste - unsure of where to put sealant?

    Hi, I am new to the forum and wondered if anyone had any advice on how to seal my new bath trap to the bath. I'm a keen DIY'er but have attended a few plumbing courses, but I have to admit I am scratching my head a bit on where to put the sealant. Its a Duravit bath and waste. There...
  10. D

    Bosch dishwasher waste pipe to sink trap spigot issues...

    Afternoon ladies and gents, I've been having some issues connecting a used Bosch Classixx dishwasher to a waste spigot attached to a sink trap. The waste pipe doesn't have the usual rubber end that I can jubilee clip over the top of the waste spigot. It is hard plastic and the same...
  11. L

    Over tightened towel radiator

    I think I've overtightened the thread on top of the radiator. It's leaking. How do I replace the rubber seal, without draining the system?
  12. M

    saniflo pipe runs

    Some dude has ran the waste from saniflo into rain water pipe and it's not a combined sewer. So I need to re do it and run pipes the opposite way to back of the house where soil is. So, old laminate floor up and run through joists. So I am thinking of using hep so no joints. I can see saniflo...
  13. E

    Most valued tool...... My phone

    Alreet? Yeh my phone ! Any suggestions / reviews on phone cases? I'm on iPhone 4s with griffin survivor case - it's lasted 400% + on any of my last phones and I've had just about every "rugged" phone on the market for the shark fin sony Ericsson to motarola. Getting iPhone 5 for free so what...
  14. W

    anyone know a national shop/mercha that does good range of flexible rubber couplings?

    From quite small sizes up... Plenty of online sellers but can be a ballache.
  15. M

    Removing 40mm waste from soil stack boss

    Hi there, I have a 40mm waste that is capped and sealed with a rubber adapter. I need to reuse this access point but I have very limited space. The capped 40mm pipe wont pull out of the rubber adapter or the rubber adapter from the soil stack. Are there any top tips for removing these? If I...
  16. S

    Flexible tap connectors

    Hi, i would like some advice re-flexi tap connectors. Did a google search, and the feedback seems to conclude how unreliable they are. My question if they are so unreliable and prone to failure why are they on sale? are they possibly getting such bad press due to not being installed correctly...
  17. P

    Sludge Removal And Using Rubber Mallet On Rads

    After a bit of advice about best way of cleaning my open vented system in bungalow. There are 8 rads, s plan, Ideal Concords WRS and all rad pipework is buried in screed with gate valve and pipe leading outside to drain system on same level as pipes in screed. When I was replacing a couple of...
  18. G

    Transco rubber bandage external gas pipe

    I called transco out to an external iron service pipe clipped to the gable end of a large property near the town centre ,the service pipe supplied gas to one meter in the building ,this pipe had been PVC sheathed but this had peeled of over the years allowing the iron pipe to corrode in various...
  19. V

    Storage Tank Rubber Bung ?

    Hi Guys i'm fairly new here. I'm looking for a rubber bung i can use to block off a cold feed on a storage tank but i cant seem to find one anywhere, Just wondered if anybody new anywhere i can get one from. Or even what to ask for. Any help will be greatly appreciated. Thanks Vezza91
  20. D

    Cast Iron Pipe

    Hi, I need to connect into a internal vertical cast iron soil pipe. I need to add a 4" branch for a a new toilet to be installed on the ground floor. I was wondering if cutting a section of cast iron pipe out and replace that section with plastic 4" pipe using rubber slip couplers would do the...
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