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hemp

Hemp, or industrial hemp, is a botanical class of Cannabis sativa cultivars grown specifically for industrial or medicinal use. It can be used to make a wide range of products. Along with bamboo, hemp is among the fastest growing plants on Earth. It was also one of the first plants to be spun into usable fiber 50,000 years ago. It can be refined into a variety of commercial items, including paper, rope, textiles, clothing, biodegradable plastics, paint, insulation, biofuel, food, and animal feed.Although chemotype I cannabis and hemp (types II, III, IV, V) are both Cannabis sativa and contain the psychoactive component tetrahydrocannabinol (THC), they represent distinct cultivar groups, typically with unique phytochemical compositions and uses. Hemp typically has lower concentrations of total THC and may have higher concentrations of cannabidiol (CBD), which potentially mitigates the psychoactive effects of THC. The legality of hemp varies widely among countries. Some governments regulate the concentration of THC and permit only hemp that is bred with an especially low THC content into commercial production.

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  1. T

    New Radiator Tails Rust looking Discolouration

    Hi, I had a new radiator fitted around a month back and I've noticed the joints which are sealed with Hemp (or modern equivalent / Boss White appear to be slightly discoloured / rusty. This might simply be a little seepage before the joint sealed etc as there is not weeping from the joint that...
  2. bmbouter

    Wet hemp and cast iron pipe in crawlspace

    I have a 5" or 6" vertical cast iron pipe in a crawlspace. There is hemp hanging down which feels damp, and the pipe itself also feels a little damp. We can't see a clear "trickle" however. Another 3" horizontal iron pipe comes from a nearby toilet and joins with this cast iron below the hemp...
    • bmbouter
    • Thread
    • america cast iron hemp iron pipe usa wet
    • Replies: 3
    • Forum: USA
  3. M

    Old joints are leaking, sealed with hemp - dried out ?

    Hello, I am new to this forum and have a question about some old plumbing around a hot water cylinder. The hot water cylinder wasn't used for 14 years and all pipes were drained. Turned the water to the hot water cylinder on and it seems that all joints on the copper tubing around the cylinder...
    • meter
    • Thread
    • america hemp joints leaking old sealed usa
    • Replies: 2
    • Forum: USA
  4. P

    Hemp or PTFE?

    In Greece virtually all plumbers use hemp for sealing threads. Is hemp better than ptfe?
  5. Jay The Plumber

    Hemp and PTFE on iron..

    just for my own interest this. I've always jointed screwed iron on heating systems with hemp and paste (boss white, green, jet blue, blah blah) but I worked with a guy recently that was running hemp onto the thread as normal but then adding a couple of wraps of PTFE, no paste. I've never come...
  6. B

    How to removing valve with hemp paste on??

    Hi guy, I'm trying to replace a 2 port valve with hemp and paste on it. I tried everything to get it to move but it won't budge Any ideas other than cutting the pipe as it's 28mm and I don't want to have to buy a length and fittings for a little job Help please!!
  7. A

    hemp!

    Doing a Stove and back boiler job this week and decided to do it old school as I only had half a roll of ptfe in my bag. went to the van and got out a hank of hemp, only problem was it is a bit ropey!!!!!:rolleyes4:
  8. W

    Best way to remove ancient hemp from a thread?

    Tried a wire brush but doesn't seem to shift it. Would burning it work?
  9. O

    loctite 55 or hemp on shower mixer valve

    Hi, first post so I'm sure this has been covered but couldn't find through searches. I'm fitting a shower thermostatic mixer valve. Its got female 3/4" threaded connections, I've got male 3/4" to 15mm compression fittings. The compression side is fine just not sure whether to use loctite 55 or...
    • ojchurch
    • Thread
    • connections fitting free funny head heating hemp loctite mixer mixer valve pipe pipes problem safe shower shower head shower mixer shower valve taps thermostatic trade travel valve water water pipes
    • Replies: 17
    • Forum: Plumbing Jobs | The Job-board
  10. L

    Hemp

    Can hemp be used with a potable paste on fittings for hot and cold water supply pipes? Regards Lennox
    • lennox
    • Thread
    • cold cold water gas heating hemp hot hot and cold water leak pipe pipes plumbers problem supply water
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
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