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  2. Thread seal tape - Wikipedia

    en.wikipedia.org/wiki/Thread_seal_tape

    Thread seal tape is wrapped around the threads, lubricating the connection and allowing the two pieces to be screwed deeper together. Thread seal tape (also known as PTFE tape, Teflon tape, or plumber's tape) is a polytetrafluoroethylene (PTFE) film tape commonly used in plumbing for sealing pipe threads. The tape is sold cut to specific widths ...

  3. Ground glass joint - Wikipedia

    en.wikipedia.org/wiki/Ground_glass_joint

    The rim of the joint is flared, sometimes into a wide flange, to give a larger surface for the joint to seal over. Aside from joints using a gasket or O-ring, this is the only type of ground-glass joint used for very large diameters, since at those scales conical joints become impractical to manufacture and are prone to binding. Flat joints are ...

  4. Caulk - Wikipedia

    en.wikipedia.org/wiki/Caulk

    Caulk (also known as caulking and calking) [1] is a material used to seal joints or seams against leakage in various structures and piping. The oldest form of caulk consisted of fibrous materials driven into the wedge-shaped seams between boards on wooden boats or ships. Cast iron sewerage pipes were formerly caulked in a similar way.

  5. Oakum - Wikipedia

    en.wikipedia.org/wiki/Oakum

    Oakum is a preparation of tarred fibers used to seal gaps. Its traditional application was in shipbuilding for caulking or packing the joints of timbers in wooden vessels and the deck planking of iron and steel ships. [1] Oakum was also used in plumbing for sealing joints in cast iron pipe, and in log cabins for chinking. In shipbuilding it was ...

  6. Gasket - Wikipedia

    en.wikipedia.org/wiki/Gasket

    A gasket is a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. It is a deformable material that is used to create a static seal and maintain that seal under various operating conditions in a mechanical assembly. [1]

  7. Bridgman seal - Wikipedia

    en.wikipedia.org/wiki/Bridgman_seal

    Bridgman originally used hard steel, softer steel, and rubber. The rubber would actually protrude into a groove in the soft steel ring above, to help hold it in place (not shown). The upturned T shape is a horizontal disk on a vertical shaft; it compresses these rings when the pressure vessel is pressurized.

  8. Seal (mechanical) - Wikipedia

    en.wikipedia.org/wiki/Seal_(mechanical)

    A seal is a device or material that helps join systems, mechanisms or other materials together by preventing leakage (e.g. in a pumping system), containing pressure, or excluding contamination. The effectiveness of a seal is dependent on adhesion in the case of sealants and compression in the case of gaskets .

  9. Silicone grease - Wikipedia

    en.wikipedia.org/wiki/Silicone_grease

    Silicone grease is widely used as a temporary sealant and a lubricant for interconnecting ground glass joints, as is typically used in laboratory glassware.Although silicones are normally assumed to be chemically inert, several historically significant compounds have resulted from unintended reactions with silicones.

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