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New group head seal, compound or silicone?

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  • Dimal
    replied
    Yep, it will be the coffee oils for sure...
    Used to soak mine in Cafetto about once every six months but weekly backflushing with sufficient Cafetto prevented the accessible surface from getting sticky. (Using the jiggle and 'sneeze' manoeuvrer )

    Mal.

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  • noidle22
    replied
    I recently saw sticky blue Cafelat seals in a commercial machine. I put them in 3 months ago. Swapped them out as per the baristas request even though they were still soft and sealing well.

    I still have them and when i remember I'll soak them in Cafetto to see if it's just coffee oils doing it or a degradation of the seal.

    Leave a comment:


  • Yelta
    replied
    Yes it is, Cafelat blue, really is quite sticky, for want of a better word, have never previously seen silicone degrade in that way.

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  • flynnaus
    replied
    Originally posted by Yelta View Post
    Thanks for the reply, just wanted to know if others had experienced this, as you comment still sealing fine, just a bit tacky to handle.
    I can't remember mine ever being in anyway 'uncomfortable' to handle. It was a Cafelat seal, is yours?

    Leave a comment:


  • Yelta
    replied
    Originally posted by flynnaus View Post
    Yes but not detrimentally. As you find, it still worked and lasted me for another 12 months.
    Thanks for the reply, just wanted to know if others had experienced this, as you comment still sealing fine, just a bit tacky to handle.

    I have a spare, when it gets too bad will replace it.
    Last edited by Yelta; 2 March 2020, 06:59 PM.

    Leave a comment:


  • flynnaus
    replied
    Originally posted by Yelta View Post
    As a matter of interest, after 12 months use the silicone seal has become quite tacky/sticky, won't wash of, still sealing fine. Has anyone else experienced this?
    Yes but not detrimentally. As you find, it still worked and lasted me for another 12 months.

    Leave a comment:


  • Yelta
    replied
    As a matter of interest, after 12 months use the silicone seal has become quite tacky/sticky, won't wash of, still sealing fine.

    Has anyone else experienced this?

    Leave a comment:


  • NewToEspresso
    replied
    Originally posted by artman View Post
    why would you buy rubber.
    You buy rubber because you don't want anymore kids.

    OK, that was a bit cheeky. Does anyone know if I can get silicone gaskets for Lelit Combi (57mm size)?

    Leave a comment:


  • artman
    replied
    As above, with silicone seal prices not much more than the rubber, why would
    You buy rubber. I am now using the same seal from a few years back on a second E61 group machine and still easy to pop out and seals perfectly with little effort.

    They also come in 8.0mm (or is it 9.0) thickness so you can "adjust" where you want the handle to sit for different groups/PFs/baskets.

    Great invention, just like the stainless, easy to clean IMS shower screen. Should last a lifetime in domestic use.

    Cheers

    Leave a comment:


  • Yelta
    replied
    Originally posted by Dimal View Post
    After using the Silicone Gasket, you'll never want to go back to the plain old rubber ones...

    Good stuff mate.

    Mal.
    Right again Mal.

    The Bezzera PF never needed much pressure to lock in, with the silicone seal even less, I'm impressed.

    Never too old to learn.

    Leave a comment:


  • Dimal
    replied
    After using the Silicone Gasket, you'll never want to go back to the plain old rubber ones...

    Good stuff mate.

    Mal.

    Leave a comment:


  • Yelta
    replied
    Great success, Antony sent a couple of 8.5 mm silicone seals, they arrived this morning.

    The old seal was allowing the PF to lock in at approx 5.30, new slightly thicker seal locks in at approx 6.30 with minimal pressure.

    Thanks Antony and Casa Espresso for your knowledge and service.

    PS if only all maintenance jobs were this simple.

    Leave a comment:


  • Yelta
    replied
    Thanks for the input Mal.

    Used the Coffee Snobs quote feature this AM, within minutes Antony from Casa Espresso responded with a very helpful reply including his phone number.

    Have ordered a couple from him, one as a spare.

    Great service, very impressed.

    Leave a comment:


  • Dimal
    replied
    In my experience, as well as lasting longer they also seal with less force required...

    Mal.

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  • Yelta
    replied
    Thanks Flynn, will chase up a couple.

    Leave a comment:

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