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Thread: Will Cafelat silicon group seal fit Silvia?

  1. #1
    Member mtee's Avatar
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    Will Cafelat silicon group seal fit Silvia?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hi Guys,

    Not sure if this has been covered before.

    Can anyone tell me if any of the Cafelat silicon group seals shown in BeanBay will fit a Silvia V3?

    I'd measure it, but it's not my machine.

    Thanks, Mark

  2. #2
    Site Sponsor coffee_machinist's Avatar
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    If the listed one is green and listed as Rancilio, yes. If it is red or blue and listed as E61, then no!
    Andy, mtee and TC like this.

  3. #3
    Mal Dimal's Avatar
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    The Cafelat Group Gaskets are great by the way....

    Have had one in my E-61 machine for a few months now. Much more pliant than the original hard rubber ones which makes it a lot easier to close (and seal) the Group Handle properly and of course, no more stinky hot rubber smell...

    Mal.
    mtee likes this.

  4. #4
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    My guess would be they are made of polyurethane.

  5. #5
    Senior Member Vinitasse's Avatar
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    Quote Originally Posted by koshari View Post
    My guess would be they are made of polyurethane.
    Made from silicon actually... as per the title of the post
    chokkidog likes this.

  6. #6
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    Quote Originally Posted by Vinitasse View Post
    Made from silicon actually... as per the title of the post
    Huh. Good point. Can miss thread titles on tapatalk timeline. Is the silicon too soft? Without knowing there were alternate group seal materials other than rubber I always wondered how a polyurethane seal would go.

    I had noticed my stovetops have silicon seals.

  7. #7
    Mal Dimal's Avatar
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    No, the silicone seems to be of a relatively high Shore Number and therefore quite hard for a silicone rubber. Probably my description of it being more pliant is not a good one. Feels similar to the hardness of a hydraulic O-Ring, if that's any guide, but definitely not as hard as the original rubber replacements.

    Mal.

  8. #8
    Member mtee's Avatar
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    Thanks for the prompt reply CM.

    Yes Mal, they're a nicer seal than the standard rubber ones. I'm using one myself and will buy a couple for Mum's Silvia.



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