This topic contains 7 replies, has 4 voices, and was last updated by  colin twyford 4 years, 2 months ago.

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  • #10205

    David Phillips
    Participant

    Would be very grateful for any advice that anyone may have for removing and replacing sea cocks that heave been epoxied in place. Definitely need replacing as much of metal has gone pink and three bolts have sheared off. I have a horrible feeling that there may be a small amount of rot around one f them. I am thinking of replacing with grip, any thoughts please?

  • #10206

    David Phillips
    Participant

    I meant ‘grp’, predictive text is a nuisance

  • #10207

    Dominic Dobson
    Participant

    Keep clear of the GRP repairing with veneer a lot easier than you think

  • #10208

    colin twyford
    Participant

    I agree with Dominic, Make a full repair with laminate and recut using bronze fitting.

    Good luck hope to see you soon.

    Colin

  • #10209

    Chris Green
    Participant

    I concur with above –  would just add a backing plate of 12 – 18 mm ply or hardwood epoxied to interior. NB: Original bronze sea cocks can usually be refurbished, but if replacing use marine version not the plumbing valve type. 

  • #10210

    colin twyford
    Participant

    Your quite right Chris, a solid backing for any opening of the hull or deck is very necessary.

    Colin

  • #10211

    David Phillips
    Participant

    Many thanks for comments above, I was thinking about grp sea cocks, marelon I think? The small amount of rot extends about a centimetre outside the flange, is such a small hole better to re-laminate or epoxy? I was worried that relaminating might weaken the structure more. So thanks Colin, I might have to prevail on your advice re relaminating, scarfing I have done before but not this

  • #10212

    colin twyford
    Participant

    David

    Laminate with inner and outer laminates larger and inner ones diminishing and as Chis mentions a solid backing inside overlapping the repair.

    Do you think you may get her to the 60th?

    Colin

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