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  1. #31
    Join Date
    Jun 2011
    Location
    Volos-Athens
    Posts
    4,024

    Default Re: Coppercoat: is sanding before launching necessary?

    P.,

    there are also scratch on pads for 125mm or 150mm orbital sanders at different grit.
    You could use them instead, easier on the arms for whoever does it.

    cheers

    V.

  2. #32
    Join Date
    Nov 2013
    Location
    Bridgend South Wales
    Posts
    16

    Default Re: Coppercoat: is sanding before launching necessary?

    I’m in Swansea which is brackish rather than full salt water. When I first had cc applied it turned brown and never really started working properly. During lasts years lift out I lightly abraded the hull with green scouring pads. I also made up a very strong hot salt soulution and sprayed the cc with this. After 3 days still ashore the cc started to go green. It has transformed the way it has worked since.

  3. #33
    Join Date
    Jul 2003
    Location
    River Itchen, Southampton
    Posts
    6,356

    Default Re: Coppercoat: is sanding before launching necessary?

    Quote Originally Posted by MapisM View Post
    Aha, thanks a lot.
    Actually, I half guessed that the following thing is what Elessar meant, but intuitively it seemed not strong enough, to my totally unexperienced eyes.
    Elessar, considering also what NH said, your final confirmation would be appreciated - TIA!
    It's 3M so looks good.
    They do loads https://www.3m.com/3M/en_US/company-...94857497&rt=r3

  4. #34
    Join Date
    Mar 2002
    Posts
    15,440

    Default Re: Coppercoat: is sanding before launching necessary?

    Quote Originally Posted by Elessar View Post
    It's 3M so looks good.
    Thanks M, I also got your pm in the meantime. The stuff which was eventually used was not exactly the one in my previous pic - red rather than green, and in roto-orbital sander discs, but essentially the same stuff.

    The boat went back in the water yesterday, time will tell!
    Btw, she's now temporarily in a fresh water marina along a river, where she's going to stay for about one week.
    Can that matter in some ways, for CC?

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