Results 1 to 8 of 8
  1. #1
    Join Date
    Jun 2001
    Location
    Guernsey, Channel Islands
    Posts
    3,182

    Default Which 3M sealant?

    Hi, anyone know which 3M sealant is best for inhibiting crevice corrosion?
    These are the voyages of Play d'eau....www.playdeau.com

  2. #2
    Join Date
    Feb 2015
    Location
    Conwy
    Posts
    2,611

    Default Re: Which 3M sealant?

    Not sure about best but I've use 3M Cavity Wax Plus to good effect on my Land Rover Disco where rust was beginning to set in on the joints of some panels that were double walled, crimped and spot-welded over.

  3. #3
    Join Date
    May 2001
    Location
    London/Antibes
    Posts
    21,949

    Default Re: Which 3M sealant?

    4200 if you want normal bond; 5200 if you want super strong. Both are polyurethanes.

  4. #4
    Join Date
    Feb 2016
    Posts
    144

    Default Re: Which 3M sealant?

    if it's for bedding stainless onto have a search for using butyl tape to do this, easily removable, stays flexible and seals superbly..

    Steve

  5. #5
    Join Date
    Jan 2011
    Location
    No fixed abode
    Posts
    2,539

    Default Re: Which 3M sealant?

    Quote Originally Posted by 5teve View Post
    if it's for bedding stainless onto have a search for using butyl tape to do this, easily removable, stays flexible and seals superbly..

    Steve
    And ouses for two years afterwards.

  6. #6
    Join Date
    May 2001
    Location
    London/Antibes
    Posts
    21,949

    Default Re: Which 3M sealant?

    I know that butyl tape has its fan club but I'm not a member. In my view it is engineeringly offensive in that its flexibility allows the fixings to be loaded in shear. Engineers seek to load them in tension only, with friction taking the shear load. And as said above, it oozes.

  7. #7
    Join Date
    Feb 2016
    Posts
    144

    Default Re: Which 3M sealant?

    Fair comments I guess it depends on application as to what you are fitting.. non structural stuff wouldn't have an issue (apart from oozing which I have not read about but trust your assessment) I just made a note that when I get to bedding certain items I will use it, otherwise I have used polyeurathane, not silicon (a whole other debate)

    Steve

  8. #8
    Join Date
    Jun 2001
    Location
    Guernsey, Channel Islands
    Posts
    3,182

    Default Re: Which 3M sealant?

    Quote Originally Posted by jfm View Post
    4200 if you want normal bond; 5200 if you want super strong. Both are polyurethanes.
    Thanks for this. Perfect.
    These are the voyages of Play d'eau....www.playdeau.com

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Latest YBW News

Find Boats For Sale

to
to