Recaulking Teak Decks

  • May 02, 2011 11:40 AM
    Message # 582504
    Deleted user
    I'm about two weeks away from recaulking my teak deck and realized that I don't have any literature about how to estimate the quantities of both the bond-breaker tape (3M 218) and the Teak Deck Systems SIS440.  Is anyone able to shed some light on this?  I'm sure that the rolls of tape and tubes of 10 oz caulk get gobbled up at a fearsome rate! -Tom
  • May 02, 2011 10:34 PM
    Reply # 582876 on 582504
    Deleted user
    Ask Bud he probably has the info. in memory.
  • May 03, 2011 5:14 PM
    Reply # 583659 on 582504
    Anonymous
    Tom, call TDS - they should be able to tell you exactly how much you will need.
  • May 28, 2011 11:12 AM
    Reply # 604058 on 582504
    Deleted user
    We used SIS 440.  TDS will  have all the supplies you need and willl consider bulk discounts by the case.  TDS will also walk you through the process and answer your questions.  Very helpful.  The stuff works great.  It is also available from defender.com at good prices.
  • May 29, 2011 5:42 AM
    Reply # 604806 on 582504
    I hired a guy to recaulk my deck, and he has finished about half the deck, and has gone through a case of TDS. By the way, he has had to pull a few of the screws and is of the opinion that these are sheet metal screws and inappropriate for the application. I think they are from the original construction. I know that Bud recommends the stove head type screws, but my guy appears to be right about the threads and the lack of a shank on the screws. I know enough about screws to know that unless you over drill the hole through the teak, you would need a shanked screw to insure that the screws hold the boards firmly to the deck.
  • May 29, 2011 8:05 AM
    Reply # 604848 on 604806
    Frank Scalfano wrote:I hired a guy to recaulk my deck, and he has finished about half the deck, and has gone through a case of TDS. By the way, he has had to pull a few of the screws and is of the opinion that these are sheet metal screws and inappropriate for the application. I think they are from the original construction. I know that Bud recommends the stove head type screws, but my guy appears to be right about the threads and the lack of a shank on the screws. I know enough about screws to know that unless you over drill the hole through the teak, you would need a shanked screw to insure that the screws hold the boards firmly to the deck.

    It is necessary to use self tapping screws (sometimes called sheet metal screws) to fasten into fiberglass.  These were used throughout the construction of the Westsail boats, even on wood to wood and metal to wood fastening.  We used a pan head screw (you call then stove head screws) because the edges of the screw will bite into the teak, but not spread it like a flat head screw with a taper on the underside would do.  The flat head screws tend to start a crack around each hole, while the pan head screws will not.

    It is also necessary to use a tapered drill bit with a countersink on it, so that the hole in the wood will be large enough so the sheet metal screw will bite into the fiberglass and pull the wood down to it. The countersink will make the hole necessary to cover the screw with a bung. 

    That is the reason you will find pan head self tapping screws on most of the Westsail boat construction. 

  • June 02, 2011 7:29 AM
    Reply # 611333 on 582504
    Deleted user
    TDS was great to work with and answered all my questions.  If only the actual work on the deck was as easy!   I ended up using the Fein Multimaster to regroove the decks - it's not fast, (pricey!!) but gives excellent control and it's relatively easy to follow the original groove edges, then use a sharp chisel to slice out the old material.   I've been working on the deck for a month now, about 3 days a week, and we're finally ready for taping and recaulking.  -Tom Koehl
  • June 03, 2011 8:45 AM
    Reply # 612165 on 582504
    Tom,

    The guy working on my deck is using the Fein tool for removing the old caulk as well. The people at TDS evidently sell a hand tool for this purpose, but the Fein seems to be a much better solution. My guy has two Feins, set up for use by the right and left hand so that he doesn't have to change the heads constantly. Expensive, but he is a pro and probably worth it for him.

    Frank
  • June 04, 2011 12:14 PM
    Reply # 613014 on 582504
    Tom,

    You are using the Fein Teak Blade, are you not?
  • June 11, 2011 6:39 AM
    Reply # 618746 on 582504
    Deleted user
    Oh, so now that I'm all finished regrooving there's a "teak" blade out there!!??   Oh, well, at least it's done, and I'm not likely to have to redo it in my lifetime.   Anyone have any clever ideas as to how to caulk between the SS bowsprit and the sampson posts?   I don't just want to goop on caulk and hope it fills the gap.   All I can think of is to put some caulk in a small sandwich bag, partially insert the sampson post with the lower (empty) part of the bag in the gap, then position the post and pull the bag down from inside the chain locker, effectively squeezing the caulk out of the bag into the gap.   I'll let ya'll know if it works.  -Tom