Replacing teak on a GRP deck

MapisM

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I'm considering a GRP boat whose main deck is fully covered with teak.
And that wasn't even an option, just standard construction of the yard. Therefore, I'm told that the fiberglass underneath was moulded flat, without any antiskid surface.
Now, even if the original teak was very nicely done, it's now worn out in the most exposed areas, and I am thinking to remove it and not replace it at all.
I mean, neither real teak nor its synthetic imitation, and also not cork (which maybe would be my preference, if I really should stick something above the GRP).
Nothing, just leave it bare plastic.

But of course, it's irrealistic to expect that it will be sufficient to remove the existing glued teak planks, for two reasons:
Firstly, the nasty sika stuff originally used to glue the teak will surely be hard to remove, and it's safe to bet that the grp surface will be somewhat damaged in the process.
Secondly, as I said the deck was moulded without the typical diamond antiskid surface, in all the areas (walkarounds and bow) that were meant to be covered with teak.
So, some sort of antiskid treatment will be necessary anyhow.

And the type of finishing that popped to my mind is the one often found in long range/expedition boats, like in the Nordie example below.
Actually, I know nothing about the material used, and the procedure required to attach the grey antiskid stuff to the fiberglass (I mean, grey in this example, but I've seen also white and beige).
I would think it's not something done during the moulding process, unless you folks know better.
And if it's a post-processing, hopefully it could be applied also on a boat already built, without needing any particular treatment difficult to arrange on a finished boat?
The only thing I'm sure of is that this kind of treatment is extremely strong and durable, doesn't get hot under the sun, and even if nowhere near as nice as teak, still gives a reasonably good feeling when walking on it barefoot, and it's much less slippery when wet. All of which makes it more than good enough for me! :)

Any suggestion on if, how, and with which sort of material/procedure such job can be done is most welcome - manyTAI!
45.jpg
 
You could also consider Kiwigrip which is a textured non slip coating. This will deal with some imperfections on the surface of the substrate. non slip paints would require more filling and fairing to get a good surface.
 
Many thanks, J.
I did suspect that it wasn't rocket science, but that's even simpler than in my most optimistic hopes.
Makes me wonder why this type of finishing isn't more popular than the usual gelcoat diamonds, because in terms of antiskid properties it's even better - and it also lasts forever, if some boats of the 70s I've seen in the US are anything to go by...
Btw, it isn't expensive, either: 22 quids for 750ml, with a 9.5 sqm/l coverage, means about £3/sqm.
Excellent, now I'm prepared to challenge any silly quotation I might get for the job.
Thanks again! :encouragement:
 
You could also consider Kiwigrip which is a textured non slip coating. This will deal with some imperfections on the surface of the substrate. non slip paints would require more filling and fairing to get a good surface.
I suppose this is the stuff you are mentioning: http://www.pyiinc.com/KiwiGrip/
Just had a look at their website and video, and I see what you mean.

Actually, for some reason it gave me the impression to be less durable stuff, but that's just gut feeling.
Is there some consensus on which is the best/more popular product of this type?
It would be interesting to know what is used by the best builders whose boat decks are treated in this manner...
 
BTW, how do you deploy that c50kg of port side anchor on that Nordhavn?
LOL, maybe they assume that Nordhavn crew members are by definition strong enough to handle just about everything by hand... :D
No idea, actually!

PS: on second thought, maybe the logic is that if you lose the main anchor, you might still have a spare chain, pull it around the winch, let the end of it go along the roller aligned with the winch, then pull back onboard a bit of chain, attach it to the second anchor, and drop it.
But I'm just guessing... It surely doesn't seem meant to be used in parallel.
 
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You use the chain stopper on the stb one.lock it off
Then - take stb chain off freeing up the one capstan.
Make sure the port anchor can not move , tie it off ? - does not matter how.

Take a handful of port chain , pull it up wrap it round the capstan , untie / free off the port anchor .
Done
 
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I'm not sure to see what you mean, PF.
There's no such thing as a port chain and locker, as you can see better in the other pic below.
Port anchor roller looks only meant as a way to store a spare anchor, I reckon.
The only fully functional chain locker/winch/bow roller is on stbd side - hence jfm question, as I understood it.
And hence my previous "on 2nd thought..." comment.
46.jpg
 
I suppose this is the stuff you are mentioning: http://www.pyiinc.com/KiwiGrip/
Just had a look at their website and video, and I see what you mean.

Actually, for some reason it gave me the impression to be less durable stuff, but that's just gut feeling.
Is there some consensus on which is the best/more popular product of this type?
It would be interesting to know what is used by the best builders whose boat decks are treated in this manner...

Traditionally the deck paints from international and Blakes (now Hempel) were the popular ones. Virtually all the UK builders used International. Westerly is an obvious example. However, not sure that type of finish was particularly popular on power boats. The up market alternative before teak became popular was a composite sheet material called Treadmaster, both on yachts and particularly boats with working or commercial aspirations. Very durable and non slip with a moulded diamond pattern on some, but just as expensive to replace when worn as teak. Usually laid in a pannelled fashion as the painted areas in your photo.

Kiwigrip is a relatively new product - about 5 years or so on the market. So not much experience on longevity, but good feedback of ease of application, flexibility of finish and non slip ability.
 
I suspect it's not a spare anchor just a different one to use depending on the sea bed
But in a hurricane you could use both anchors by using rope and the capstan
 
Just be aware that removing of teak of GRP might be one of the most under estimated jobs on a boat. it can take literally ages if it was bonded on well.
 
Hi Mapism
If you are in Carloforte or going there soon can I make a suggestion. Friends of ours own a catamaran called Duet which is on the outer pontoon at Marine Sifredi. Have a look at their deck finish which I think is superb, I am fairly sure it is Kiwigrip and it looks superb. Very uniform looking and easy to keep clean and fine for bare feet with good grip. If you want more info on it I will put you in touch with the owners.
Nigel
 
Many thanks N for the pointer, it would be very interesting indeed to see in flesh a Kiwigrip deck.
And timewise, I should go there for a while, before coming back and follow the job on the other boat (if any - not sure yet).
I'm just not yet positive about timing, do you know for how long are they going to stay in CF?
Anyway, I'll email you my plans asap! :encouragement:
 
I suspect it's not a spare anchor just a different one to use depending on the sea bed
But in a hurricane you could use both anchors by using rope and the capstan
With that setup, I have two words for both these scenarios: good luck! :rolleyes:
 
With that setup, I have two words for both these scenarios: good luck! :rolleyes:

Surely the port side anchor isnt intended to be used with the anchor chain at all. I would say it is probably only an emergency kedge anchor intended for use only when the starboard anchor and chain has to be abandoned on the seabed in the event of an anchor fouling. The port anchor is probably deployed with an all rope rode using the rope winding capstan on top of the anchor winch. In fact if my eyes dont deceive me the bit of chain attached to the port anchor is made up in a loop ready to be tied to a rope
 
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