someone told me once that the best thing to do when replacing the transon is to cut out around the bung hole, say 80mm square then glass in a solid piece of perspex and then once in you hole saw out the bung hole??
this is so the water cant get in to wood.
also hole sawing around where the ladder bolts would go, and using solid resin and then hole sawing again once complete!
any ideas?
Polyester will not stick to Perspex very well and it will delaminate, why not simply stop the wood short of the bottom most V and fillet with more glass to build up a thickness, then holes saw to pull a solid glass plug out.
Dont fully get the ladder bolts bit.
cheers fnq
Why don't you just resin the ply inside the bung hole to keep the water out.
I hear you though my Signature was just raw ply where the bung met the transom.
Thanks Signature you do a great job of fit out.
But then again I guess your boats last longer than the average Aussie car if looked after.
A marriage licence should be like your fishing licence!
Expires every year and you get a 3 day pass when you go interstate.
don't put perspex anywhere near it - asking for trouble.
Enlarge the hole if you are concerned - on yacht decks with composites ( foam) you simply use a bent screwdriver tip in a electric drill ( keeps both skin inside and outside perfect and gouges out the coreboard) or you can do the same with a router bit and then fill with suitable resin. Redrill the original hole and this time it will be in solid resin so no chance of water ingress causing rot or delamination on the core be it wood or foam ect. Used for mounting all deck hardware on yachts as it stops the crushing of the core when tightening up bolts for fittings.
The fillet and corner are very strong so it is a good point for the transom reenforcement material to meet and bond. Raising it by having several inches of solid glass would require sme extra engineering and adds weight to the transom where you don't ever want more weight
For fitting expernally on the outside of the hull like tranducers and so on a piece of polly board screwed and sealed to the bottom edge of the hull allows removal and addition of water pickups, tranducers etc without having transom penetrations all teh time and can also in teh case of a object strike release teh equipment without tearing screws out of the transom as they tear out of the polly board easier
ok awesome! thanks for all your help! hopefully this weekend i'll get around to doing it!!
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