It might not seem obvious at first however one of the fastest ways to induce horrible (and indeed terminal) injury is to place screws (of any type materials or dimension) into the hull or deck of your boat. The ensuing damage can actually cause the untimely demise of a superbly good boat that might in any other case final for an additional twenty or more years.
Basically we've to investigate why the whole idea is so mistaken. Fibreglass is mainly glass (real glass) and plastic resin. If you tried to screw a screw into either glass or plastic resin you would quickly find out that the threads would smash the glass and plastic to minute smithereens all around the screw threads. The ensuing gap becomes a perfect route for water, both salt and recent, to spiral its way down into the core of your deck or into the nicely furnished inside of your boat.
Initially it's going to work. However, sealer (which is gentle) will crack, dry out, squash and degrade from UV effects. Bit by bit it'll progressively decay away, helped alongside by pushing, pulling, kicking and common pressure on the little bit of hardware it's attempting to carry to the deck. So, in time, the seal fails and the leaks begin again!
Generally inspired by the (initial) success of the non-leaking screws the enthusiastic proprietor will proceed to add dozens more culprits to the primary. The effects could be horrendous (in time). He will find yourself with dozens of unsuspecting little waterways all filling up the glass layers or the foam core interior including water on the fee of quite a couple of litres per 12 months. Visit
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BondingSo, screwing into glass and foam cored decks is out. How about timber? No way! Same factor but a bit totally different. The timber fibres get squashed when a screw enters and finally combines with acids contained within the wooden. This rots the wooden and corrodes the screw and water sucks happily down into the boat to cause destruction...so what can we do now?
There is fortunately a solution. It is nonetheless a more time consuming process and is mostly a little bit of a pain but the advantages are simply nice. Many years ago it was discovered that bonding of hardware to a ship was a very efficient way of permanently preventing a fastener (any fastener that's, canvas snaps, screws, bolts, self tappers and wood screws) from ever leaking. And (joyful days!) there are several ways of doing the job.
The actual concept is to 'mattress' the fastener into epoxy and permit it to remedy solidly around the fastener curing the propensity for detaching, coming loose, shearing, pulling and leaking ever once more. There are solutions for all fastener types and sizes, allow us to take a look at some.
Wood screwsBefore drilling wood screws into timber or glass, drill a pilot hole shallower than the depth required. Coat the wooden screw threads with epoxy and then fill the pilot hole with epoxy using a pipe cleaner or syringe (a printer ink refill plastic syringe is nice). Wait for bubbles to appear, refill the hole with more epoxy then insert your wooden screw and screw up. Wipe off extra from across the screw head with acetone or thinners. Allow to cure.
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