It may not appear obvious at first however one of the fastest methods to induce terrible (and certainly terminal) injury is to position screws (of any sort material or size) into the hull or deck of your boat. The ensuing injury can literally trigger the untimely demise of a perfectly good boat that may otherwise final for an additional twenty or more years.
Basically we have to research why the whole idea is so incorrect. 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 discover out that the threads would smash the glass and plastic to minute smithereens all around the screw threads. The resulting gap turns into a perfect route for water, both salt and fresh, to spiral its means down into the core of your deck or into the properly furnished inside of your boat.
Initially it’ll work. However, sealer (which is gentle) will crack, dry out, squash and degrade from UV results. Bit by bit it will steadily decay away, helped along by pushing, pulling, kicking and basic pressure on the bit of hardware it is trying to carry to the deck. So, in time, the seal fails and the leaks start once more!
Generally inspired by the (initial) success of the non-leaking screws the enthusiastic owner will proceed to add dozens more culprits to the primary. The effects could be horrendous (in time). He will end up with dozens of unsuspecting little waterways all filling up the glass layers or the froth core interior adding water at the rate of fairly a couple of litres per year. Visit https://www.automaticchina.com to search all kinds of screw machines from china.
So, screwing into glass and foam cored decks is out. How about timber? No method! Same thing but a bit totally different. The timber fibres get squashed when a screw enters and finally combines with acids contained within the wood. This rots the wooden and corrodes the screw and water sucks fortunately down into the boat to trigger destruction…so what do we do now?
There is happily an answer. It is nevertheless a more time consuming course of and is really a little bit of a ache however the advantages are just great. Many years ago it was found that bonding of hardware to a ship was a very efficient method of permanently stopping a fastener (any fastener that is, canvas snaps, screws, bolts, self tappers and wood screws) from ever leaking. And (pleased days!) there are several methods of doing the job.
The actual idea is to ‘mattress’ the fastener into epoxy and allow it to cure solidly around the fastener curing the propensity for detaching, coming free, shearing, pulling and leaking ever again. There are solutions for all fastener varieties and sizes, let us take a look at some.
Before drilling wooden screws into timber or glass, drill a pilot gap shallower than the depth required. Coat the wood screw threads with epoxy after which fill the pilot hole with epoxy utilizing a pipe cleaner or syringe (a printer ink refill plastic syringe is nice). Wait for bubbles to seem, refill the opening with extra 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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