Awkward old instrument holes

[sailorman]

Black perspex ( acrylic sheet ) makes a very smart backing, has the advantage over teak ply that you don't see rough edges. Hopefully attached a pic of reorganised instruments, from quite a time ago hence the dated equipment. Not a cheap material however if I recall.

This is what i did with dark acrylic when swapped out B & G to Raytheon ST60s

 

[Daydream believer]

I used a piece of 10mm Th white UPVC soffit panel as the backing

 

[Kukri]

really making good the fibreglass by simply rebuilding is an easy job and it leaves everything as it was originally anything else is just bodging what is an easy repair, if you don't try you will never learn. The only problem you have at the moment is temperature but you can do all the prep work now and the glass work later when it warms up. I know that it does occasionally exceed 10° in Scotland so it's possible. It's your boat though.

I suppose the technique is to lay up against something flat and smooth (plate glass? Formica?) having first matched the gel coat colour? I really want to “lose” the holes behind the yellow tape... everything is better on the bulkhead where it is in line of sight.

 

[Fr J Hackett]

Here is the West System video on repair.

 

[Gymnopedie]

Some years ago I removed the old and large depth sounder from my Invicta 26 and covered he hole using a section cut from a white "plastic" kitchen shopping board, secured by self tappers and sealant round the edges. he material is easy to cut and finish - and cheap.

 

[Kukri]

Here is the West System video on repair.

Thanks!

 

[Fr J Hackett]

I know some of us might be regarded as fastidious or even exacting but some of the "repairs" owned up to on this and other threads does make one wonder about the state if not the seaworthiness of some vessels.

 

[webcraft]

I know some of us might be regarded as fastidious or even exacting but some of the "repairs" owned up to on this and other threads does make one wonder about the state if not the seaworthiness of some vessels.

I consulted with my main man for boat repair, Darren Taylor of Mainsail Marine, and he reckoned cutting a foot square hole in the bulkhead and using a material like perspex with not much structural strength was inadvisable in that location. So - am going to repair the damage and then maybe use a bit of perspex on top as a purely decorative rather than structural facing.

- W

 

[davidej]

Why do you need to enlarge the existing holes to a foot square? That will certainly weaken the panel.

If you decide to use marine ply/ perspex/cutting board, you only need to cut a hole big enough to take the new instrument.

 

[webcraft]

Why do you need to enlarge the existing holes to a foot square? That will certainly weaken the panel.

If you decide to use marine ply/ perspex/cutting board, you only need to cut a hole big enough to take the new instrument.

The old holes are in the way / overlapping with where the new holes will be.

- W