Slight damage to the hull when removing the skin fittings

[Duncancw]

I have just removed the skin fittings from my Bavaria 32 (2001) and the original fittings appeared to have a key (small piece of bronze that was attached to the skin fitting and was buried into the hull - presumably a design to stop the skin fitting from turning when being tightened ) . I used an angle grinder with a metal grinding disk. To get the fitting out I had to remove the key before the fitting would come free which has cause a small amount of damage to the hull. The key was buried about 3mm into the hull and is about 3mm in length and about the width of a grinding disk. The hull it's exactly very thick, I looks like it's only about 1 cm. I was going to repair the damage with some west systems thicken epoxy. Would this be strong enough or will I need to open up the damage and start laying up some additional glass?

 

[RJJ]

I have just removed the skin fittings from my Bavaria 32 (2001) and the original fittings appeared to have a key (small piece of bronze that was attached to the skin fitting and was buried into the hull - presumably a design to stop the skin fitting from turning when being tightened ) . I used an angle grinder with a metal grinding disk. To get the fitting out I had to remove the key before the fitting would come free which has cause a small amount of damage to the hull. The key was buried about 3mm into the hull and is about 3mm in length and about the width of a grinding disk. The hull it's exactly very thick, I looks like it's only about 1 cm. I was going to repair the damage with some west systems thicken epoxy. Would this be strong enough or will I need to open up the damage and start laying up some additional glass?

If you are using Trudesign they specify hull thickness must be 20mm (for smaller sizes) and 25 or 30mm (larger) so you would be building up inside using some form of backing plate, maybe glassed in, which will add strength (that being the point).

Not sure what the guidance would be for other skin fittings, but I can't seen why it should be different just because of DZR instead of FRP.

I would fill your external damage with silica and epoxy.

 

[Tranona]

I have just removed the skin fittings from my Bavaria 32 (2001) and the original fittings appeared to have a key (small piece of bronze that was attached to the skin fitting and was buried into the hull - presumably a design to stop the skin fitting from turning when being tightened ) . I used an angle grinder with a metal grinding disk. To get the fitting out I had to remove the key before the fitting would come free which has cause a small amount of damage to the hull. The key was buried about 3mm into the hull and is about 3mm in length and about the width of a grinding disk. The hull it's exactly very thick, I looks like it's only about 1 cm. I was going to repair the damage with some west systems thicken epoxy. Would this be strong enough or will I need to open up the damage and start laying up some additional glass?

the laminate is ramped down to single skin where the skin fittings are. That area is not under any stress or load so just fill the damage with thickened epoxy and bed the new fitting in.