Returning the hull and repairs to damaged hull section

 

http://epoxy.ltd

Products used

MAS low Vis resin and Slow Hardener

Biosolv for cleaning syringe and brushes

 

Once the hull was back on the caterpillar and we had it wedged in place Paul and his crane departed and we spent the afternoon chocking and blocking the hull so that we could winch it back into the workshop.

This was a fairly simple process of using lumps of timber and 6 inch lag bolts to hold everything together.

Once I was happy with the support we ran a cable to a snatch block at the far end of the workshop and winched the hull back into its build spot.

Right way up and ready to move back in

starting the journey in

getting there

a quick adjustment of the pull cable

disconnecting

Now we were in it was time for a mug of tea then a look at the damage.

damage 1

damage 2

looking at the damage you can see that the outer skin has bent but it has not broken the inner layers of ply have split but not on the glue line , just the fibres of the wood have pulled apart, the inner edge has split through the ply. So if we had been afloat we would have still kept water out, I put this down to the stretch factor that is built into MAS epoxies.

The repair was started by clamping an oversized bit of hardwood to the outside and pulling the damaged area back into its build curve using clamps lots of them.

btr

btr

We then left it for 48 hours tightening the clamps every 8 hours or so.

Once I was happy that everything was back in shape, we drilled 5mm holes at the ends of splits and in the middle, then we held the splits open with wedges screwdrivers etc and poured in MAS low vis resin and slow hardener, we used slow hardener so that the epoxy will soak down to the bottom of each split, once I had enough epoxy in the damaged area we clamped the area up and left is for 24 hours.

Splitting open the seems

Pouring in the epoxy

clamped back up , black plastic stops epoxy sticking to clamps

work complete