I think I may have read too much about painting GRP and as a
result I was nervous about tackling the job. On Monday however, I was out of
excuses. The weather was dry and the forecast suggested there would be no rain
in the near future. I had all the kit I needed and the wind was light.
In applying the first coat of Pre-Kote I followed the best
advice I had been given –
1. work
with a small fine sponge- type roller;
2. apply
the paint union flag style – rolling in every direction rather than simply
applying it in a right to left or up and down direction;
3. put
the paint on in thin coats;
4. keep
a dry brush handy to even out the coat and eradicate ridges or orange peel
effects caused by the brush.
Returning to the boat on Tuesday morning I was well pleased
with the results. There were a few areas of ‘orange peel’ effects, mainly on
curved areas and these were soon sanded smooth, using 240 grade sandpaper. So
all was set for a second application of Pre-Kote, unfortunately (or maybe
fortunately) before I could start, three guys turned up and began work on a
boat next but one to mine. Looking at the equipment they brought with them I
guessed they may be about to kick up some dust so I waited to see what
happened. To my amazement, they set to work with a chainsaw and angle grinder
and set about reducing their boat to neat one metre squares, which they
promptly loaded onto a trailer to take to the rubbish dump.
Curiosity got the best of me. Here is the story. One of
these guys bought this 22ft sailing cruiser on the water last year and brought
her to the boatyard to over-winter her. She was a pretty fast light sailing
cruiser of GRP sandwich construction. In essence, two sheets of GRP with a
central core of foam. The boat had a large spade keel and she was laid up
ashore with legs made of scaffolding poles to keep her upright. The legs served
their purpose in keeping her upright, but they did not support the hull so all
the weight of the boat rested on the keel which stood on hard ground. During
the course of the winter the keel pierced the hull and came up through the
cabin. Repair would have been too expensive and so the owner decided to cut his
loss by scrapping her and avoiding any more yard rental fees. Within half a day
she was gone.
Like an idiot I took this to be a good sign. The paint would
be well dry before the dew. Unfortunately, I hadn’t considered the effect of
day–long strong sunshine on the GRP surface. I subsequently discovered that
although the air had been 35 Degrees C, the GRP had been closer to 50 degrees.
As a result, the paint dried as it touched the surface. Orange peel effects and
hard edges couldn’t be smoothed out and, at times, the job felt less like
painting and more like plastering. I should have stopped but I persevered. It
didn’t look good when I finish and it looked even worse the following day.
Nothing for it but to sand it smooth. It wasn’t difficult but it was disheartening. Once again John Lee Hooker and BB King assisted me in retaining my sanity..
So, as of today, the boat has a cockpit with two coast of
Pre-Kote on her and she is ready for her two coats of Toplack – but the heat
wave has broken and we are now in a thundery stormy period and I can’t move
forward on this job until I get a forecast offering 48 hours of dry calm
weather.
Still, to look on the bright side, there are still lots of other
jobs I can get on with so a change in strategy is called for. If I can’t paint
the cockpit I’ll start polishing the combings and preparing the decks for an
application of non-slip deck paint.
Seaward