Where's the Rub Rail

The rub-rail on Mariposa was chalky and brittle. My attempts to clean it up had not satisfied me so I started to think in terms of how to replace it. Numerous drawings of teak moldings and rub-strakes didn't really suit me so one morning I took an angle-grinder and removed it. The outward turning flange that holds the deck and hull together during manufacture was pretty flimsy, but it did not leak.

After removing the flange, I dished out the glass enough to do an epoxy lay-up with tri-axial cloth. I used 3 layers of glass, each one narrower than the other in order to taper the glass to avoid sudden stresses. Although the glass that I added to the outside of the joint was without doubt stronger than necessary, I also added epoxy glass over the original taped joint on the inside because it seemed relatively easy to do.

I faired both lay-ups extensively with DA air sanders until I reached a point where I required some technological help to achieve the degree of perfection that I required. I bought a simple, inexpensive in-line sander from an auto supply store and built a "shoe" on the bottom that flexed enough to conform to the contours of the hull yet bridge the low spots.

Flat black laquer was used as an "indicator" to help determine where the hull required work. Spraying a light dust of black on the hull showed the high and low spots after a quick pass with the sander.

The joke around the Owen household is that it took me 3 hours to grind off the rub-rail flange and 3 years to put it all back together again. It wasn't quite that bad, but needless to say this is not a project for the faint of heart or those lacking resolve.



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