Monday, July 23, 2018

Rubstrips

I had used the fancy KeelEasy strips, with high hopes, but they were a disappointment. They promptly started falling off. 
A few builds ago, I ordered CLC's kit for building rubstrips with Dynel fabric and graphite powder, but didn't use it. I still had the graphite powder, found Dynel locally, and decided to improvise.
I epoxied in two layers of the Dynel fabric. Odd stuff this is-seems almost like cotton.
After cure, I mixed epoxy, graphite,and a little wood flour. I found that if I tried to thicken the epoxy with just the graphite, it "never" thickened. I hope the electrical tape masking leaves a sharp line.
Scraped & sanded the first coat, and painted on a second. This stuff is hard to cut, which is probably a good sign.
Its also hard to sand. Electrical tape wasn't a good choice for masking, and I had a hard time pulling it out to leave a clean line.
Finished. Sanding was difficult, because the dust was loaded with graphite powder which got "everywhere". I also had to sand, re-epoxy and re-varnish the hull areas around the strips. 
In all, the tape strips looked better, but these are permanent.