I started a related thread;
Cataract Oar Clearcoat
on page 2 is the Cataract Rep's response. Only thing I'd change is to use the brush application. Mine were pretty shredded, exposed glass and rough. The aerosol works great but it's $9/can and takes multiple coats. A quart was $15. After using an entire aerosol can (3 coats), I still had rough surfaces. When I did my plywood side & floor boards I brushed it on, having some left over I sanded the oars with 400 wet/dry (wetter the easier) and brushed on 1 coat. Look like new. At most you'd need two coats; don't neglect to sand between coats.