For cast iron and steel keels, follow the same advice for steel in the sections above. For best results on pitted and hand prepared metal, we recommend using SEAJET 118 Epoxy Primer instead of SEAJET 117 Multipurpose Epoxy Primer.

For lead keels, abrade the surface with 80-120 grade wet and dry or emery cloth. Then follow the specification for aluminium in the sections above.