> I have finally started to skin my Putz-Walrus 17. I am using 14-oz canvas
> bought from a craft store. The hull is already skinned and I need some
> advice before continuing with skinning the deck. Is it necessary to treat
> the inside of the canvas to prevent mildew? If yes what should I use?

> My plan for the moment is to apply a primer-sealer to the outside before
> applying 2 or 3 coats of 100% acrylic exterior house paint.

> Thanks everybody, Ben-B

The first coat on my canvas kayak was a well thinned zinc type metal primer over which there are two coats of marine enamel. The primer has to fully saturate the canvas. I've used no filler and the surface is quite smooth, this mainly due to using 10 oz canvas rather than #10 canvas and sanding off the fuzz after the first coat.

My kayak has been stored outside but under cover in the Pacific Northwest for over 5 years with no sign of mildew.

Bram