Me too Alba and I agree also.

I recently renovated a pretty dingey mobile home that was panelled in the stuff Rapaire. I didn't fill the grooves, but I did fill any cracks and staple holes in the grooves with a light application of Drydex using my fingertip and I didnÕt bother sanding the grooves.

I can tell you that after hundreds of grooves most of the skin and the nails on my fingers were worn down to nothing. I also filled any imperfections in the panelling and countersunk the staples and filled the holes with Drydex, then sanded as well.

As an undercoat I used Zinsser B.I.N. (white shelac) and I love the stuff. ItÕs adherence is second to none, it seals in volatiles, it dries in a flash and it sands very well and usually just requires 1 coat.....and if that isnÕt enough, you can really get off on the fumes LOL ( at least its alcohol based), but the surface should be clean before you apply it, any residual grease will affect the adherence.

A final coat of a good latex and here's a couple of pics of the result Mobile Pic1 and Mobile Pic2 although unfortunately they don't show a real good close up of the final surface. It was quite the transformation. Best wishes on your project.