The papers have various chemicals in them to absorb, hold on to and "dry" the inks and these chemicals do strange things to almost everything I have tried coating.

The best bet is pure baryta paper. It is available uncoated in sheets and rolls from the Formulray. Even here some things are difficult to coat, as the baryta helps mask some of the density unless you use a good size. Pt/Pd have given me trouble but Silver Halide works well as does Cyanotype coated from gelatin.

PE