I use a not too expensive, but high quality paper of 340grams.
"Zerkall" it is called - German brand.
It os not a watercolour paper, but a paper for use in classic etching/printing techniques.
Really nice - easy to work with, and as said - worth the money, which isn't too high..
(found their website, but I am buying from a danish store)
I think I found the paper, and it says:
Mould Made Printmaking Paper, wove
340 g/sqm, ca. 50 x 68 cm lg, rough surface, cotton content
Nr. 7314/1: off white
Applications: silkscreen, hand lithography, offset, etching,
embossing, block printing, letterpress printing, pastel, pencil