This was my first chance to try out the watercolour paper I bought recently. It’s 300lb (640gsm) weight paper, about 1.5mm thick so not likely to buckle with fluid paint.
What it did do was suck up the paint – the first few layers practically disappeared! Next time I use it I’ll be spreading a layer or two of gesso to try and seal the surface. It was great to paint on though and I’m so happy I tried it (a pleasant change from acrylic paper which I don’t like much at all).