For those who want an even toothier surface, Art Spectrum Colourfix Rough (formerly known as Supertooth) is the answer.
Art Spectrum has produced Colourfix Rough which compliments the Smooth and the Original (Medium) textures, which now aligns with Watercolour paper terminology – Smooth, Medium and Rough. Art Spectrum Colourfix Rough is screen printed onto 300gsm European Archival Watercolour Paper in Clear.